publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2024-03-01 | This study proposes a hybrid metaheuristic optimal design method for an impact damper system, which is attached to a flexible cantilever beam. A nonlinear damper consists of an embedded closed chamber where a ball can move and reduce the amplitude of the main system via motion transfer. Due to the complexity and large ... | Optimizing the performance of nonlinear impact damper connected to beam in forced vibrations with hybrid metaheuristic method | 10.1007/s41939-023-00197-2 |
2024-02-23 | In this study, we investigate the relativistic dynamics of vector bosons within the context of rotating frames of negative curvature wormholes. We seek exact solutions for the fully-covariant vector boson equation, derived as an excited state of zitterbewegung. This equation encompasses a symmetric rank-two spinor, ena... | Vector bosons in the rotating frame of negative curvature wormholes | 10.1007/s10714-024-03213-z |
2024-02-21 | In this work we present a multibody dynamics system composed of geometrically exact nonlinear beams with inelastic behavior, representing flexible system components. The main focus of the work is to introduce advanced energy dissipation models using hardening and softening plasticity into such beam models and to show h... | Multibody dynamics system with energy dissipation by hardening and softening plasticity | 10.1007/s11044-024-09972-6 |
2024-02-21 | This work deals with the solution and asymptotic analysis for a porous-elastic system with internal damping of the fractional derivative type. We consider an augmented model. The energy function is presented and establishes the dissipativity property of the system. We use the semigroup theory. The existence and uniquen... | Asymptotic behavior for a porous-elastic system with fractional derivative-type internal dissipation | 10.1007/s13540-024-00250-y |
2024-02-21 | Input and command shaping are extensively utilized in point-to-point maneuvers to transfer objects in industry. Most of the research conducted on these techniques assumes dynamic systems with no damping and zero initial conditions. In some cases, the initial conditions cannot be assumed to be zero. For example, a crane... | A waveform command shaping control of a damped single degree-of-freedom crane system with nonzero initial conditions | 10.1007/s40435-024-01392-w |
2024-02-19 | This work investigates the well-posedness and stability outcomes of the one-dimensional Cauchy problem within a system involving swelling-porous elastic soils and thermal effects. The heat conduction in this system is described by the Lord–Shulman theory. By the energy method, we establish the existence of solutions an... | On a Lord–Shulman swelling porous thermo-elastic soils system with microtemperature effect: well-posedness and stability results | 10.1007/s13370-024-01170-z |
2024-02-19 | The stiffness (K) and slenderness factor (λ) of a steel plate-based damper has been studied on the basis of elastic-inelastic-plastic buckling (EIP) modes and flexural/shear/flexural-shear failure mechanisms (FSF-S), which has been designed for the improvement of the behavior of concentrically braced frames. Steel plat... | Prediction of steel plate-based damper for improving the behavior of concentrically braced frames based on RSM and ML approaches for sustainable structures | 10.1038/s41598-024-54845-9 |
2024-02-17 | In this paper, a Damping Impedance Method (DIM)-applied power Hardware-in-the-Loop Simulation (HILS) test-bed is proposed to test the stability of a Low Voltage DC (LVDC) grid composed of multiple converters. The impedance interaction between the source-side system and load-side system which consists of the LVDC grid i... | Development of Power Hardware-in-the-Loop Simulation Test-bed to Verify LVDC Grid Stability Using Offline Damping Impedance Design | 10.1007/s42835-024-01817-8 |
2024-02-17 | This paper proposes a new hybrid optimization technique that merges a differential evolution algorithm with a local strategy using the Nelder–Mead algorithm or simplex search algorithm and in Matlab software package, referred to as ( fminsearch ). To examine the variation in parameter estimation erros resulting from di... | Comparing optimization algorithms for parameter identification of sigmoid model for MR damper | 10.1007/s40430-024-04698-0 |
2024-02-16 | Prolonged exposure of vehicle vibrations can cause poor vehicle stability, driver tiredness, ride discomfort, impair focus, and even increase the chance of an accident. Automotive suspension systems are a common way to make a ride more comfortable, protect the rider and vehicle from the harmful effects of vibration. Al... | Development of a hybrid vibration isolator for better ride comfort and vehicle stability | 10.1007/s40430-024-04711-6 |
2024-02-15 | The problems of vibration and noise have seriously affected people’s production and life. Hydrogel can be used as damping material because of its good viscoelasticity, but the current damping material is difficult to meet the needs of actual production and life because of the lack of wide damping temperature and freque... | Study on viscoelasticity and damping properties of OSA/PAAM hydrogel | 10.1007/s10965-024-03913-9 |
2024-02-14 | We propose a simple numerical procedure to approach the symbol of a self-adjoint linear operator $$\mathcal {A}$$ A by using trace estimates of a corresponding discretization matrix A , with numerical data. The Symbol Approximation Method (SAM) is based on an adaptation of the matrix trace estimator to successive disti... | The symbol approximation method: a numerical approach to the approximation of the symbol of self-adjoint operators | 10.1007/s40314-023-02586-2 |
2024-02-14 | The sustainability of today’s industry turned into a critical requirement on account of energy cost increases, environmental pollution, and carbon emissions. As an important segment in mechanical drive, the vibration and noise from gear transmission negatively impact the physical and psychological health of workers and... | Temperature control-based design of variable damping and lightweight gear bodies | 10.1007/s00170-024-13133-6 |
2024-02-13 | Traditional squeeze-film dampers are used in modern aircraft generators as vibration-suppressing devices. However, the conventional squeeze-film damper has the disadvantage of highly nonlinear oil film force. This study aims to improve the dynamic characteristics of the squeeze-film damper by changing its geometric str... | Nonlinear dynamic of turbulent bearing-rotor system under quadratic damping with HSFD and active control | 10.1007/s40430-024-04691-7 |
2024-02-13 | The generalized fractional derivative is a useful tool for describing the mechanical property of viscoelastic dampers in vehicles. However, the complex integral form of the generalized fractional operator and the non-Markov property of fractional system make it challenging to perform stochastic dynamic analysis on mult... | Stochastic bifurcation and dynamic reliability analyses of nonlinear MDOF vehicle system with generalized fractional damping via DPIM | 10.1007/s11071-024-09313-4 |
2024-02-13 | In this study, a novel passive hybrid damper based on combinations of shape memory alloy (SMA), steel and glass fiber-reinforced polymer (GFRP) was introduced. The hysteretic properties of both SMA and steel and reversibility effect of both SMA and GFRP rods provide a superior passive damping device to dissipate large ... | A Novel Passive Hybrid Triple-Material Damper | 10.1007/s13369-024-08734-y |
2024-02-10 | The damping efficiency of vertical porous baffles is investigated for a dynamically coupled fluid-vessel system. The system comprises of a two-dimensional vessel, with a rectangular cross-section, partially filled with fluid, undergoing rectilinear motions with porous baffles obstructing the fluid motion. The baffles p... | Dynamic sloshing in a rectangular vessel with porous baffles | 10.1007/s10665-024-10333-7 |
2024-02-08 | We consider the total energy decay together with the $$L^{2}$$ L 2 -bound of the solution itself of the Cauchy problem for wave equations with a short-range potential and a localized damping, where we treat it in the one-dimensional Euclidean space $$\textbf{R}$$ R . To study these, we adopt a simple multiplier method.... | Energy decay for wave equations with a potential and a localized damping | 10.1007/s00030-023-00906-3 |
2024-02-08 | Concrete-filled steel tube (CFST) arch bridges have a high center of gravity and a substantial mass, resulting in a discernible seismic response. Consequently, long-span CFST arch bridges must retain exceptional seismic performance and appropriate seismic control design. In this study, the dynamic response and seismic ... | Shaking table test study on the seismic control of concrete-filled steel tube arch bridges based on dampers | 10.1007/s43452-024-00864-2 |
2024-02-07 | This paper presents the effects of geology and local soil conditions on the intensity of ground agitation with a moderate earthquake of magnitude M _ w = 6.8 that struck Boumerdes, on May 21st 2003. The analysis of the earthquake response of the ground soil specific to the site of Zeralda, located west of Algiers was ... | Analysis of local site effects on seismic ground response under Boumerdes earthquake scenario: case study of Zeralda site of Algeria | 10.1007/s41062-024-01368-x |
2024-02-03 | In the last two decades, bottom ash has been widely used as an alternative to conventional granular fill in various construction activities, either by replacing the whole or a portion of the fill material. This study investigates the dynamic behaviour of bottom ash and compares its response with sand through strain-con... | Investigating the Dynamic Behaviour of Bottom Ash Versus Sand Using Cyclic Simple Shear Tests | 10.1007/s10706-024-02743-2 |
2024-02-02 | Bolted joints play a more and more important role in the structure with lighter weight and heavier load. This paper aims to provide an overview of different experimental approaches for the dynamic behavior of structures in the presence of bolted joints, especially the energy dissipation or damping at frictional interfa... | Experimental studies on the energy dissipation of bolted structures with frictional interfaces: A review | 10.1007/s40544-023-0809-8 |
2024-02-01 | The utilization of communication linkages generates delays that degrade system dynamic performance and cause fluctuations in the system frequency while the extensive integration of renewable energy sources may cause further increase in the frequency oscillations owing to low inertia. By considering the inclusion of the... | Impact of virtual inertia and damping control on stability delay margins of load frequency control systems with renewable energy sources | 10.1007/s00202-023-01984-3 |
2024-02-01 | The aim of this study is to evaluate the performance of a recently proposed tuned mass damper (TMD) to control seismic demands of multi-degree of freedom (MDOF) structures. The TMD is composed of a mass, a viscous damper, a linear spring, and a shape memory alloy (SMA)-based nonlinear stiffness unit. The performance of... | Evaluation of a nonlinear TMD seismic performance for multi-degree of freedom structures | 10.1007/s42107-023-00850-8 |
2024-02-01 | The permanent magnet electrodynamic suspension (PMEDS) owns the promising application prospect, due to its simple structure, low cost and reliable load capacity. However, the underdamping of the PMEDS system is still a challenge in engineering applications of transportation. This paper proposes a passive damping method... | Damping characteristics improvement of permanent magnet electrodynamic suspension by utilizing the end-effect of onboard magnets | 10.1007/s00202-023-01959-4 |
2024-02-01 | Based on two-grid discretizations, this paper introduces a parallel finite element method for the 2D/3D Navier–Stokes equations with damping. In this method, we first solve a fully nonlinear problem on a global coarse grid, and then solve linearized residual subproblems in overlapping fine grid subdomains to update the... | A parallel two-grid method based on finite element approximations for the 2D/3D Navier–Stokes equations with damping | 10.1007/s00366-023-01807-w |
2024-02-01 | A damper is a significant tool that can enhance a building’s seismic performance. When these dampers are integrated into a structure, they help to reduce seismic forces such as absolute acceleration, displacement, velocity, and base shear. By simulating earthquake scenarios with and without tuned mass dampers (TMDs), i... | Inelastic behavior of reinforced concrete structure with tuned mass damper | 10.1007/s42107-023-00881-1 |
2024-02-01 | Elastohydrodynamic lubrication (EHL) point contact occurs between two rough surfaces at the mesoscopic level, while the interaction of rough surfaces involves contact between asperities at the microscale level. In most cases, the contact between asperities within an interface takes the form of lateral contact rather th... | Elastohydrodynamic Lubrication Interface Stiffness and Damping Considering Asperity Lateral Contact | 10.1007/s10338-023-00441-9 |
2024-02-01 | The study of a monopile offshore wind turbine with the soil–structure interaction effect is most challenging in structural design under multiple hazards, i.e., the combined wind, sea wave, and earthquake excitations. Different arrangements of passive tuned mass dampers (TMDs) were used to mitigate the service and seism... | Assessing seismic mitigation schemes of tuned mass dampers for monopile offshore wind turbine including pile–soil–structure interaction | 10.1007/s42107-023-00877-x |
2024-02-01 | An autonomous system of ordinary differential equations describing nonlinear oscillations on the plane is considered. The influence of non-autonomous perturbations decaying at infinity in time is investigated. Such systems are usually called asymptotically autonomous and arise, in particular, as a result of the reducti... | Asymptotic regimes in oscillatory systems with damped non-resonant perturbations | 10.1007/s11071-023-09195-y |
2024-02-01 | Curved bridges have seen widespread application in complex transportation networks, including interchanges and river crossings. If the displacements caused by an earthquake are too large, curved bridges have a greater risk of suffering serious damage due to the rotation of the superstructure. Since curved bridges are m... | Efficacy of a curved bridge with isolation bearing under seismic loading | 10.1007/s42107-023-00900-1 |
2024-02-01 | Heave plate is one of the most commonly used plates for controlling the movement of floating structures that are used for offshore deep water operations. Heave plates, in fact, move in both directions simultaneously. Therefore, the primary goal of this work is to examine the coupling motion’s effects on hydrodynamic co... | The effects of hydrodynamics load on the heave and pitch coupling oscillations of a plate | 10.1007/s00773-023-00983-0 |
2024-02-01 | Global existence and scattering are proved for some damped bi-inhomogeneous Schrödinger equation of Choquard type whenever the damping coefficient is large enough. For arbitrary damping, global existence of the solutions is claimed if the initial data belongs to some stable set. | Wellposedness and Scattering for Some Bi-inhomogeneous Schrödinger–Choquard Equation with Linear Damping | 10.1007/s12591-023-00675-6 |
2024-02-01 | The MR damper parameters used in the vehicle model correspond to a real-world damper and are chosen so that the MR damper model characteristics match those of the experimental damper. The control and response statistics of a non-linear vehicle model utilising an MR damper are produced iteratively using the equivalent l... | Parametric analysis of non-linear suspension system by optimal MR damper by rider model with sensor | 10.1007/s42107-023-00852-6 |
2024-02-01 | The architectural requirements imposed on the structural design of buildings sometimes necessitate vertical and horizontal irregularities with their possibly dangerous effects when these structures are subjected to earthquakes. One of the greatest challenges in structural engineering is the design of a steel high-rise ... | Seismic control of vertically and horizontally irregular steel high-rise buildings by tuned mass dampers including SSI | 10.1007/s42107-023-00890-0 |
2024-02-01 | The use of an electromagnetic-tuned liquid column inerter, known as ETLCDI, for mitigating the seismic response in a nuclear containment structure has been studied. The optimization of the structure incorporating the device has rarely been reported. The recently introduced enhanced version of the traditional liquid col... | Optimal design of earthquake-resistant containment for FPS-Isolated nuclear power plants with electromagnetic tuned liquid column damper inerter | 10.1007/s12206-024-0107-z |
2024-01-30 | In the present paper, we have analyzed the surface roughness influence on the dynamic performance of Rayleigh step bearing by taking the squeezing action. The non-Newtonian lubricant in the film region considered is a couplestress fluid. A stochastic random variable with a non-zero mean, variance and skewness character... | Surface Roughness Influence on the Dynamic Performance of Rayleigh Step Bearing Lubricated with Couplestress Fluid | 10.1007/s40010-023-00869-1 |
2024-01-30 | This paper proposes a method for the small signal stability analysis and correction of power system based on Light Gradient Boosting Machine (LightGBM). Taking the load power, branch power, and generator power as inputs, the minimum damping ratio is output to build the mapping relationship between input and output. A s... | Research on power system small signal stability analysis and correction based on LightGBM algorithm | 10.1007/s00202-023-02226-2 |
2024-01-29 | The sub-synchronous resonance (SSR) characteristics and countermeasures of grid-forming permanent magnet synchronous generators (PMSGs) controlled by DC voltage synchronization control (DVSC) are investigated in this paper. First, small-signal models of two PMSGs connected to a series-compensated network are establishe... | Sub-synchronous resonance in grid-forming PMSGs connected to series-compensated networks | 10.1007/s43236-023-00748-3 |
2024-01-25 | It has been corroborated that thermoelastic damping (TED) is one of incontrovertible sources of energy dissipation and limiting the quality factor ( Q -factor) in micro/nanostructures. On the other hand, it has been clarified that the fitting description of heat transfer process in structures with such small dimensions... | Non-Fourier thermoelastic damping in small-sized ring resonators with circular cross section according to Moore–Gibson–Thompson generalized thermoelasticity theory | 10.1007/s00419-023-02529-7 |
2024-01-25 | Nowadays, vibration energy absorption devices are widely implemented in many buildings subjected to severe vibration due to natural hazards, such as earthquakes, strong winds, and typhoons. Recently, viscous dampers have been commonly used in many structures as the most conventional damper type. However, the high maint... | Seismic performance of structure equipped with a new rubber bracing damper system | 10.1007/s43452-023-00845-x |
2024-01-24 | The dissipation behavior of granular balls in a quasi-2D closed container subjected to vertical vibration is studied by means of discrete element method in this paper. Four universal granular phases playing high damping effect are finalized by simulating the gravity environments of Earth, Mars and Moon, respectively. B... | Dissipation Behaviors of Vibrated Granular Balls in Different Gravity Environments | 10.1007/s12217-024-10097-w |
2024-01-18 | The damping ratio of reinforced concrete structure cannot be considered as a constant value, and some parameters such as increasing the age of the structure, the corrosion of the reinforcements, and the ground motion amplitude can significantly change the damping ratio. This study investigates the effect of the damping... | A Study of Progressive Collapse in Moment-Resisting Reinforced Concrete Structures Considering Damping Ratio | 10.1007/s40996-023-01331-3 |
2024-01-18 | In the paper, in order to explore the influence of human-structure interaction (HSI) in the vertical direction on the dynamic response of floors due to human-induced excitation, the formula for the human-plate interaction system is deduced. The pedestrian is in turn modelled as moving force (MF), spring-mass-damper (SM... | Study on Coupled Vibration of Human-plate System under Pedestrian Excitation | 10.1007/s12205-024-1446-0 |
2024-01-17 | The stick–slip friction observed in an atomic force microscope (AFM) experiment has been widely studied using the Prandtl-Tomlinson (PT) model or molecular dynamics (MD) simulations. However, the mechanisms of friction energy dissipation in AFM are still not well understood. Our detailed MD simulations of a benchmark s... | Contact Stiffness and Damping in Atomic-Scale Friction: An Approximate Estimation from Molecular Dynamics Simulations | 10.1007/s11249-023-01824-2 |
2024-01-09 | This paper deals with the long-time dynamics of a nonlinear system of coupled wave equations with fractional damping term and subjected to small perturbations of autonomous external forces. Inspired by the works of Chueshov and Lasiecka (J Dyn Differ Equ 16:469–512, 2004; Appl Math Optim Equ 58:195–241, 2008; Mem AMS 9... | Quasi-stability and Upper Semicontinuity for Coupled Wave Equations with Fractional Damping | 10.1007/s00245-023-10072-8 |
2024-01-07 | As the world increasingly turns to renewable energy sources, the integration of solar photovoltaic (PV) systems into the grid has emerged as a pivotal solution. Effective control methods are paramount to harnessing the full potential of these grid-connected PV systems. While existing control methods have laid a foundat... | Performance and Stability Analysis of Enhanced Lyapunov Function and Predictive Voltage Control with Active Damping for Single-Phase PV/Grid Electric Power System | 10.1007/s40998-023-00686-7 |
2024-01-05 | Objectives To study the effect of proportional damping on the dynamic response of centrifugally stiffened Timoshenko beam. Methods A novel method has been successfully developed to model and analyze the forced damped response of centrifugally stiffened Timoshenko beam. The method uses a single beam element with six phy... | Dynamic Modeling and Analysis of Centrifugally Stiffened Proportionally Damped Timoshenko Beam | 10.1007/s42417-023-01241-8 |
2024-01-04 | Introduction The study employed novel non-destructive testing techniques for coal sample such as resonant column testing, cyclic torsional technique, and ultra-sonic pulse velocity analysis. Methodology The study confirms the coal in the present study as bituminous coal by analyzing the microstructure and composition o... | Evaluation of Material Damping Properties in Bituminous Coal: A Comparative Analysis of Numerical and Experimental Approaches | 10.1007/s42417-023-01247-2 |
2024-01-03 | In this paper, we investigate the viscoelastic wave equation with variable coefficients and a delay, which is subject to nonlinear and nonlocal boundary dissipation. The existence of strong and weak solutions is obtained by means of Faedo-Galerkin approximation and denseness argument. By introducing an equivalent energ... | Stabilization of the Viscoelastic Wave Equation with Variable Coefficients and a Delay Term in Nonlocal Boundary Feedback | 10.1007/s10883-023-09673-x |
2024-01-01 | This chapter focuses on the response of a single degree of freedom (SDOF) system. It explains the basic procedure of vibration analysis which can be further extended for a system with a higher degree of freedom system. The chapter begins with the un-damped free response, damped free response and forced harmonic respons... | Response of a Single Degree of Freedom System | 10.1007/978-981-99-3614-4_4 |
2024-01-01 | Purpose This work presents the comparative damping performance of conventional viscoelastic material (VEM), 0–3 viscoelastic composite (VEC), and viscoelastic particulate composite (VEPC) damping layers in the active/passive constrained layer damping mechanism for plate vibration. Methods In the present study, passive ... | Damping Capabilities of Viscoelastic Composites for Active/Passive Constrained Layer Damping of the Plate Vibration: A Comparative Study | 10.1007/s42417-023-00882-z |
2024-01-01 | This chapter focuses on the modeling of different components of vibrating systems. The procedure of determining potential energies and kinetic energies of different type of discrete and continuous systems, which are required to develop mathematical model of any vibrating system, is also explained. Different types of da... | Modeling of Components of a Vibrating System | 10.1007/978-981-99-3614-4_2 |
2024-01-01 | The present study proposes a novel eddy-current-based tuned inerter damper (EC-TID) that integrates the tuned inerter damper (TID) with nonlinear eddy current damping. The inclusion of nonlinear eddy current damping is expected to improve the control performance of optimal TID. In particular, the mechanical model and c... | Improving the control performance of optimal tuned inerter damper via nonlinear eddy current damping | 10.1007/s11071-023-09054-w |
2024-01-01 | Most civil engineering structures exhibit a combination of viscous and Coulomb damping. It is known that the dominant mechanism of energy dissipation in the presence of structural defects such as cracks, defective connections etc. is due to dry Coulomb friction. Contrary to this, in the undamaged state of structures, t... | Experimental Investigation on Characteristics of Combined Viscous and Coulomb Damped System | 10.1007/978-3-031-49723-0_20 |
2024-01-01 | In this study, we examined the applicability of a response surface approach in the experimental design, parametric optimization, and formulation of predictive models in the 3D printing of aluminium-7075/Ti_48Zr_20Hf_15Al_10Nb_7 shape memory high-entropy alloy (SMHEA) composite. The input variables consist of the SMHEA ... | Enhancing mechanical and damping performance of 3D-printed aluminium-7075 with shape memory high-entropy alloy (SMHEA): parametric optimization and mathematical modeling | 10.1007/s00170-023-12651-z |
2024-01-01 | In the last decade, various promising nonlinear modal identification techniques have been developed based on the nonlinear normal mode (NNM) concept. Most of these techniques rely on the phase resonance testing approach where the identification of nonlinear modal damping is still an unresolved issue. The response-contr... | Experimental Modal Analysis of Structures with High Nonlinear Damping by Using Response-Controlled Stepped-Sine Testing | 10.1007/978-3-031-36999-5_17 |
2024-01-01 | Research on offshore wind technology has increased in the last two decades following progress and cost reduction in turbine design and operation, and the increased demand for renewable energy production. Coupled dynamic response of a floating offshore wind turbine under simultaneous wind and wave loading can be investi... | Numerical Investigation of a TLP Wind Turbine Under Wind and Wave Loads | 10.1007/978-3-031-53059-3_20 |
2024-01-01 | This paper presents the development of a Moving Element Method (MEM) for analyzing the dynamic behavior of a functionally graded material (FGM) plate. The FGM plate is resting on a Pasternak foundation characterized by variable foundation parameters following a power-law distribution along the length of the FGM plate. ... | Moving Element Method in the Dynamic Analysis of Functionally Graded Material Plates Subjected to Thermal Loads and Resting on a Variable Stiffness Foundation | 10.1007/978-981-99-7434-4_155 |
2024-01-01 | Purpose Our primarily objective is to investigate the properties of the hair clipper with the fractional model damping and proposed a robust control method to keep this device in the relevant operation zone. First, an appropriate strategy is applied to study the amplitude-frequency response of the hair clipper system w... | Dynamic Responses of Electrical Hair Clippers with Fractional Damping and Its Robust Stabilization Design | 10.1007/s42417-023-00895-8 |
2024-01-01 | Vibration, in most cases, is an undesirable phenomenon in electro-mechanical systems. The adverse effects of vibration in a system are noise, loss of energy, compromise on comfort, and reduced life span of mechanical systems. The current study focuses on vibration damping of a Flexible Cantilever beam (FCB) by utilizin... | Experimental Investigation of Pulse Width Modulation-Based Electromagnetic Vibration Attenuation of a Ferromagnetic Flexible Cantilever Beam (FCB) | 10.1007/s42417-022-00845-w |
2024-01-01 | This research study aimed to assess the impact of employing fluid viscous dampers (FVDs) on the seismic performance of ten-story, moment-resisting reinforced concrete (RC) buildings. The investigation involved the modeling and design of 17 RC structures, which were equipped with non-linear dampers arranged in 4 distinc... | A comprehensive study of viscous damper configurations and vertical damping coefficient distributions for enhanced performance in reinforced concrete structures | 10.1007/s42107-023-00831-x |
2024-01-01 | The paper presents full-scale observations and wind tunnel tests carried out to clarify the mechanisms driving the hanger vibrations observed in the final phases of completing the 1915 Çanakkale suspension bridge. It is found that high frequency low amplitude vibrations were caused by rhythmic vortex shedding whereas l... | Vibration Excitation and Damping of Suspension Bridge Hanger Cables | 10.1007/978-3-031-47152-0_19 |
2024-01-01 | Hysteresis is a memory-dependent and approximately rate-independent behavior seen in material damping. Some materials show asymmetric hysteresis loops that are pinched at the origin. In this paper, we propose a hysteresis model that captures pinched hysteresis loops with both symmetry and asymmetry. The model can captu... | A Versatile Asymmetric Hysteresis Model Motivated by a Study of Elastic Material with Microcracks | 10.1007/s42417-022-00843-y |
2024-01-01 | In this paper, based on monotone iterative method in the presence of the lower and upper solutions, a class of nonlocal problem of structural damped elastic systems with delay are studied in the case of noncompact semigroups in ordered Banach space. Firstly, we introduce the concept of lower S -asymptotically $$\omega ... | Lower and upper solutions for damped elastic systems with delay in ordered Banach space | 10.1007/s13160-023-00615-5 |
2024-01-01 | We consider the damping problem for a nonstationary control system described by a system of differential-difference equations of neutral type with smooth matrix coefficients and several delays. This problem is equivalent to the boundary-value problem for a system of second-order differential-difference equations, which... | Smoothness of Solutions to the Damping Problem for Nonstationary Control System with Delay of Neutral Type on the Whole Interval | 10.1007/s10958-024-06940-5 |
2024-01-01 | Full Heusler alloys (FHA) offer excellent possibilities due to their high Curie temperature, spin polarization, and predicted half metallicity. Among various FHA, $${\text{Ni}}_{2} {\text{FeAl}}$$ Ni 2 FeAl is the least studied alloy that can offer vast possibilities in exploring spin-based devices. By keeping this asp... | Investigation of Static and Dynamic Magnetization in Ni_2FeAl Full Heusler Alloy Nanomaterials | 10.1007/978-981-99-4878-9_77 |
2024-01-01 | Air springs have many advantages; besides, air spring dampers hold much promise for application in car suspension systems. A thermodynamic model of pneumatic elements is proposed in this study. Unlike the standard model generally accepted at present, this one does not imply that the rubber-cord membrane is absolutely f... | The improvement of scientific foundations for the technical theory of pneumatic elements with rubber-cord membranes: thermo-dynamic model of force and geometric characteristics of air springs | 10.1007/s12206-023-1205-z |
2024-01-01 | This paper examines the influence of discrete mode controllers with optimum sampling frequency to enhance the stability of the grid-integrated AC microgrid. The damping of low-frequency electromechanical oscillation performance of distributed generators of AC microgrid is analyzed. The AC microgrid is comprised of two ... | Stability Enhancement of AC Microgrid Using Discrete Mode Controllers with Optimum Sampling Frequency | 10.1007/978-981-99-6749-0_64 |
2024-01-01 | The damping system will oscillate during the operation of the adjusting camera, which is not conducive to the operation stability of the adjusting camera. Therefore, in order to suppress the oscillation, the corresponding controller can be designed with the help of particle swarm optimization algorithm, which will be s... | Design of Oscillation Controller for Camera Damping System Based on Particle Swarm Optimization | 10.1007/978-981-99-9416-8_3 |
2024-01-01 | The main task of dynamic experiments in wind tunnels is to obtain model-scale stability information of an aircraft at realistic Reynolds and Mach numbers. The forced oscillation technique is the most widely used wind tunnel technique for stability derivatives measurements. The oscillatory motion is induced to a model i... | Wind Tunnel Measurement of Pitch-Damping Derivative Using Forced Oscillation Technique | 10.1007/978-3-031-42041-2_5 |
2024-01-01 | The methods for improving the seismic performance of the structure are the increasing the strength or the ductility capacity of the structure. In order to increase the strength of the shear wall structure, there are methods to increase the cross section of the structural member as like the shear wall or beam, and incre... | Lintel Type Damping Device for Seismic Retrofit of Shear Wall Structure | 10.1007/978-981-99-6368-3_32 |
2024-01-01 | In this paper, we considered the plane problem of steady-state bending vibrations of a hinged-supported bimorph in an alternating magnetic field, considering damping. The bimorph under study consisted of a multilayer electromagnetoelastic composite modeled using the effective modulus approach. Within the framework of K... | Applied Theory of Vibrations of a Composite Electromagnetoelastic Bimorph with Damping | 10.1007/978-3-031-52239-0_34 |
2024-01-01 | Extensive research has significantly improved the vibration isolation performance of off-road vehicle seat suspensions, effectively addressing issues such as driver fatigue, and low-back pain. However, variations caused by road roughness, vehicle speed, and load can lead to stability switches and sudden events in seat ... | Improvement of vibration isolation performance of multi-mode control seat suspension system through road recognition using wavelet-LSTM approach | 10.1007/s12206-023-1210-2 |
2024-01-01 | The present study aims to investigate the effect of damping on the bifurcation characteristics of a pitch–plunge aeroelastic system subjected to dynamic stall-induced aerodynamic nonlinearities. It is observed that structural damping has a considerable impact on both the bifurcation boundaries and the response dynamics... | Effect of Damping on Bifurcation and Synchronization Behavior of an Aeroelastic System Under Dynamic Stall | 10.1007/978-981-99-5755-2_12 |
2024-01-01 | A theoretical analysis of displacement pump capacity pulsation was carried out. In a hydraulic system, capacity pulsation contributes to pressure pulsation. It has been pointed out that increased pressure pulsation affects the surroundings, including human beings, causing an increase in the noise generated into the sur... | Some Causes and Effects of Pressure Pulsation in a Hydraulic System Including the Impact on the Environment | 10.1007/978-3-031-53598-7_8 |
2024-01-01 | This article introduces a novel mechanical variable inertance-variable damping (VIVD) seat suspension based on an adaptive robust sliding-mode (ARSM) controller, including its characteristics validation and performance experiment. In this paper, a variable damping (VD) device and a flywheel are connected in series to f... | Adaptive Robust Sliding-Mode Control of a Semi-active Seat Suspension Featuring a Variable Inertance-Variable Damping Device | 10.1007/978-981-97-0554-2_10 |
2024-01-01 | The Sonic Black Holes (SBH) absorber consists a cylindrical cavity with a set of rigid thin rings. The inner diameters of the rings are gradually decreasing. The sound speed in SBH can be progressively slowed down, then the effective sound absorption performance can be obtained. In order to further improve the acoustic... | Experimental Investigation of Sound Absorption Properties of the Damped Sonic Black Holes | 10.1007/978-981-99-8861-7_28 |
2024-01-01 | Urban development has recently got the attention of the supervisor and inspector of construction. The researcher must find a method to assess the structural situation. The cables of the cable-stayed bridge are simplistically modeled to evaluate the cable tension that have been defined in this report, through the Euler ... | Evaluating Damping Model Applied for Cable Tension of Cable-Stayed Bridge | 10.1007/978-981-99-2345-8_63 |
2024-01-01 | High damping rubber bearings (HDR) are made by combining natural rubber with carbon fillers. Because of its simple structure can be easily applied to seismic isolation design and is easy to manage. Also, high damping rubber bearings are seismic isolators with excellent damping ability against earthquakes. High damping ... | Research on Hysteresis Model of High Damping Rubber Bearings Considering Mechanical Properties Based on Dynamic Loading Test | 10.1007/978-981-99-4049-3_82 |
2024-01-01 | The molten metal crane faced with high difficulty to control can be mainly attributed to the features as a typical underactuated system and liquid sloshing phenomenon is often ignored in the existing control methods. Consequently, this paper firstly establishes the multi-mass-spring-damping mechanics model of liquid sl... | Research on LPF-GSMC Control of Molten Metal Crane Based on Multi-mass-spring-damping Model | 10.1007/s12555-021-0377-5 |
2024-01-01 | The robust control method is effective in suppressing the phenomenon of low frequency oscillations (LFOs) in power systems. Aiming at the problem of LFOs in AC/DC transmission system, a coupling robust damping controller design method based on multiple input multiple output (MIMO) system model is proposed to enhance th... | Design of Coupling Robust Damping Controller for AC-DC Interconnection System | 10.1007/978-981-99-9251-5_5 |
2024-01-01 | Regenerative chatter is a common challenge in milling large and difficult-to-cut complex curved parts, which seriously affects the machining efficiency and quality. Variable pitch cutters (VPCs) and process damping are known to be effective in suppressing chatter. However, the complex multiple interactions between proc... | Dynamics modeling and simultaneous identification of force coefficients for variable pitch bull-nose cutter milling considering process damping and cutter runout | 10.1007/s00170-023-12777-0 |
2024-01-01 | The frequency equation for a cable damped at a fraction location, generally being a transcendental equation, was reformulated into an algebraic form. Based on the fundamental theorem of algebra and the characteristics of logarithmic function in the complex domain, the solution structures were revealed and several examp... | The Algebraic Frequency Equation of a Taut String Damped at a Fraction Location: Solution Structures and Properties | 10.1007/978-3-031-49723-0_21 |
2024-01-01 | The step responses of many systems to be controlled show an overshoot behavior. This is the case, for example, with active vibration damping with spring-mass systems. This document provides PID controller tables for overshooting systems. Such systems can be approximated with second-order systems. The parameters were ca... | Artificial Intelligence Algorithm for Optimizing PID Parameters to Control Weakly Damped Systems | 10.1007/978-3-031-47721-8_49 |
2024-01-01 | The prediction of fatigue life and the assessment of resistance in welded structures are crucial aspects in the field of structural and mechanical engineering, especially in the design of vehicle structures. In this paper, a three-dimensional numerical model was developed using the ANSYS software to investigate the sta... | Experiment, simulation and investigation of the effect of different parameters on the durability of welded structure under damped loads for automobile utilization | 10.1007/s12008-023-01585-1 |
2024-01-01 | Milling cutters with runout, process dampening, and variable pitch did not solve milling difficulties because they did not address the regenerative chatter mechanism. When the phase difference between two waves varies from tooth to tooth, it throws off the regeneration process. The focus of this study is on devising a ... | Numerical Simulations of the Cutting Forces in an End Milling Process with Process Damping, Tool Runout and Variable Pitch Effects | 10.1007/978-981-99-6774-2_39 |
2024-01-01 | The objective of this study is to examine the nonlinear dynamic behavior of the rod-fastening combined rotor-bearing (RFCR) system with rub-impact, with a specific focus on the influence of internal damping. A dynamic model for the RFCR system is formulated using the finite element method based on the Lagrange equation... | Nonlinear Dynamic Analysis of Rub-Impact Rod-Fastening Combined Rotor Systems with Internal Damping | 10.1007/978-981-97-0554-2_7 |
2024-01-01 | In recent decades, the most impactful effects of thermal gradients on the shear modulus of compacted soils have been increasingly well documented. The thermal repercussions on the corresponding damping ratios, however, have not been as thoroughly investigated. In this work, a series of thermo-controlled resonant column... | A Comparative Analysis of Damping Assessment Methods in Cohesive-frictional Soils via Thermo-controlled Resonant Column Testing | 10.1007/s10706-023-02578-3 |
2024-01-01 | Purpose The present investigation is devoted to providing two/three-dimensional (2D/3D) models for estimating the amount of thermoelastic damping (TED) in circular cross-sectional micro/nanorings by capturing the effects of size on thermal domain via dual-phase-lag (DPL) heat conduction model. Methods To achieve the go... | Analytical Model for Thermoelastic Damping in In-Plane Vibrations of Circular Cross-Sectional Micro/Nanorings with Dual-Phase-Lag Heat Conduction | 10.1007/s42417-023-00876-x |
2024-01-01 | The need to measure complex mechanical structures has grown in importance for efficiency in the design process and for structural monitoring. Despite the convenience of using a 3D scanning laser Doppler vibrometer (LDV), fixed acceleration sensors are still widely used for industrial applications. However, the effects ... | Parameter Investigation of Sensor Fixation Methods Compared with High-Quality Laser Measurement Using a Scalable Automatic Modal Hammer | 10.1007/978-3-031-37007-6_7 |
2024-01-01 | In power transmission lines, conductors and guard wires are subjected to different types of mechanical vibrations, such as galloping, aeolian vibrations, and in the case of conductor bundles, sub-span oscillations. In this paper, a calibrated finite element model (FEM) is developed to evaluate the dynamic response due ... | Propagation of the Uncertainty in the Dynamic Behavior of OPGW Cables Under Stochastic Wind Load | 10.1007/978-3-031-47152-0_11 |
2024-01-01 | This chapter focuses on the response of a two degree of freedom (TDOF) system. It begins with the undamped free response, damped free response and forced harmonic response of a TDOF system. These are further extended to explain working principles of vibration absorber. This chapter also covers the response of a TDOF sy... | Response of a Two Degree of Freedom System | 10.1007/978-981-99-3614-4_5 |
2024-01-01 | In recent years, magnetorheological fluid dampers have been paid more attention because of their smart nature and properties. This paper presents the mathematical background of magnetorheological fluid dampers and their use in advanced technological applications. The main objective of this paper is to delineate how to ... | Mathematical Modeling, Analysis and Simulation of MR Fluid Damper | 10.1007/978-3-031-34644-6_56 |
2024-01-01 | Purpose Elastic Ring Squeeze Film Damper (ERSFD) is normally incorporated into high-speed ball bearings to attenuate the vibration amplitude of the rotor system in aero-engines. At high rotor speeds, the bearing introduces considerable nonlinear excitation to the journal, causing it to exhibit distinct dynamic properti... | Dynamic Characteristics of Elastic Ring Squeeze Film Damper Oscillated by Bearing Contact Force | 10.1007/s42417-023-00851-6 |
2024-01-01 | Purpose Gas turbine blades are subjected to fluctuating gas forces and centrifugal forces, which result into large resonant stresses and further lead to the failure of blades. Nowadays, dry friction damping is frequently applied in gas turbines, especially at hot locations, to reduce resonant stresses. The novelty of t... | Parametric Evaluation and Dynamic Analysis of Turbine Blades–Damper Assembly Using Bond Graph Technique | 10.1007/s42417-023-00867-y |
2024-01-01 | Tuned Liquid Dampers (TLDs) are dissipative devices whose distinguished features like low cost in installation and maintenance or their multidirectional and multifrequency application to new and already existing structures make them an attractive damping option. Their working principle is similar to that of a Tuned Mas... | Magnetic Fields to Enhance Tuned Liquid Damper Performance for Vibration Control: A Review | 10.1007/s11831-023-09971-4 |
2024-01-01 | The paper reviews some recent results of the authors’ research group related to the modeling of the hysteretic behaviour of metallic stranded cables and applies them to the definition of a theoretical model for the self-damping of a widespread typology of overhead electrical line conductors, namely the ACSR conductors.... | On the Modeling of Self-damping in Overhead Electrical Line Conductors Subject to Vortex-Induced Vibrations | 10.1007/978-3-031-53059-3_16 |
2024-01-01 | Cork composites, which are made from natural cork with other materials to increase their performance, have recently been considered for vibration damping applications. This chapter provides an overview of cork composites, emphasizing their structure, properties, manufacturing methods, and applications. We also present ... | Vibration Damping Applications with Cork Composites | 10.1007/978-3-031-51564-4_4 |
2024-01-01 | An estimate of MHD stability MHD stability is an important criterion when attempting to increase the aluminium reduction cell Aluminium reduction cell efficiency. The MHD stability MHD stability is achieved by optimizing the magnetic field Magnetic field and the electric current distribution Current distribution in the... | MHD Stability of Aluminium Cells—Cathode Design Effects | 10.1007/978-3-031-50308-5_94 |
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