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2024-01-01
Passive energy damper systems have been considered as efficient and practical method to improve seismic behaviour of structures under lateral loads including seismic. In this study, a new passive steel damping system with shear mechanism fuse has been proposed. Design procedures, recommended equations, parametric and a...
Analytical study on seismic strengthening of reinforced concrete frame equipped with steel damping system with shear mechanism fuse
10.1007/s42107-023-00820-0
2024-01-01
The silt in the Yellow River flood field exhibits strong water sensitivity and unique mechanical properties, which makes it vulnerable to vibration load. This study investigates the dynamic elastic modulus and damping ratio characteristics of the silt by considering the influence of confining pressure and saturation th...
Dynamic modulus and damping ratio characteristics of unsaturated silt in the Yellow River flood field
10.1007/s11771-023-5455-9
2024-01-01
Fibers extracted from the fruits of plants are less investigated for engineering applications as composites along with the engineering polymers. This study holistically developed less explored palmyra fruit fiber/polyester composites with or without montmorillonite nanoclays inclusions. Fibers extracted from the Palmyr...
Synergistic effect of fiber surface treatment and nanoclays on the damping behaviors of polyester composites reinforced with palmyra fruit fibers
10.1007/s00289-023-04722-8
2024-01-01
The damping performance of chlorinated butyl rubber (CIIR) cannot satisfy the rigorous requirements of damping and vibration reduction. Hindered phenol can endow rubber composites with good damping performance, but these small molecules may migrate from rubber matrices. Here, a novel type of damping agent based on the ...
Structure and properties of damping chlorinated butyl rubber composites with hyperbranched polyester grafted hindered phenol
10.1007/s00289-023-04777-7
2024-01-01
This work examines dynamic characteristics of a cable-stayed bridge, utilizing acceleration data from the bridge deck as well as the cables. A weather station installed on the bridge provides additional data for the interpretation of the observed wind and traffic induced vibrations. The measurement data are acquired on...
Field Observation of Global and Local Dynamics of a Cable-Stayed Bridge
10.1007/978-3-031-47152-0_6
2024-01-01
In recent years, there has been several research describing the influence of elastic elements, such as springs or flexible polymers, on the damping of pressure pulsations. As pressure pulsations are one of the most inconvenient phenomena occurring in positive displacement compressor installations, experimental studies ...
Influence of 3D Printed Elastic Structures on the Pressure Pulsations in the Reciprocating Compressor Manifold
10.1007/978-3-031-42663-6_35
2024-01-01
Using spiral tube damping busbar is a promising method for VFTO suppression due to its effectiveness and ease of installation. To optimize the suppression effect, it is crucial to deeply understand the suppression mechanism and related factors. Thus, a complete circuit model of the damping busbar is established, includ...
Research on Full-Circuit Model of Damping Busbar for VFTO Suppression
10.1007/978-981-99-7401-6_22
2024-01-01
Pressure pulsations and pipeline vibrations are unfavorable phenomena generated by the periodic operation of the volumetric compressors. The variable speed of the compressor shaft generates pulsations and vibrations of different frequencies, which means that Helmholtz resonators and tuned mass dampers are not the most ...
In-Line Sphere Arrays as Pressure Pulsation and Pipeline Vibration Dampers in Reciprocating Compressor Manifold
10.1007/978-3-031-42663-6_50
2024-01-01
In this work, the vibrational behavior of luffa cylindrica/USP composites has been addressed. The effect of fiber dosage with difference fiber content from 30, 40, 50% and chemical treatment (NaOH) are analyzed. The specimens are fabricated with compression molding technique with pressure of 17 MPa. For the production ...
Effect of Fiber Dosage and Chemical Treatment on the Vibrational Behavior of Luffa/ USP Composite
10.1007/978-981-99-8327-8_15
2024-01-01
In this work, irreversible energy transfers from a linear oscillator (designated as “primary structure”) forced by shock to a strongly nonlinear attachment composed of particle impact dampers (PIDs) are investigated. The attachment is in the form of a rigid cavity filled with differing quantities of granules; the elast...
Irreversible energy transfers in systems with particle impact dampers
10.1007/s11071-023-09007-3
2024-01-01
Friction-based dampers have gained attention as a cost-effective way to provide structural control during natural hazards. However, the dry friction interfaces in these systems result in a highly nonlinear damping response during the reversal of damper travel, termed damper backlash. Moreover, the stick-slip phenomena ...
Deep-Learning-Based Friction Modeling of Dry Interfaces for Structural Dampers
10.1007/978-3-031-36663-5_27
2024-01-01
Different from the undamped counterpart, nonlinear elastic waves exhibit different wave motion behavior and mechanisms when propagating in damped nonlinear diatomic acoustic metamaterials (NDAMs). Propagation characteristics of elastic waves in a damped NDAMs have not well been studied in the literature. This paper con...
Research on new wave behavior and mechanisms in nonlinear diatomic acoustic metamaterials with linear damping
10.1007/s11071-023-09058-6
2024-01-01
Seismic performance of Y-braced frame with double round steel tube aims to study the performance of the Y shaped bracing in a frame under seismic forces. The project involves the designing of the double round steel tube which act as a damper in the frame. The optimum size of the damper or the double round steel tube is...
Seismic Performance of Y-Braced Frame with Double Round Steel Tube
10.1007/978-3-031-39663-2_30
2024-01-01
We study impact of water-glycerol droplets on a flexible surface, in particular the effect of viscosity on the overall system’s dynamics. We experimentally analyzed the impact dynamics and cantilever response of the system. A thin hydrophilic cantilever beam, made of copper, was used as a flexible substrate. During imp...
Droplet Impact on a Hydrophilic Flexible Surface
10.1007/978-981-99-7047-6_26
2024-01-01
When the maglev train with a speed of 600 km/h runs at high speeds, the vertical carriage vibrations caused by irregularity of tracks are intensified, affecting passenger comfort and even safety. Therefore, it is necessary to find new damping devices to reduce carriage vibrations. Magnetorheological fluid dampers have ...
Design and Vibration Control of Secondary Suspension for Maglev Train Based on Magnetorheological Fluid Damper
10.1007/978-981-97-0554-2_54
2024-01-01
Damping devices installed in building structures increase resilience against natural hazards such as earthquakes and high winds. Structural control devices are divided into passive, semi-active, active, and hybrid systems. Semi-active vibration control has received considerable attention because it combines the reliabi...
Development of Semi-active Cam-Lever Friction Device on a Small-Scale Structure Subjected to Earthquake Loads
10.1007/978-3-031-36663-5_28
2024-01-01
Tuned mass dampers (TMDs) are proven to be effective in reducing both the acceleration and displacement responses of civil structures subjected to earthquake. The basic idea behind the use of a TMD in civil structures is to create an alternative path for the flow of mechanical energy in the dynamic system of primary st...
Vibration Control Using Frictional Tuned Mass Dampers with Stick-Slip Motion
10.1007/978-3-031-36663-5_29
2024-01-01
Active systems have garnered interest from researchers worldwide for their fascinating displays of congregations and the far-reaching scope of biomimetic applications. The current chapter talks about one such application: the use of active particles to induce mixing in a stratified passive system. Simulations using a L...
Activity-Induced Mixing in a Stratified Binary Passive System
10.1007/978-981-99-5752-1_11
2024-01-01
Optimization on rotor-dynamics has increasingly attracted attention from numerous researchers, although concentrations on the optimization of time-invariant system parameters result in relatively low versatilities. In this paper, a multi-objective optimization framework based on a novel predictive control method is pro...
Multi-objective Optimization of Active Dry Friction Damper-Rotor Systems Based on Predictive Control
10.1007/978-3-031-40459-7_20
2024-01-01
In this chapter, an attempt is made to develop a coupled non-linear turbulence-structure-damper model in a Finite Volume-Finite Difference (FV-FD) framework. A Tuned Liquid Damper (TLD) is used as the additional damping system along with inherent structural damping. Real-time simulation of flow-excited bridge box girde...
Reduction in Turbulence-Induced Non-linear Dynamic Vibration Using Tuned Liquid Damper (TLD)
10.1007/978-981-99-5752-1_18
2024-01-01
Traditional methods of protecting structures from the destructive forces of nature, appearing during earthquakes, based on the strengthening of structures, lead to a significant increase in the cost of construction in seismically hazardous areas. Rolling bearings, limited by various surfaces of rotation as the main ele...
Oscillations of a Body on Rolling Bearings with Straightened Surfaces Caused by a Random Movement of the Base
10.1007/978-3-031-45709-8_85
2024-01-01
Tapered laminate structures with ply drop-off are used extensively in aeronautic and astronautic applications. However, ply drop-off involves inherent structural discontinuities that create stress concentrations, potentially resulting in failure below the loading capability of the structure. We performed experiments to...
Mechanical Properties of a Tapered Composite Structure in a Movable Aircraft Wing
10.1007/978-981-99-8864-8_37
2024-01-01
The seismic performance curve of single-particle-system is used to investigate the damping amount of additional dampers for reinforced concrete frame structures. The damping amount of the additional metal damper is researched and calculated. First, the original structure is simplified to a single-particle-system. The i...
Analysis of Energy Dissipation Structure of Reinforced Concrete Frame with Additional Metal Damping
10.1007/978-981-99-6368-3_29
2024-01-01
The Church of the Transfiguration is a Catholic Basilica located on top of Mount Tabor in Galilee, Israel. It was built in 1924 following the design of the Italian architect Antonio Barluzzi on the ruins of an ancient Byzantine church (4th-6th century) and of a Crusader church (12th century). The façade of the church i...
Experimental and Numerical Studies on the Bell Tower of the Transfiguration Basilica on Mount Tabor, Israel
10.1007/978-3-031-39603-8_62
2024-01-01
To deal with vehicle/track interaction in the time domain, the infinitely long railway track often has to be truncated, generating a finite track model. The ends of the rail in the model are normally simply supported. To account for high-frequency vibration, high train speed and the presence of multiple carriages, the ...
Boundary Condition and Equivalent Mass-Spring-Damper System for a Truncated Railway Track
10.1007/978-981-99-7852-6_21
2024-01-01
A computer algorithm is developed for the numerical simulation of fluid viscous dampers (FVDs), represented by a Maxwell model in elastic and inelastic SDOF systems for nonlinear dynamic analyses under near-field (NF) and far-field (FF) earthquake motions. Maxwell model incorporates the frequency dependence of the damp...
Maxwell Model of Fluid Viscous Dampers in Elastic and Inelastic SDOF Systems
10.1007/978-981-99-3362-4_39
2024-01-01
The present work aims to analyze the effectiveness of a passive vibration control device in a structure subjected to random vibrations. The structure is a ten-story building equipped with a Tuned Mass Damper (TMD) at the top and it is subjected to artificial seismic excitations generated by the Kanai-Tajimi spectrum. T...
Dynamic analysis of a building equipped with a Tuned Mass Damper subjected to artificial seismic excitations considering uncertainties in the parameters of the structure and of the excitation
10.1007/978-3-031-47036-3_8
2024-01-01
Background Acoustic metamaterials exhibit many novel wave propagation behaviors that can be designed to control and guide wave propagation in a variety of media. Due to the existence of damping, the attenuation effect of wave propagation significantly affects the elastic wave propagation in the nonlinear system. Howeve...
Spectro-spatial Analysis of Nonlinear Wave Propagation Behaviors in Damped Acoustic Metamaterial Systems
10.1007/s42417-022-00827-y
2024-01-01
Semi-active control is considered to be very interesting in view of its similarity with the active control, however, requiring significantly lesser control-effort/input. Indeed, semi-active control strategies have been used quite widely in many vibration control applications over the past years. In the present study, a...
Semi-active Control for Seismic Vibration Mitigation of Building System with Magnetorheological Damping Device
10.1007/978-981-99-6855-8_2
2024-01-01
Completing a long-term project characterizing squeeze film dampers (SFDs) for air breathing engines, the paper presents complete measurements of the forced performance of an elastic structure hosting an OR-sealed damper (OR-SFD) and the identification of physical parameters, namely stiffness and damping, for the dry st...
Dynamic Performance of an O-Ring Sealed Squeeze Film Damper and a Simple Way to Estimate the (Ingested) Gas Content in a Squeeze Film
10.1007/978-3-031-40455-9_9
2024-01-01
To solve the excessive vibration of an energy storage flywheel rotor under complex operating conditions, an optimization design method used to the energy storage flywheel rotor with elastic support/dry friction damper (ESDFD) is proposed. Firstly, the dynamic model of the ESDFDs-energy storage flywheel rotor coupling s...
Vibration Reduction Optimization Design of an Energy Storage Flywheel Rotor with ESDFD
10.1007/978-3-031-40459-7_7
2024-01-01
In order to solve the rail corrugation in the curved section of the steel spring floating slab track in Qingdao metro, a new type wide-frequency tuned mass damper (WTMD) was developed, which integrated the labyrinth restraint damping plate and TMD’s technology. The track tests of the rail corrugation, rail vibration, i...
Study on the Wide-Frequency Tuned Mass Damper Inhibiting Rail Corrugation and Noise in Floating Slab Track
10.1007/978-981-99-7852-6_37
2024-01-01
Motorcycle experiences different vibrations on different road conditions. In order to improve the problem that the classical control algorithm cannot perfectly balance the driving comfort and road-holding performance when the motorcycle is driving in different road conditions, the hybrid control algorithm based on freq...
Control algorithm design of motorcycle semi-active suspension system via frequency division
10.1007/s12206-023-1204-0
2024-01-01
Components manufactured by laser powder bed fusion (LPBF) additive manufacturing can have particle dampers designed into the part by leaving unfused powder inside a defined pocket of the part during manufacturing. These pockets of unfused material have inherent damping capabilities that suppress the vibrations and pote...
Investigating Compressing Particle Damper Pockets in Beams Manufactured by Laser Powder Bed Fusion Additive Manufacturing
10.1007/978-3-031-37007-6_15
2024-01-01
A collaborative optimization methodology is proposed for estimating the parameters of magnetorheological (MR) dampers in structural control systems. By integrating the characteristics of antlions and ant colonies, this method aims to improve the estimation process through teamwork. Ants and antlions communicate and wor...
Antlion-Facing Ant Colony Optimization in Parameter Identification of the MR Damper as a Semi-active Control Device
10.1007/978-981-99-7227-2_8
2023-12-29
In this paper, we investigate the stabilization of Timoshenko systems with or without Kelvin–Voigt damping, in the presence of second sound. We have drawn conclusions that provide new insights into the effect of local Kelvin–Voigt damping. Our primary conclusion is that the exponential stability of the system achieved ...
Effects of Kelvin–Voigt Damping on the Stability of (Thermo)Elastic Timoshenko System with Second Sound
10.1007/s00245-023-10098-y
2023-12-28
In the midst of escalating seismic activity on a global scale, the imperative of devising ingenious structural solutions looms large, driven by the necessity to safeguard the security and soundness of constructed environments. This study delves into an inventive avenue for bolstering seismic resilience, by ingeniously ...
Unveiling advanced modelling and analysis: the integrated system and formula for mass–spring–damper with hydraulic damper systems
10.1007/s41939-023-00317-y
2023-12-27
This paper presents the evaluation of the dynamic stiffness coefficient (the stiffness and damping coefficient) of a rigid and massless foundation embedded in a layered elastic half-space. Linear hysteric material damping is introduced in the model using the correspondence principle. Based on the strength of the materi...
Dynamic Response of Embedded Foundations in Layered Halfspace: A Cone Model Approach
10.1007/s40098-023-00825-1
2023-12-27
The industry’s mechanical equipment often faces a significant demand for damping rubber. Simultaneously improving damping and toughness of rubber materials is a challenging task. It was achieved by incorporating crystal particles into the chlorinated butyl rubber (CIIR) network, inspired by the “sliding crystal mechani...
Toughening and damping elastomers using crystallizable polyurethane particles
10.1007/s00289-023-05116-6
2023-12-21
Granular materials used for vibration reduction often show dense granular clusters in engineering practice. Nevertheless, there are great differences in the damping effect between different dense granular clusters. In this work, discrete element simulations are performed to investigate the evolution of dense granular c...
From solid-like to floating: evolution of dense granular cluster in dissipation behavior
10.1007/s10035-023-01385-0
2023-12-18
Background Eddy current damper (ECD) pledges better control over damping coefficient, provides contactless damping, requires little or no maintenance, has simpler construction, no performance degradation over time, and is cost-effective as compared to mechanical dampers. Its challenge includes the development of a syst...
Research Developments of Eddy Current Dampers for Seismic Vibration Control of Structures
10.1007/s42417-023-01229-4
2023-12-18
A semilinear beam/plate equation with non-constant material density in the context of energy damping models is considered. Well-posedness and asymptotic behavior of solutions are established. The main result deals with the existence of a compact global attractor for the proposed problem.
Dynamics for a class of energy beam models with non-constant material density
10.1007/s00033-023-02147-x
2023-12-16
Purpose The active tuned mass damper (ATMD) system is underactuated where the number of actuators is less than the number of system’s DOF. It is well known that the regulation of an underactuated system is challenging. Few reports can be found in the literature relating to the design of ATMD systems from the view point...
Vibration Suppression in the Underactuated Dynamics of ATMD Systems Under Earthquake Excitation
10.1007/s42417-023-01224-9
2023-12-08
This paper is concerned with the Gromov–Hausdorff stability of global attractors for the 3D Navier–Stokes equations with damping under variations of the domain, which describes the complexity of the dynamics of the motion of a fluid flow. The Gromov–Hausdorff stability accounts for the Gromov–Hausdorff distance between...
Gromov–Hausdorff stability of global attractors for the 3D Navier–Stokes equations with damping
10.1007/s00033-023-02146-y
2023-12-08
The Wind Farms (WFs) are located far away from the load centres, with the resultant equivalent reactance being more than near the load. It results in a weak grid due to high power transferred in the transmission lines that affect the low frequency of oscillations, and the system exists with undamped functions. The tran...
Dynamic stability reinforcement in remote wind farm connections: POD-SSSC coordination with fuzzy logic control using RTDS
10.1007/s00202-023-02145-2
2023-12-07
Robustness is defined as the insensitivity of the structure to uncertainties like earthquakes, fire, cyclones, explosions, tsunamis, etc. Robustness analysis of Kalman observer with robust controller for damped outrigger structure is studied to analyze its design performance in the presence of various effects like an e...
Robustness evaluation of the damped outrigger structure
10.1007/s40430-023-04584-1
2023-12-02
Vibration problems of mistuned blisks have been extensively investigated in the past several years. To suppress the vibration level of the mistuned blisk, the blisk structure is equipped with piezoelectric shunt damping. At the same time, the performance of the piezoelectric shunt damping can be enhanced through optimi...
Optimization analysis of the intentional mistuning mode of the blisk with piezoelectric shunt damping patches
10.1007/s40430-023-04583-2
2023-12-01
Cohesive zone model has been used widely in fracture propagations, but few of them have considered strain rate, plastic strain, and variable damping together. In this paper, artificial compliance and spurious oscillation in bilinear cohesive law are investigated through dynamic simulations. Several constitutive laws an...
Improved cohesive zone model: integrating strain rate, plastic strain, variable damping, and enhanced constitutive law for fracture propagation
10.1007/s10704-023-00723-w
2023-12-01
High penetration of inverter-based renewable energy sources (RESs) in the microgrid reduces the system inertia. As a result, sudden load fluctuations or unwanted disturbances in the power network increase the rate of change of frequency and this may lead to system instability. Virtual inertia (VI) controller with energ...
Grey wolf optimization approach for enhancing the transient stability of microgrid using fractional-order PID-based inertia injection controller
10.1007/s00202-023-01946-9
2023-12-01
The present work is a fundamental study on added damping regarding shunted inclined piezoelectric sensors for structures on cantilever plates. These structures are subjected to transverse and torsional actuation due to inclined piezoelectric actuators. Estimation of added damping is derived using an energy variation an...
Study on Prediction of Added Damping from Inclined PZT-5 H for Bending and Torsional Modes
10.1007/s40997-023-00638-w
2023-12-01
In a Hilbert space setting, we consider new first order optimization algorithms which are obtained by temporal discretization of a damped inertial autonomous dynamic involving dry friction. The function f to be minimized is assumed to be differentiable (not necessarily convex). The dry friction potential function $$ \v...
First order inertial optimization algorithms with threshold effects associated with dry friction
10.1007/s10589-023-00509-9
2023-12-01
A flat bottom tank geometry has traditionally been used for tuned liquid dampers (TLDs) to control the resonant response of tall buildings. However, the bottom geometry may be dictated by building space availability. Different bottom geometries have been proposed to conform to strict floor plans. Previous studies focus...
Modelling of sloped and curved bottom sloshing tanks with screens using smoothed particle hydrodynamics
10.1007/s40435-023-01176-8
2023-12-01
Abstract This study aims to investigate the contact performance of non-Gaussian rough surfaces under mixed lubrication conditions, with a particular emphasis on the normal dynamic contact stiffness and damping characteristics. The research employs statistical analysis and modeling techniques to analyze non-Gaussian rou...
Investigation of Normal Dynamic Contact Stiffness and Damping Characteristics in Mixed Lubrication for Non-Gaussian Rough Surfaces
10.3103/S0025654423601337
2023-12-01
Swarm robotics, in which groups of robots coordinate to achieve a common goal, has the potential to revolutionize a wide range of industries. However, one of the key challenges in developing effective swarm systems is enabling the robots to navigate around obstacles while maintaining cohesion. In this article, the prob...
Obstacle avoidance of a wheeled robotic swarm using virtual spring-damper mesh
10.1007/s40435-023-01173-x
2023-12-01
Boring bars with a large length-to-diameter ratio have become increasingly indispensable for deep hole machining. However, the dynamic performance of conventional boring bars may be inadequate, resulting in vibrations. In this paper, a novel boring bar with composites and a constrained layer damping structure was fabri...
Analysis and Development of the CFRP Boring Bar for Stability Improvement
10.1007/s12221-023-00376-5
2023-12-01
To investigate the size-dependent behavior of micro-beams with thermoelastic damping (TED), a new size-dependent thermoelastic damping model based on modified gradient elasticity is proposed in this study. The governing equations and boundary conditions are derived based on the modified gradient elasticity theory and t...
A size-dependent thermoelastic damping model for micro-beams based on modified gradient elasticity
10.1007/s00419-023-02510-4
2023-12-01
Effects of Hf and Zr additions on microstructure, phase components, structural properties, transformation temperatures and damping capacity of Ni_3Ta high-temperature SMA were studied via SEM/EDX, XRD, DSC and DMA measurements. Microstructural investigations showed that the microstructure of Ni_3Ta contained the Ni_8Ta...
Effects of Hf and Zr Additions on Microstructure, Phase Components and Martensitic Transformation Temperatures of Ni_3Ta High-Temperature Shape Memory Alloys
10.1007/s11665-023-07920-7
2023-12-01
Abstract The results of theoretical and experimental studies of rubber-cord shells of rotation of connected couplings are presented. Based on the heat balance equation and the law of distribution of tangential stresses along the forming cylindrical shell, the differential equations of temperature distribution in the ru...
Investigation of Temperature Fields of Rubber-Cord Shells of Rotation of Connected Couplings of the Drives of Transport Vehicles
10.1134/S1052618823080058
2023-12-01
Hybrid journal bearings are used mostly to take benefits of simultaneous hydrostatic and hydrodynamic actions. This paper uses numerical technique to investigate wear effect on the cross-coupled dynamic coeff. and threshold stability speed of recessless conical hybrid journal bearing (CHJB) using capillary restrictor. ...
Influence of Wear on the Cross-Coupled Dynamic Coefficients and Threshold Speed of Conical Hybrid Fluid Film Bearing
10.1007/s40032-023-01000-4
2023-12-01
In this paper, a simplified acoustic optimization method is proposed to replace the sound power with the maximum normal velocity of the surface as a direct target, a topological optimization model of the variable density method is established to reduce the acoustic radiation of the structure, and the relationship betwe...
Simplified topology optimization of damping layer in plate structures for vibration and acoustic response
10.1007/s12206-023-1101-6
2023-12-01
Hybrid vibration absorbers (HVAs) are an effective solution for vibration mitigation. They combine the passive vibration absorption mechanism of tuned mass dampers (TMDs) with feedback-controlled actuators, similar to active mass dampers. This enables them to overcome the performance of both systems in terms of vibrati...
Hybrid vibration absorber for self-induced vibration suppression: exact analytical formulation for acceleration feedback control
10.1007/s11012-023-01731-9
2023-12-01
Abstract The influence of internal dissipation on the rotational motion of the Earth in the gravitational field of the Sun and Moon is studied within the model of M.A. Lavrentiev. The averaged equations of second approximation describing the evolution of the Earth’s rotation axis and the magnitude of its angular veloci...
Evolution of Rotational Motion of the Planet Earth under the Influence of Internal Dissipative Forces
10.1134/S001095252370051X
2023-12-01
To suppress the vibration of the suspended cab of construction machinery, a novel passive hydraulically damped rubber mount (PHDRM) with multi-inertial tracks is designed. The two suspension system models describing single and multi-inertial tracks are proposed in different coupled relations based on the parallel combi...
Dynamic performance of a novel hydraulically damped rubber mount with inertial track at low frequency: modeling and experimental study
10.1007/s12206-023-1109-y
2023-11-29
We give a proof of linear inviscid damping and vorticity depletion for non-monotonic shear flows with one critical point in a bounded periodic channel. In particular, we obtain quantitative depletion rates for the vorticity function without any symmetry assumptions.
On the Stability of Shear Flows in Bounded Channels, II: Non-monotonic Shear Flows
10.1007/s10013-023-00661-z
2023-11-27
In this paper, we consider the initial value problem for weakly damped Kirchhoff plate equation with logarithmic nonlinearity in a bounded domain. We investigate the existence, uniqueness and polynomial or exponential energy decay estimates of global weak solutions under initial energy less than the depth of the potent...
Stabilization and blow-up for a class of weakly damped Kirchhoff plate equation with logarithmic nonlinearity
10.1007/s13226-023-00518-8
2023-11-25
Free vibration, damping and three-dimensional thermal buckling studies of the doubly curved sandwich viscoelastic-functionally graded (FG) material shell panels have been carried out under the high-temperature environments when subjected to uniaxial and biaxial uniform in-plane compressive loading. The sandwich-curved ...
Thermal Buckling, Vibration and Damping Behavior of Viscoelastic-FGM Sandwich Doubly Curved Panels
10.1007/s40033-023-00590-8
2023-11-24
Purpose This study focuses on the development of a squeeze film damper (SFD) for reducing the vibration amplitudes of high-speed rotating shafts. The effects of SFD process parameters, including shaft rotation, oil pressure inside the damper, and oil blend percentage, while the rotation of the flexible shaft up to a sp...
Comprehensive Experimental Analysis of a Squeeze Film Damper for Flexible Rotor Applications: Utilizing Box–Behnken Design with Desirability Optimization
10.1007/s42417-023-01197-9
2023-11-24
This research offers a scientific, industry-driven approach to studying the impact of acceleration and displacement reactions on ride comfort, handling, and safety in automobile suspension design. Different suspension systems were tested at a maximum speed of 240 km/hr, with the Intelligent Control Suspension System (I...
Industry-Driven Approach for ANFIS-Based Intelligent Control Suspension System with MR Damper for Enhanced Ride Quality in Passenger Rail Vehicles for Technological Investigations
10.1007/s40009-023-01365-1
2023-11-22
Aiming at the situation that some dampers cannot give full play to the energy dissipation effect during small earthquakes, this paper proposes a displacement-amplified mild steel bar joint damper. This type of damper can amplify the small displacement of beam-column nodes through the lever principle, so that the damper...
Study on Mechanical Properties of Displacement-Amplified Mild Steel Bar Joint Damper
10.1007/s40996-023-01268-7
2023-11-17
Purpose Measurement and analysis of vibration characteristics of plants are of great significance in plant health monitoring, wood material characteristic determination, etc. Currently, vibration characteristics of plants are mainly measured by contact sensors, which need a relatively complex installation procedure, an...
Health Status Identification and Material Damping Determination of Plants via Non-contact Measurement and Mechanical Modelling
10.1007/s42417-023-01193-z
2023-11-14
This paper is focused on the Riemann problem for a 2 × 2 $2\times 2$ hyperbolic system of conservation laws with a time-gradually-degenerate damping. Two kinds of non-self-similar solutions involving the delta-shocks and vacuum are obtained using the variable substitution method. The generalized Rankine-Hugoniot relati...
Riemann problem for a 2 × 2 $2\times 2$ hyperbolic system with time-gradually-degenerate damping
10.1186/s13661-023-01798-z
2023-11-13
Purpose Squeeze film dampers (SFDs) are used for reducing the vibration amplitude of high-speed rotors. In this context, a SFD has been developed to meet the requirements of high speeds rotating shafts. This study investigates the effect of SFD process parameters (rotation of shaft, oil pressure inside the damper, and ...
Development and Experimental Investigations of Squeeze Film Damper Setup for High Rotational Speeds and Oil Pressure
10.1007/s42417-023-01186-y
2023-11-11
We consider a swelling porous-elastic system with single nonlinear damping and nonlinear delay term in the elastic equation. We establish the general decay result using multiplier method.
A general stability result for swelling porous elastic media with nonlinear damping and nonlinear delay term
10.1007/s13370-023-01126-9
2023-11-11
This investigation focuses on the enhancement of the damping properties of Methyl Methacrylate Acrylonitrile Butadiene Styrene (MABS) through the formulation of a specific blend with a styrene-based elastomer referred to as VDT, and with the incorporation of Ethylene Butylene Styrene grafted Maleic Anhydride (SEBS-g-MA...
Enhancing vibration damping properties of MABS/VDT blends using SEBS-g-MAH as a compatibilizer
10.1007/s10965-023-03819-y
2023-11-10
In the present work, we consider a nonlinear Klein–Gordon equation with strong damping, distributed delay and source terms. Under suitable conditions, we prove the blow-up result of solutions. Our result is an extension of many other works in this area.
Global nonexistence of solution for a nonlinear Klein–Gordon equation with strong damping, distributed delay and source terms
10.1007/s13370-023-01137-6
2023-11-07
In this work we consider a semilinear plate equation with non-constant material density in the context of energy damping models. Existence and uniqueness of regular and generalized solutions are established. The energy associated to this equation is shown to posses a compressed polynomial decay range.
Stability by Polynomial Squeezing for a Class of Energy Damping Plate Models
10.1007/s10440-023-00619-w
2023-11-03
Band gap characteristic of flexural metamaterial beams has been an active area of research for its potential application in providing low-frequency band gaps. The present work brings out investigations on flexural metamaterial beams, highlighting the influence of their design parameters. The metamaterial beams were fab...
Influence of cell parameters in local resonator-based metamaterials
10.1007/s40430-023-04533-y
2023-11-01
This paper studies the existence of weak solutions and their asymptotic behaviour to the initial boundary value problem for a multidimensional nonlinear Bresse system. The existence of the solutions of the problem is obtained by appliying Galerkin method. Then, we obtain an explicit decay rate estimation dependent on b...
Decay rate estimates for a new class of multidimensional nonlinear Bresse systems with time-dependent dissipations
10.1007/s11587-020-00554-0
2023-11-01
The nonlinear dynamic analysis of rotating composite boring round bar containing carbon nanotubes (CNTs) in boring system is investigated. Firstly, according to both the Halpin–Tsai model and the micro-mechanical theory, the resultant properties of filled-CNT composite material are estimated. Subsequently, the equation...
Nonlinear chatter of CNTs-reinforced composite boring cutter considering unstable region
10.1007/s00419-023-02490-5
2023-11-01
Compared with traditional linear models, the nonlinear model of boring can profoundly reveal the physical mechanism and mathematical laws of chatter occurrence, and has more rich scientific connotations. The nonlinear kinematic equations of the composite boring system containing carbon nanomaterials (CNMs) are derived ...
Investigation of chatter suppression by using rotating composite boring bar CNT-filled based on a modified nonlinear dynamical model
10.1007/s11071-023-08986-7
2023-11-01
Due to diminishing system inertia, system operators currently mandate solar photovoltaic (PV) systems to participate in frequency control. In the literature, the standard approach for achieving this has been to combine a PV system with energy storage. However, it has a number of technical and financial drawbacks. With ...
A Master-Slave-Based Power Reserve Control Approach for Solar PV Participation in Frequency Control
10.1007/s13369-023-08120-0
2023-11-01
This study devises an advanced single-loop output voltage control method for DC/DC converters incorporating a model-free filter, active damping, and nonlinearly designed feedback terms. The resultant output-feedback controller ensures the order reduction property and reduces both the dependence level of the system mode...
Single-loop order reduction output voltage control with model-free filtering for DC/DC converters
10.1007/s43236-023-00689-x
2023-11-01
In a Hilbert framework, we introduce a new class of second-order dynamical systems that combine viscous and geometric damping but also a time rescaling process for nonsmooth convex minimization. A main feature of these systems is to produce trajectories that lie in the graph of the Fenchel subdifferential of the object...
Fast Continuous Dynamics Inside the Graph of Subdifferentials of Nonsmooth Convex Functions
10.1007/s00245-023-10055-9
2023-11-01
The purpose of this paper is to study the multiplicity of periodic solutions for a class of non-autonomous second-order damped vibration systems. New results are obtained by using Fountain theorem. These results improve the related ones in the literature.
New results on periodic solutions for second order damped vibration systems
10.1007/s11587-021-00567-3
2023-11-01
In this article, we consider the one-dimensional system of piezoelectric beams with a nonlinear damping term. First, we show the existence and uniqueness of solutions by the semi-group technique more precisely by Hille-Yosida theorem. And by building an appropriate Lyapunov functional, we establish general decay result...
General stability for piezoelectric beams with a nonlinear damping term
10.1007/s11565-022-00443-4
2023-11-01
Boost derived converters are widely employed due to their simplicity and high reliability when it comes to obtaining a higher voltage level. However, the existence of right half-plane (RHP) zeros in the control-to-output transfer function deteriorates the dynamic performance of this category converters. Integrated coup...
Novel integrated coupled inductor boost with RL parallel damping network for improving dynamic response
10.1007/s43236-023-00670-8
2023-11-01
The main goal of this paper is to provide a Reduced Order Model (ROM) able to predict the liquid induced dissipation of the violent and vertical sloshing problem for a wide range of liquid viscosities, surface tensions and tank filling levels. For that purpose, the Delta Smoothed Particle Hydrodynamics ( $$\delta $$ δ ...
Sloshing reduced-order model trained with Smoothed Particle Hydrodynamics simulations
10.1007/s11071-023-08940-7
2023-11-01
In this paper, we analyze a speed restarting scheme for the inertial dynamics with Hessian-driven damping, introduced by Attouch et al. (J Differ Equ 261(10):5734–5783, 2016). We establish a linear convergence rate for the function values along the restarted trajectories. Numerical experiments suggest that the Hessian-...
A Speed Restart Scheme for a Dynamics with Hessian-Driven Damping
10.1007/s10957-023-02290-5
2023-11-01
The goal of this paper is to consider damped elastic systems with nonlocal conditions in the framework of Banach spaces. Our first aim is to investigate the existence of mild solutions to damped elastic systems by means of fixed point for condensing maps avoiding the hypothesis of compactness on the semigroup. The seco...
A study on decay mild solutions for damped elastic systems in Banach spaces
10.1007/s00605-023-01883-6
2023-11-01
In this paper we study the well-posedness as well as the stabilization properties of the swelling porous elastic media with structural damping acting on both equations of the system. By using semigroup theory, we prove the system is globally well posed in energy space. We stablished the energy dissipation law since the...
A new stability result for swelling porous elastic media with structural damping
10.1007/s11565-022-00433-6
2023-11-01
Microvibration is a severe issue that is present in many components on spacecraft, such as cryocoolers, thrusters, solar arrays, and momentum/reaction wheel assemblies (M/RWAs), which can severely downgrade the working accuracy of sensitive payloads. To address this dilemma, recently, the development of passive, active...
Microvibration isolation in sensitive payloads: methodology and design
10.1007/s11071-023-08943-4
2023-11-01
In this paper, we study the approximate controllability of damped elastic systems with initial conditions without the assumptions that the corresponding linear system is approximately controllable. Firstly, the existence of mild solution is obtained by means of contraction mapping principle and operator semigroup theor...
A Study on the Approximate Controllability of Damped Elastic Systems Using Sequence Method
10.1007/s12346-023-00895-9
2023-11-01
Vortex-induced vibration is a typical nonlinear fluid–structure interaction phenomenon. Significant challenges to high-precision prediction by the prevalent methods rely on three complex nonlinear dynamic behaviors: nonlinear evolution (NE), vibration peak deviating from the resonance (PD), and nonlinear hysteresis. Al...
Data-knowledge-driven semi-empirical model augmentation method for nonlinear vortex-induced vibration
10.1007/s11071-023-08966-x
2023-11-01
The conventional nonlinear control methods for induction motors have the problem of difficult observation of rotor current, and load disturbances make the dynamic performance of the system speed control unsatisfactory. A novel disturbance rejection control scheme with variable damping model based on port controlled Ham...
Disturbance Rejection Control Method Based on Variable Damping and Port Controlled Hamiltonian with Dissipation Model for Induction Drive Motor
10.1007/s12541-023-00863-y
2023-11-01
The oscillating water column (OWC) devices constitute the most widely used systems for the wave energy conversion. Optimizing the performances of such devices mainly composed with a bidirectional air turbine and a water–air chamber still remains of great interest. The present investigations focus on the numerical analy...
Effects of turbine damping and wave conditions on OWC performances for optimal wave energy conversion
10.1007/s40722-023-00293-y
2023-11-01
This paper treats the problem of a spherical robot with an axisymmetric pendulum drive rolling without slipping on a vibrating plane. The main purpose of the paper is to investigate the stabilization of the upper vertical rotations of the pendulum using feedback (additional control action). For the chosen type of feedb...
Stabilization of Steady Rotations of a Spherical Robot on a Vibrating Base Using Feedback
10.1134/S1560354723060060
2023-11-01
Backgrounds In this paper, a kind of mining MR damper with shear and valve working mode is designed. Compared with the traditional damper, this MR damper has better energy dissipation characteristics and can provide greater damping force in a short time. Its damping can be adjusted with the excitation current. Purposes...
Research on the Performance of a Novel Magnetorheological Damper for Mining
10.1007/s42417-022-00794-4
2023-11-01
Regular and singular dust ion-acoustic solitons structures have been investigated employing a semi-analytical scheme, Adomian decomposition method (ADM). The Damped Korteg-de Vries (DKdV) equation has been derived using the reductive perturbation technique from the set of governing equations of the unmagnetized collisi...
Regular and singular dust ion-acoustic soliton structures in superthermal plasmas: Adomian decomposition approach
10.1007/s12648-023-02703-1
2023-11-01
Sugar beet ( Beta vulgaris L.) is an economically important crop in temperate climates providing nearly 30% of sugar production worldwide. The oomycete Aphanomyces cochlioides is the causative agent of seedling damping-off and root rot disease in sugar beet. The pathogen is responsible for plant degeneration and drasti...
Rapid detection and quantification of Aphanomyces cochlioides in sugar beet
10.1007/s42161-023-01490-2
2023-11-01
The effective damping characteristics of a polymer-based unidirectional fiber-reinforced composite are explored. A continuum micromechanical formulation is used to determine the effective damping parameters of a fiber-reinforced composite by the strain energy method. The damping properties include the loss factors corr...
A Numerical Model for the Effective Damping Properties of Unidirectional Fiber-Reinforced Composites
10.1007/s11029-023-10150-6