publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2023-01-01 | Energy dissipation devices are usually used to absorb or consume a portion of input energy from earthquake or wind, for reducing the structural response and to protect structural members. Steel Slit Shear Wall SSSW is one type of metallic damper having advantages of better ductility, easier installation and repair and ... | Study on Steel Slit Shear Walls with Different Characteristics of Hysteretic Behavior | 10.1007/978-3-031-12011-4_41 |
2023-01-01 | Current trends in the construction industry demand taller and lighter structures, which are also more flexible. Tuned liquid dampers (TLDs) are a relatively newer concept that can be used to reduce wind or seismic induced vibrations prevalent in these structures. TLD is essentially a liquid filled tank that uses liquid... | A Study on the Effect of Tank Shape on the Performance of Tuned Liquid Dampers | 10.1007/978-981-19-3371-4_21 |
2023-01-01 | Modern machining processes have been rapidly evolving into much more sophisticated forms. However, even with such sophistication in hand, the effect of chatter remains to be a significant problem. To date, engineers keep referring to the traditional chatter stability lobe to address the problem of limiting themselves i... | Analysis of the Reduction of Vibration and Chatter Effect in Boring Process Due to the Addition of Spring Radial Vibration Damper (SRVD) on the Workpiece | 10.1007/978-981-19-0867-5_8 |
2023-01-01 | Moisture is one of the main factors affecting the insulation performance of transformer oil paper in operation, and it is of great engineering value to carry out diagnostic analysis of the moisture state of the paper. In order to study the partial discharge characteristics of oil-impregnated paper after dampness, this ... | Partial Discharge Characteristics of Damp Oil-Immersed Paper Under Combined AC and DC Voltage | 10.1007/978-981-99-1576-7_19 |
2023-01-01 | In the energy-based approach the effect of the earthquake on the structures is characterized in terms of an energy input and a its proper estimation is of key importance. This energy input, E _ I , flows into the structure and is partially dissipated through the inherent mechanism of damping of the structure, W _ ξ , a... | Experimental Assessment of the Energy that Contributes to Damage | 10.1007/978-3-031-36562-1_10 |
2023-01-01 | The inelastic response of structural components and systems is typically used in seismically active locations to dissipate the energy that an earthquake imparts to a structure. Response spectra are frequently used to assess how seismic waves affect structures built with civil engineering. As the effect of seismic waves... | Optimising Structures for Earthquake Impact in Seismic Prone Zone | 10.1007/978-981-99-1886-7_36 |
2023-01-01 | Protection of structures to frequently occurring earthquake has been an active area of research due to devastating effects of an earthquake. Energy-dissipating devices undergoing inelastic deformation have been developed and implemented successfully for protection of various types of structures. The present paper aims ... | Parameter Study on ADAS Metallic Damper | 10.1007/978-981-99-1608-5_47 |
2023-01-01 | The seismic response of a five-storey building with soil-structure interaction (SSI) utilising semi-active tuned mass damper (SATMD) is obtained. A magneto-rheological (MR) damper with friction type damping scheme is used alongside a tuned mass damper to constitute a semi-active tuned mass damper. To study the effect o... | Effect of Semi-active Tuned Mass Damper on Seismic Response of Structure with Soil-Structure Interaction | 10.1007/978-981-99-1608-5_24 |
2023-01-01 | This paper deals with the modelling and simulation of magneto-rheological fluid in a damper using COMSOL software. MR dampers provide an edge over air or hydraulic dampers due to their variable viscous damping properties, which can be controlled with a magnetic field. This continuous controllability allows the MR dampe... | Modelling and Simulation of Magneto-rheological Fluid in a Damper Using COMSOL | 10.1007/978-981-99-1288-9_48 |
2023-01-01 | This report presents the application of a Tuned-Mass Damper system to effectively reduce external vibrations experienced by the driver, caused by the random vibrations of the track conditions. The aim of this study is to investigate the impact of a tuned mass-damper (TMD) system on external vibrations endured by a vehi... | Investigation of the Effect of Tuned Mass-Damper System on the External Vibrations Endured by a Vehicle | 10.2991/978-94-6463-252-1_105 |
2023-01-01 | This paper proposes analytical solutions of the mass-spring-damper systems described by conformable fractional differential transform method. Conformable fractional transform method is based on new relation between fractional calculus and calculus based on basic limit definition were used. The behaviors of the analytic... | Fractional Mass-Spring-Damper System Described by Conformable Fractional Differential Transform Method | 10.1007/978-3-031-15758-5_12 |
2023-01-01 | With the development of high-speed rail, the requirements for control the motion of rail vehicle bogies are increasing. The chassis setting is responsible for the safety and comfort of the vehicle. The main problem is the conflict of the damping requirements for different driving modes. On one hand, it is necessary to ... | Mechatronically Controlled Bogie of High Speed Train | 10.2991/978-94-6463-182-1_30 |
2023-01-01 | In this paper, a damped one degree-of-freedom system equipped with a friction dynamic vibration absorber is considered. The optimal parameters: tuning frequency ratio and friction slip load are derived for various excitations: harmonic force, random force, harmonic base acceleration, and random base acceleration. The r... | Explicit Formulas for Optimal Parameters of Friction Dynamic Vibration Absorber Attached to a Damped System Under Various Excitations | 10.1007/s42417-022-00560-6 |
2023-01-01 | Energy exchange takes place between turbine and generator in the power system during subsynchronous resonance (SSR) which leads to torsional interaction between the shafts. Resonance in the power system is caused by the series capacitors connected to the transmission line. This paper aims to present an electromechanica... | Experimental Investigations on Turbine-Generator Shaft Under Subsynchronous Resonance | 10.1007/978-981-19-7753-4_53 |
2023-01-01 | Many studies have been conducted on energy dissipation walls for small houses to improve the earthquake resistance of structures in Japan. Oil dampers, a main damper, is installed in studs to increase their strength. However, this method tends to deform each member and joint—“support members”—owing to tensile force, an... | Development of Energy Dissipation Walls with Oil Dampers and Totally Reinforced Support Members Using Pre-stress | 10.1007/978-981-19-7331-4_10 |
2023-01-01 | Tuned liquid damping devices are a low-cost, passive control system that does not require an external energy source and is effective in damping the dynamic vibrations of structures. Tuning the damper tank geometry and device parameters is important in optimizing the efficiency to be obtained from the control. In this s... | Design Optimization of Tuned Liquid Dampers with Hybrid Algorithms | 10.1007/978-3-031-50151-7_19 |
2023-01-01 | The usage of the passive energy dissipative system is increasing nowadays in the high seismic risk zones, particularly in the important buildings. In this context, the effectiveness of the nonlinear fluid viscous dampers (FVDs) in the seismic performance enhancement of RC buildings is analysed in this study. This resea... | Effectiveness of fluid viscous dampers in the seismic performance enhancement of RC buildings | 10.1007/s42107-022-00504-1 |
2023-01-01 | The idea of a tuned mass damper emerges due to a common vibration problem existed in mechanical and civil structures applications. Vibration turns out to be a hazard that can reduce the life of the structure, thus tuned mass damper is considered as one of the most practical methods in the engineering branches since it ... | Finite Element Analysis of Tuned Mass Damper | 10.1007/978-981-19-4425-3_25 |
2023-01-01 | The work presents a novel Prestressed LEad Damper with Straight Shaft (PS-LED), which incorporates several desirable characteristics, namely high stiffness and damping capability in a compact design, and low manufacturing cost, which make it suitable for social housing. The device provides a resistive force by the fric... | Modelling of a Novel Lead Damper and Application to an Existing RC Structure | 10.1007/978-3-031-30125-4_5 |
2023-01-01 | Stockbridge dampers are the most widely used in wind induced vibration control of overhead power transmission lines. This dynamic absorber comprises a carrier cable with a mass at each end and a bolted clamp that can be attached to a conductor or a guard wire, with the purpose of supplementing the energy dissipated by ... | Bayesian Inversion of a Non-linear Dynamic Model for Stockbridge Dampers | 10.1007/978-3-031-38563-6_1 |
2023-01-01 | The rotor-bearing-squeeze film damper coupling (RBSC) system is the core part of aero-engines, determining operation safety and reliability. The dynamic behavior of the RBSC system is easily affected by the bearing outer race localized defect, which is difficult to identify accurately. Inappropriate dynamic analysis of... | Dynamic Behavior Analysis of a Rotor-Bearing-Squeeze Film Damper Coupling System with Bearing Outer Race Localized Defect | 10.1007/978-3-031-07322-9_51 |
2023-01-01 | For the offshore platform located in an active fault zone, earthquakes are a significant additional burden to the wave load. When mining and producing resources from the ocean, jacket platforms are frequently exposed to a variety of environmental stresses, including waves, strong winds, earthquakes, tsunamis, etc. Jack... | Seismic Vibration Control of Jacket Platform with the Aid of Tuned Liquid Dampers | 10.1007/978-981-99-1608-5_8 |
2023-01-01 | In this work, optimum parameters of the tuned inerter damper (TID) are obtained using equal eigenvalue (EEV) criterion. Performance of this TID is compared with that of other optimum TID available in the literature. EEV criteria are loading independent, whereas other criteria available in the literature are loading dep... | Optimum Parameters for Tuned Inerter Damper | 10.1007/978-981-99-1608-5_34 |
2023-01-01 | In this section, as well as explaining the building control systems and their properties, the displacement and acceleration values were found in the case that TMD is not used and TMD is placed, according to the earthquake record that affects the building most negatively, by affecting past earthquake records on the si... | Structural Control Systems and Tuned Mass Damper Optimization by Using Jaya and Hybrid Algorithms | 10.1007/978-3-031-34728-3_6 |
2023-01-01 | Damper failures are generally brittle mechanisms, which can compromise the capacity of the structure to withstand the seismic action, leading to a lack of robustness of the overall system. The brittle failure is due to the attainment of the maximum force capacity, because of end-stroke impacts, which causes an arising ... | The Brittle Failure of Fluid Viscous Dampers and the Related Consequences on the Reliability of a Medium-Rise Steel Building | 10.1007/978-3-031-21187-4_83 |
2022-12-30 | In this paper, we consider semilinear wave equations with critical power and scale invariant damping term $$2(1+t)^{-1}u_{t}$$ 2 ( 1 + t ) - 1 u t in exterior domain in high dimensions ( $$n\ge 3$$ n ≥ 3 ). Upper bound lifespan estimates of solution are established by employing test function method. The novelty is that... | Lifespan estimates for critical semilinear wave equations and scale invariant damped wave equations in exterior domain in high dimensions | 10.1007/s00028-022-00857-9 |
2022-12-26 | In this study, a half-space 13-degree-of-freedom vehicle model, a double track model, and a train-bridge interaction model were integrated to form a combined people-train-rail-bridge interaction model to analyze the vertical Sperling index of the train body and passengers as realistically as possible. In this bigger, m... | Dynamic Train Vertical Sperling Index Evaluation Model Considering Wheel-Rail Contact Loss | 10.1007/s12204-022-2551-1 |
2022-12-26 | We analyse the evolution of a generalized bosonic oscillator in the near horizon geometry of the BTZ black hole by analytically obtaining a solution of the associated Klein–Gordon equation. We show that it is possible to obtain relativistic frequency expression in closed-form for the system in question. Here, we observ... | Damped modes for a bosonic quantum oscillator in the near-horizon geometry of the BTZ black hole | 10.1007/s10714-022-03058-4 |
2022-12-19 | In this paper, we discuss the asymptotic stability as well as the wellposedness of the viscoelastic damped wave equation posed on a bounded domain $$\Omega $$ Ω of $${\mathbb {R}}^2,$$ R 2 , $$\begin{aligned} \partial _{t}^2u - \Delta u+ \displaystyle \int _0^\infty g(s)\hbox {div}[a(x)\nabla u(\cdot ,t-s)]\,\mathrm{{d... | Exponential Stability for the 2D Wave Model with Localized Memory in a Past History Framework and Nonlinearity of Arbitrary Growth | 10.1007/s12220-022-01085-w |
2022-12-16 | The modal parameters identification of bridges under non-stationary environmental excitation has caught the attention of researchers. This paper studies the non-stationarity of wind velocity, and extracts the time-varying mean wind velocity based on a discrete wavelet transform and recursive quantitative analysis. The ... | Identification of modal parameters of long-span bridges under various wind velocities | 10.1186/s43251-022-00071-0 |
2022-12-16 | In a Hilbert setting, we study the convergence properties of the second order in time dynamical system combining viscous and Hessian-driven damping with time scaling in relation to the minimization of a nonsmooth and convex function. The system is formulated in terms of the gradient of the Moreau envelope of the object... | A fast continuous time approach with time scaling for nonsmooth convex optimization | 10.1186/s13662-022-03744-2 |
2022-12-02 | A multilevel design toolchain is used for the development of particle dampers for vertical transient vibrating structures. Thereby various experimental tests and numerical models are combined. The design toolchain consists of three levels. The first level deals with the micro-mechanical behavior of single particle–part... | Systematic design of particle dampers for transient vertical vibrations | 10.1007/s10035-022-01290-y |
2022-12-01 | Conventional and earlier versions of the cyclic simple shear tests employed specimens confined within stacked rings or wire reinforced membranes or rigid boundary platens. A new type of cyclic simple shear where the specimens are tested within the confines of a flexible membrane as in the case of the conventional cycli... | A review of cyclic simple shear test on soils: challenges and new solutions | 10.1007/s12572-022-00321-4 |
2022-12-01 | This paper compared the mechanical properties and damping capacity of homogeneous welded joints of Mn-36Cu-3Al-2Zn-2Ni-2Fe (wt.%) cast damping alloy by pulsed and non-pulsed current TIG welding. The results show that the pulsed current makes the microstructure finer in the welded seam due to its rapid solidification of... | Increase in Mechanical Properties and Damping Capacity of a Cast Mn-Cu Damping Alloy Welded Joint by Pulsed Current TIG Welding | 10.1007/s11665-022-07001-1 |
2022-12-01 | It is widely known that a coupled system of nonlinear wave equations with a polynomial nonlinearity can be stabilized by a frictional damping or by a viscoelastic one under some restrictive conditions. In this paper, we study the asymptotic behavior of coupled system of nonlinear wave equations with a damping of fracti... | Well-Posedness and a Blow up Result for a Fractionally Damped Coupled System | 10.1007/s40840-022-01405-x |
2022-12-01 | In this article, a new class of stochastic exponential Runge-Kutta (SERK) methods is developed for solving stochastic differential equations. The proposed SERK methods can preserve conformal quadratic invariants and conformal symplectic structure automatically under certain coefficient conditions. Stochastic B-series t... | A new class of structure-preserving stochastic exponential Runge-Kutta integrators for stochastic differential equations | 10.1007/s10543-022-00924-0 |
2022-12-01 | Abstract The problem of active damping of cylindrical shell vibrations with free boundary conditions is considered. The shell is supported by rings. An example of the identification of the source and damping of bending vibrations of a shell is presented. | Problem of the Active Damping of Cylindrical Shell Vibrations by Discrete Forces | 10.3103/S1052618822080131 |
2022-12-01 | Abstract In this paper, we are concerned with the stabilization of a laminated beam with one discontinuous local internal fractional damping. We reformulate the system into an augmented model and prove the well-posedness of it by using semigroup method. Based on a general criteria of Arendt-Batty, we show that the syst... | Polynomial Stability of the Laminated Beam with One Discontinuous Local Internal Fractional Damping | 10.3103/S0025654422060024 |
2022-12-01 | Ink transfer is achieved by the squeezing and rotation of two rollers, one of which is a roller coated with a viscoelastic rubber layer. In this study, the force caused by ink hydrodynamic pressure on the rubber roller during the rotation is considered, the viscoelasticity of ink and rubber is equivalently substituted ... | Deformation of the ink roller of an offset press based on a simplified model of ink-rubber viscoelasticity | 10.1007/s12206-022-1119-1 |
2022-12-01 | In this article, a quasi-3D trigonometric shear deformation plate theory is utilized to study the vibration response of an advanced cross-ply multilayered composite plate that contains a homogenous core and viscoelastic faces subjected to a hygrothermal loading and embedded in a viscoelastic foundation. Two actuating l... | Hygrothermal vibration of a cross-ply composite plate with magnetostrictive layers, viscoelastic faces, and a homogeneous core | 10.1007/s00366-021-01482-9 |
2022-12-01 | The functioning of adjoining similar two-degree-of-freedom structures interconnected by lead damper under random excitation is investigated. The governing equation of motion of the interconnected structure is derived, and responses (displacement and acceleration) are incurred. The response mitigation effectuality of le... | Response control of adjoining similar structures interconnected by lead damper | 10.1007/s42107-022-00477-1 |
2022-12-01 | Abstract A mathematical model is derived for a two-chamber pneumatic suspension with internal air damping. The vibrational damping properties of the suspension are studied theoretically and experimentally. | Two-Chamber Pneumatic Suspension with Air Damping | 10.3103/S1068798X22120103 |
2022-12-01 | We prove that, under a suitable integrable condition, there is global stability of strong solutions for the 3D incompressible Navier–Stokes equations with a damping term which, consequently, provides a new class of global strong large solutions. Besides this, we prove that the system preserves helical symmetry and that... | Global stability of solutions with large initial conditions for the Navier–Stokes equations with damping | 10.1007/s40863-022-00298-9 |
2022-12-01 | A reaction–diffusion approximation is a method that solutions of multi-component reaction–diffusion systems approximate those of differential equations. We introduce the reaction–diffusion approximations of a semilinear wave equation and a semilinear damped wave equation under some assumptions of a reaction term. These... | A reaction–diffusion approximation of a semilinear wave equation with damping | 10.1007/s13160-022-00536-9 |
2022-12-01 | Abstract The review summarizes the theoretical and numerical results of analysis of the dispersion equation of standing waves on the surface of a viscous liquid published by L.N. Sretensky in 1941. A mechanism for the viscous regularization of wave motion is proposed, according to which the effects observed in the expe... | Standing Gravity Waves on the Surface of a Viscous Liquid | 10.1134/S0015462822070059 |
2022-12-01 | The response behavior of adjoining similar structures interconnected by friction dampers and subjected to non-stationary and stationary random excitations is studied. The response mitigation efficacy of friction damper is assessed by analyzing the adjoining interconnected structures using Monte Carlo simulation. The cl... | Response Control of Adjoining Similar Structures Interconnected with Friction Dampers | 10.1007/s40030-022-00662-0 |
2022-12-01 | The present work deals with the study of the damping capacity of β-metastable Ti–(24–26) Nb alloys. In this work, several methods have been used to characterize this damping. The impact tests were carried out using two test benches: high-speed impacts were carried out using a vertical firing pressure gun and low-veloci... | Damping Capacity of Ti–Nb Shape Memory Alloys Evaluated Through DMA and Single-Impact Tests | 10.1007/s40830-022-00398-7 |
2022-12-01 | Abstract The study compares seismic hazard assessments of the territory of Uzbekistan, obtained with the same input parameters, but using different methodological approaches: the Riznichenko approach based on the theory of macroseismic and spectral-time shaking and the classical Cornell probabilistic approach based on ... | Comparison of Seismic Hazard Assessments Obtained with the Probabilistic and Probabilistic-Deterministic Approaches for the Territory of Uzbekistan | 10.3103/S0747923922070040 |
2022-12-01 | In this work, a new class of iron-based high entropy shape memory alloys (HE-SMAs) have been designed, characterized, and optimized. These FeCuNiMnV alloys (FeMn-like) with damping properties at low and high temperatures are developed; a methodology is proposed to demonstrate how to preserve this effect from the memory... | Damping Behavior in a Wide Temperature Range of FeMn-Like High Entropy Shape Memory Alloys | 10.1007/s40830-022-00381-2 |
2022-12-01 | Stretchers are required whenever a life-threatening accident occurs. A patient’s journey from the place of accident to the hospital is a very critical factor in saving the patient life. The patient’s journey in the ambulance comes with vibrations occurring now and then which may cause the patient unnecessary pain and e... | Design and Analysis of Stabilizing Ambulance Stretcher | 10.1007/s41403-022-00356-w |
2022-12-01 | Supercritical transmission shafts—those which have one or more critical speeds below their operation speeds—are becoming more popular in new armored vehicle and rotorcraft designs. To suppress the excessive transcritical vibration, dry friction damper is a prevailing choice. In this paper, we focus on the nonlinear dyn... | Nonlinear dynamics and stability analysis of dry friction damper for supercritical transmission shaft | 10.1007/s11071-022-07795-8 |
2022-12-01 | Filling layer self-compacting concrete (FLSCC) is an essential material used in the construction of China Rail Track System type III (CRTS III) slab track of high-speed rail. The mechanical properties of the filling layer are of paramount significance to the performance and serviceability of the track system. In this s... | Evaluation of the Influence of Asphalt Emulsion on the Strength, Durability, and Damping Performance of Filling Layer Self-Compacting Concrete | 10.1007/s12205-022-0155-9 |
2022-12-01 | Dynamic positioning (DP) for station-keeping control keeps the position and heading of the vessel constant regardless of environmental disturbances from wind, waves and currents. If the point of interest on the vessel has a significant vertical offset, it will be influenced also by the roll, pitch and heave motions. Al... | On compensation for wave-induced roll in dynamic positioning control | 10.1007/s00773-022-00906-5 |
2022-12-01 | A new optimal control approach is presented for designing and controlling inelastic lateral load resisting systems. This paper uses the technique to develop a seismic retrofit procedure for inelastic shear-type resisting systems with stiffness changes and nonlinear fluid viscous dampers (FVDs). Generally, optimal contr... | Reversed optimal control approach for seismic retrofitting of inelastic lateral load resisting systems | 10.1007/s40435-022-00939-z |
2022-12-01 | In the global optimization process of the firefly algorithm (FA), there is a need to provide a fast convergence rate and to explore the search space more effectively. Therefore, we conduct modular analysis of the FA and propose a novel enhanced exploration firefly algorithm (EE-FA), which includes an enhanced attractiv... | A novel enhanced exploration firefly algorithm for global continuous optimization problems | 10.1007/s00366-021-01477-6 |
2022-12-01 | The dynamic behaviour of unsaturated sand rubber chips mixtures at various gravimetric contents is evaluated through an experimental study comprising resonant column tests in a fixed-free device. Chips were irregularly shaped with dimensions ranging from 5 to 14 mm. Three types of sand with different gradation have bee... | Resonant Column Tests on Mixtures of Different Sands with Coarse Tyre Rubber Chips | 10.1007/s10706-022-02244-0 |
2022-12-01 | Abstract The influence of internal dissipative forces on rotational motion of a satellite in an elliptical orbit is studied in the context of the Lavrent’ev model. Evolution equations describing plane non-resonant rotations of the satellite are obtained. The conditions of existence and stability of plane resonant rotat... | On the Plane Resonant Rotations of a Satellite with a Spherical Damper in an Elliptical Orbit | 10.3103/S0025654422070044 |
2022-12-01 | In this paper, magneto-rheological (MR) dampers are designed optimally for different control objectives by considering different distributions for dampers within structure stories. The modified Bouc–Wen model is used to model the MR dampers. For investigating the control algorithm efficiency in determining the dampers’... | Optimal Design of MR Dampers by Considering Design Criteria and Dampers Distribution Effect | 10.1007/s40996-022-00945-3 |
2022-12-01 | The aim of the paper is to study the problem $$\begin{aligned} {\left\{ \begin{array}{ll} u_{tt}+du_t-c^2\Delta u=0 \qquad &{}\text {in}\, {\mathbb {R}}\times \Omega ,\\ \mu v_{tt}- \textrm{div}_\Gamma (\sigma \nabla _\Gamma v)+\delta v_t+\kappa v+\rho u_t =0\qquad &{}\text {on}\, {\mathbb {R}}\times \Gamma _1,\\ v_t =... | The damped wave equation with acoustic boundary conditions and non-locally reacting surfaces | 10.1007/s00233-022-10319-w |
2022-12-01 | Abstract The issues of optimal damping of oscillations of the simplest nonlinear mechanical system, a mathematical pendulum, are considered. A parameter to be optimized is the dimensionless dissipative viscosity friction coefficient at the pendulum pivot point. Detailed optimization criteria are given, which are used i... | Optimization of the Damping of Nonlinear Pendulum Oscillations | 10.3103/S1052618822090175 |
2022-12-01 | Combining a multi-stage circumferential flow mode in external valves, novel magnetorheological (MR) dampers have been devised by authors. For characterizing specific advantages generated by the combination of metal materials, magnetic field, non-Newton fluid and structure issues, a composite method including mathematic... | Design and modelling methodology for a new magnetorheological damper featuring a multi-stage circumferential flow mode | 10.1007/s10999-022-09607-8 |
2022-12-01 | Abstract This article considers a fundamentally new type of vibration protection devices for improving the reliability of overhead power lines, a magnetorheological damper. The calculation of the magnetorheological damper includes calculation of the mechanical, electromagnetic, magnetorheological, and damping subsystem... | Calculation of a Magnetorheological Damper for Protection of Towers and Fittings of Overhead Power Lines | 10.3103/S1052618822090047 |
2022-12-01 | The modified Korteweg-de Vries equation (for short, mKdV) models the propagation of nonlinear water waves in the shallow water approximation. We consider the weakly damped and forced mKdV under the periodic boundary condition. We often study mKdV equation by using the Miura transformation, which converts solutions of m... | Global attractor for weakly damped, forced mKdV equation in low regularity spaces | 10.1007/s40863-020-00207-y |
2022-12-01 | The working environment for agricultural machinery is complex and variable. Some weak characteristic damped oscillation signals are extremely difficult to extract and analyze because of their long-term operation in a strong noise environment. The vibration resonance (VR) phenomenon of a second-order Duffing bistable sy... | Detecting the weak damped oscillation signal in the agricultural machinery working environment by vibrational resonance in the duffing system | 10.1007/s12206-022-1109-3 |
2022-12-01 | Different techniques are used to decrease structural responses under earthquakes. Base isolation system is a passive technique which reduces relative displacement and acceleration of the structure, simultaneously. However, it sometimes increases the absolute displacement. Using active control force in the isolated syst... | The Effects of MTMD and HBI on the Performance of a Benchmark Building Against Near-Field Earthquakes Using Fuzzy Logic | 10.1007/s40996-022-00872-3 |
2022-11-28 | AN innovative amplified viscously damped outrigger (AVDO) is newly proposed to improve the seismic damping effect of conventional viscousl damped outrigger (VDO) on super high-rise structures by mechanically increasing the displacement of the viscous damper (VD). To investigate the advantages of the damping effect on A... | Investigation on seismic damping effect of an innovative amplified viscously damped outrigger for super high-rise structures | 10.1007/s43452-022-00574-7 |
2022-11-18 | Despite the long history of human treatments with the electromagnetic field, the topic has numerous unclear processes. Especially only a few investigations are devoted to the immune effects of the bioelectromagnetic interactions. Our recent review collects proven pieces of evidence of the immune-supportive activity of ... | Immunogenic Effect of Modulated Electro-hyperthermia (mEHT) in Solid Tumors | 10.1007/16833_2022_74 |
2022-11-18 | Recent developments have demonstrated that the brake pedal simulator (BPS) is becoming an indispensable apparatus for the break-by-wire systems in future electric vehicles. Its main function is to provide the driver with a comfortable pedal feel to improve braking safety and comfort. This paper presents the development... | Development and Control of a Magnetorheological Damper-Based Brake Pedal Simulator for Vehicle Brake-by-Wire Systems | 10.1186/s10033-022-00809-x |
2022-11-16 | The energy of a mechanical system as well as other invariants can be obtained using a complementary variable formulation. This approach is extended here to systems with a dissipative force. The damping coefficient depends linearly on the velocity, but is allowed to have an arbitrary time dependence. An invariant $$Q_{0... | Energy exchange in the dissipative time-dependent harmonic oscillator: Physical interpretation of the Ermakov invariant | 10.1007/s12043-022-02470-4 |
2022-11-07 | This paper is concerned with the multi-dimensional compressible Euler equations with time-dependent damping of the form $$-\frac{\mu }{(1+t)^\lambda }\rho {\varvec{u}}$$ - μ ( 1 + t ) λ ρ u in $${\mathbb {R}}^n$$ R n , where $$n\ge 2$$ n ≥ 2 , $$\mu >0$$ μ > 0 , and $$\lambda \in [0,1)$$ λ ∈ [ 0 , 1 ) . When $$\lambda ... | Optimal Decay Rates of the Compressible Euler Equations with Time-Dependent Damping in
$${\mathbb {R}}^n$$
R
n
... | 10.1007/s00332-022-09865-y |
2022-11-07 | We study the stabilization and the wellposedness of solutions of the wave equation with subcritical semilinearities and locally distributed nonlinear dissipation. The novelty of this paper is that we deal with the difficulty that the main equation does not have good nonlinear structure amenable to a direct proof of a p... | Decay Rate Estimates for the Wave Equation with Subcritical Semilinearities and Locally Distributed Nonlinear Dissipation | 10.1007/s00245-022-09918-4 |
2022-11-01 | Background The background of this work is the classification of the broadband properties of particle dampers (PDs). This broadband characteristic has experienced little systematic investigation in experiments. Objective So the primary objective of this paper is to find a measure to quantify the broadband damping proper... | Broadband Damping Properties of Particle Dampers Mounted to Dynamic Structures | 10.1007/s11340-022-00882-2 |
2022-11-01 | Magnetically optimization of mini-MR damper with focused on MR fluid properties and damper construction is investigated using dissipative particle dynamics method as a molecular scale modeling technique. To select a suitable MR fluid, the effect of diameter and weight of magnetic particles on damping force of 10 N as s... | Dissipative particle dynamics modeling of MR fluid flow in a novel magnetically optimized mini-MR damper | 10.1007/s13367-022-00037-8 |
2022-11-01 | The effect of the container’s configuration on the performance of particle dampers is investigated considering different levels of random excitation. A single-story structure with low fundamental frequency with an attached particle damper was used for the experimental investigation. In all experiments, the same particl... | Effects of the Design Configuration on the Performance of Compartmental Particle Dampers | 10.1007/s40999-022-00739-8 |
2022-11-01 | In this paper, we are concerned with the asymptotic behavior of L ^∞ weak-entropy solutions to the compressible Euler equations with a vacuum and time-dependent damping $$ - \frac{m}{{{{(1 + t)}^\lambda }}}$$ . As $$\lambda \in (0,\tfrac{1}{7}]$$ , we prove that the L ^∞ weak-entropy solution converges to the nonlinear... | L^2-convergence to nonlinear diffusion waves for Euler equations with time-dependent damping | 10.1007/s10473-022-0618-6 |
2022-11-01 | This paper considers a two-dimensional frictionally constrained joint to investigate the interfacial characteristics under periodic loadings with phase variations. Joints are pressed in contact by normal pressure, subjecting to tangential loading and bending moment. The tendency of contact behavior at the steady-state ... | Effect of relative phase of periodic loading on frictionally constrained joints | 10.1007/s12206-022-1004-y |
2022-11-01 | The literature, both scientific and commercial, already reports a large number of papers dealing with the dynamic properties of sports racquets and their influence on possible injuries caused to athletes. In particular, tennis players can suffer for the so called “tennis elbow” which is believed to depend also on the d... | Experimental and numerical analysis of damping properties of tennis racquets | 10.1007/s11012-022-01601-w |
2022-11-01 | This paper primarily focuses on evaluation and adjustment methods for small signal analysis with wind farm integration. The connection of wind farms may affect the original oscillation modes of the system, and may also introduce new oscillation modes. To ensure the security and stability of the system, it is necessary ... | Evaluation and Adjustment Based on Broad Learning System for Small Signal Stability Analysis of Power System Integrated with Wind Farms | 10.1007/s42835-022-01111-5 |
2022-11-01 | We study the existence of fast homoclinic orbits for the following damped vibration system $$\ddot{u}(t)+q(t)\dot{u}(t)+\nabla V(t,u(t))=0$$ u ¨ ( t ) + q ( t ) u ˙ ( t ) + ∇ V ( t , u ( t ) ) = 0 ; where $$q\in C(\mathbb {R},\mathbb {R})$$ q ∈ C ( R , R ) and $$V\in C^{1}(\mathbb {R}\times \mathbb {R}^{N},\mathbb {R})... | Fast homoclinic orbits for a class of damped vibration systems | 10.1007/s11587-020-00534-4 |
2022-11-01 | The microstructure and mechanical properties of a material are influenced by their fabrication method. This paper addresses how the fabrication process influences the damping behavior of pure aluminum. The samples were fabricated using two routes: powder metallurgy (PM) and casting (CT). Powder mixing, compacting, and ... | Powder Metallurgy versus Casting: Damping Behavior of Pure Aluminum | 10.1007/s11665-022-06886-2 |
2022-11-01 | The design of thermoelastic damping (TED) affected by the phase-lagging non-Fourier heat conduction effects becomes significant but challenging for enlarging the quality factor of widely-used microresonators operating in extreme situations, including ultra-high excitation frequency and ultra-low working temperature. Ho... | Rational design of thermoelastic damping in microresonators with phase-lagging heat conduction law | 10.1007/s10483-022-2914-5 |
2022-11-01 | The propagation of normal waves in a prestrained incompressible half-space interacting with a layer of a viscous compressible fluid is studied. The study is based on the three-dimensional linearized equations of elasticity for the incompressible elastic half-space and the three-dimensional linearized Navier–Stokes equa... | Effect of a Viscous Compressible Liquid Layer on the Surface Instability of an Incompressible Elastic Half-Space with Finite Prestrains | 10.1007/s10778-023-01189-y |
2022-11-01 | Background Electromagnetic damper (EMD), which is regarded as an emerging type of damper, has drawn wide attention in vibration control fields. One of the main challenges of EMD is the design of controllers, many of which have adopted some unmeasured signals and have ignored the system's disturbance. Purpose To fill th... | Vibration Control of Electromagnetic Damper System Based on State Observer and Disturbance Compensation | 10.1007/s42417-022-00545-5 |
2022-11-01 | Linear mixed-effects models are commonly used when multiple correlated measurements are made for each unit of interest. Some inherent features of these data can make the analysis challenging, such as when the series of responses are repeatedly collected for each subject at irregular intervals over time or when the data... | Finite Mixture of Censored Linear Mixed Models for Irregularly Observed Longitudinal Data | 10.1007/s00357-022-09415-x |
2022-11-01 | The behavior of mechanical network consisting of discontinuous damped system oscillators elastically coupled with strong irrational nonlinearities, excited at one of its end by the modulated signal, is investigated. By using the Newton second law, the set of discrete damped equations governing the dynamics of this netw... | Stability of modulated signals in the damped mechanical network of discontinuous coupled system oscillators with irrational nonlinearities | 10.1007/s00419-022-02259-2 |
2022-11-01 | Dual-volume Helmholtz dampers with two resonant frequencies are proposed to simultaneously attenuate longitudinal and azimuthal thermo-acoustic instabilities in annular combustors. Thermo-acoustic instabilities in a swirled annular combustor equipped with dual-volume dampers are numerically investigated by the Helmholt... | Impact of Dual-Volume Helmholtz Dampers on Longitudinal and Azimuthal Thermo-Acoustic Instabilities in an Annular Combustor | 10.1007/s11630-022-1692-8 |
2022-11-01 | Purpose Among diverse Pattern Recognition Receptors (PRRs), Toll-like receptor-4 (TLR-4) is a key urothelial trigger for innate immune response impacting urothelial bladder carcinoma (BC). Androgen activation promotes immunotolerance, playing an immunoregulatory role by unknown mechanisms. We explored the castration im... | Castration immunoregulates toll-like receptor-4 in male bladder cancer | 10.1007/s11255-022-03336-9 |
2022-11-01 | The main goal of this study is to look at the motion of a damped two degrees-of-freedom (DOF) auto-parametric dynamical system. Lagrange’s equations are used to derive the governing equations of motion (EOM). Up to a good desired order, the approximate solutions are achieved utilizing the method of multiple scales (MMS... | On the solutions and stability for an auto-parametric dynamical system | 10.1007/s00419-022-02235-w |
2022-10-29 | In this paper, we investigate the direct and indirect stability of locally coupled wave equations with local viscous damping on cylindrical and non-regular domains without any geometric control condition. If only one equation is damped, we prove that the energy of our system decays polynomially with the rate $$t^{-\fra... | Stabilization of Coupled Wave Equations with Viscous Damping on Cylindrical and Non-regular Domains: Cases Without the Geometric Control Condition | 10.1007/s00009-022-02164-6 |
2022-10-25 | In this paper, we investigate the stabilization of a system of piezoelectric beams under (Coleman or Pipkin)–Gurtin thermal law with magnetic effect. First, we study the piezoelectric Coleman–Gurtin system and we obtain an exponential stability result. Next, we consider the piezoelectric Gurtin–Pipkin system and we est... | Stability of piezoelectric beam with magnetic effect under (Coleman or Pipkin)–Gurtin thermal law | 10.1007/s00033-022-01867-w |
2022-10-20 | This research work proposes the conventional and novel eddy current damping systems (CECDS & NECDS) for an optimized multi-layer radial permanent magnet bearing, which is axially magnetized. Firstly, the design and optimization of a bearing are carried out by adopting the general procedure for maximum radial force and ... | Optimized multi-layer radial permanent magnet bearing with an eddy current damping systems | 10.1007/s40430-022-03855-7 |
2022-10-19 | This paper is determined to investigate the low-velocity impact responses of functionally graded carbon nanotube reinforced composite viscoelastic beams with general boundary constraints. The beams considered are constructed by a multiplayer beam model with layer-wise CNT weight fraction in each individual layer in the... | Low-velocity impact response of agglomerated FG-CNTRC beams with general boundary conditions using Gram–Schmidt–Ritz method | 10.1007/s40430-022-03843-x |
2022-10-10 | We consider the strongly damped Klein–Gordon equation for defocusing nonlinearity and we study the asymptotic behaviour of the energy for periodic solutions. We prove first the exponential decay to zero for zero mean solutions. Then, we characterize the limit of the energy, when the time tends to infinity, for solution... | Energy asymptotics for the strongly damped Klein–Gordon equation | 10.1007/s42985-022-00207-x |
2022-10-08 | In this work, ion acoustic solitary pulses are investigated in an electron-ion quantum plasma in the presence of neutrals and many-particle effect of exchange-correlations in local density approximation. Quantum hydrodynamics formulation is used to derive nonlinear evolution equation in the form of a damped Korteweg-de... | Effect of Exchange-Correlation Potential on Weakly Dissipating Solitary Pulses in Quantum Plasmas | 10.1007/s13538-022-01197-2 |
2022-10-03 | In this paper, we prove a stability result for a nonlinear wave equation, defined in a bounded domain of $${\mathbb {R}}^N$$ R N , $$N\ge 2$$ N ≥ 2 , with time-dependent coefficients. The smooth boundary of $$\Omega $$ Ω is $$\Gamma =\Gamma _0\cup \Gamma _1$$ Γ = Γ 0 ∪ Γ 1 such that $$\Sigma ={\overline{\Gamma }}_0\cap... | Stability for a nonlinear hyperbolic equation with time-dependent coefficients and boundary damping | 10.1007/s00033-022-01856-z |
2022-10-01 | Abstract A pneumatic suspension with a hybrid damping section is investigated, theoretically and experimentally. The suspension includes a hydraulic shock absorber, an inertial frictional shock absorber, and a dynamic damper. | Pneumatic Suspension with a Flywheel Damper and a Hydraulic Shock Absorber | 10.3103/S1068798X22100197 |
2022-10-01 | Purpose Non-ideal high-speed rotors often exhibit the Sommerfeld effect characterized by nonlinear jumps and eventually gets destabilized. This paper presents a bifurcation analysis to attenuate the jumps in a non-ideal internally damped DC motor-driven shaft-disk system via magnetorheological (MR) fluid damper. Method... | Steady-State and Bifurcation Analysis of Nonlinear Jumps in a Non-ideal Rotor System Using Magnetorheological Fluid Dampers | 10.1007/s42417-022-00503-1 |
2022-10-01 | Taking LW10B-383W/YT4000 sulfur hexafluoride circuit breaker produced by Henan Pinggao Electric Co. LTD as the prototype, a 1/5 scale test model was designed and manufactured based on the similarity theory. Considering the seismic response characteristics and structural form of this electrical equipment, this paper dis... | Experiment and Finite-Element Analysis on Seismic Response of Y-Shaped Porcelain Column Circuit Breaker Equipped with SMA Cables | 10.1007/s40999-022-00725-0 |
2022-10-01 | Use of phasor measurement units in power systems has emerged new real-time control techniques such as wide area damping control (WADC). WADC systems were shown to be very effective if the network induced time delay is handled properly. Delay compensation techniques based on constant delay assumption lack robustness and... | An adaptive network latency compensator design for wide area damping control of power system oscillations | 10.1007/s00202-022-01518-3 |
2022-10-01 | Introduction The radiation as well as diffraction issues involving a stationary spherical structure fully drenched in a fluid streaming on an infinitely extended flexible base surface, are investigated with support of the linear wave theory. The top surface of the fluid region is enclosed by a stiff horizontal sheet. I... | Influence of Bottom Flexibility on Radiation and Diffraction Problems Involving a Spherical Body in a Fluid | 10.1007/s42417-022-00521-z |
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