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Numerical analysis of vehicle-bridge coupling vibration concerning nonlinear stress-dependent damping

Pengfei LI; Jinquan ZHANG; Shengqi MEI; Zhenhua DONG; Yan MAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2, Pages 239-249 doi: 10.1007/s11709-021-0804-y

Abstract: This study investigated the application of stress-dependent damping associated with vehicle-bridge couplingvibration and based on that investigation proposed the stress-dependent damping ratio.The results of the investigation show that the stress-dependent damping ratio is significantly differentThe peak accelerations using the regular damping ratio are 18.9%, 21.3%, and 14.5% of the stress-dependentThe acceleration response of the bridge which was calculated using the stress-dependent damping ratio

Keywords： vehicle-bridge vibration system dynamic analysis stress-dependent damping energy dissipation

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Dynamics of structural systems with various frequency-dependent damping models

Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 48-63 doi: 10.1007/s11465-015-0330-5

Abstract:

The aim of this paper is to present the dynamic analyses of the system involving various damping modelsThe assumed frequency-dependent damping forces depend on the past history of motion via convolution integralsover some damping kernel functions.By choosing suitable damping kernel functions of frequency-dependent damping model, it may be derivedA brief review of literature on the choice of available damping models is presented.

Keywords： damping viscoelasticity dynamic analysis mode superposition method Fourier transform method

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Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2, Pages 346-363 doi: 10.1007/s11709-021-0694-z

Abstract: This becomes more crucial when the path-dependent behavior of the material is considered.Accurate representation of radiation damping in a half-space medium and wave propagation effects in ato reproduce irreversible deformations and tensorial degeneration of concrete in a coupled and rate-dependentthe results of the presented comprehensive model indicates the significance of considering radiation damping

Keywords： soil–structure interaction massed foundation radiation damping anisotropic damage

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Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3, Pages 350-367 doi: 10.1007/s11709-022-0923-0

Abstract: 3D) base-isolated frame structures by connecting a custom-designed cylinder pair to provide vertical dampingwith replaceable damping components installed outside the cylinders when the superstructure undergoesTheoretical formulas for calculating the damping and rocking constraint stiffness of the RCD are proposedThe test results show that the cylinder without orifices on its piston can provide the desired dampingwith a replaceable damping component, and that the RCD can effectively suppress rocking.

Keywords： three-dimensional isolation rocking behavior rocking constraint device replaceable damping component

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Approximation of structural damping and input excitation force

Mohammad SALAVATI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2, Pages 244-254 doi: 10.1007/s11709-016-0371-9

Abstract: The more sensitive parameter to the damage is the damping behavior of the structure.The complexity of structural damping mechanisms has made this parameter to be one of the ongoing researchDespite all the difficulties in the modeling of damping, there are some approaches like as linear andIn the presence of a mathematical model of the damping mechanisms, it is possible to estimate the dampingIn this paper model-based damping approximation method and a model-less structural input estimation are

Keywords： structural modal parameters damping identification method input excitation force identification Inverse

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Variable stiffness and damping magnetorheological isolator

Yang ZHOU, Xingyu WANG, Xianzhou ZHANG, Weihua LI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 310-315 doi: 10.1007/s11465-009-0039-4

Abstract: the development and characterization of a magnetorheological (MR) fluid-based variable stiffness and dampingExperimental results indicate that both the stiffness and damping capability of the developed MR isolator

Keywords： magnetorheological (MR) fluid stiffness damping mathematical model dynamic performance parameter identification

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Size-dependent Elastic Instability of Gel CylinderWith Surface Stress

Huang Dianwu,Qiao Ling, Wang Shiji

Strategic Study of CAE 2007, Volume 9, Issue 4, Pages 50-54

Abstract:

The elastic instability of a gel cylinder was researched with classical elastic theory. The non-classic boundary condition of the elastic instability has been educed by the energy functional variation analysis. So a criterion equation of the elastic instability can be got. Through the analysis of the equation, it is found that the elastic instability is relevant to the radius, intrinsic scale and instable wavelength of the cylinder.

Keywords： gel cylinder elastic instability intrinsic scale surface effect

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Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 281-287 doi: 10.1007/s11709-012-0167-5

Abstract: The boundary condition was based on the damping-solvent extraction method.The principle of the damping-solvent extraction method was described.artificial boundary condition was then established by setting two spring-damper systems and one artificial dampingCompared with the damping-solvent extraction method, this boundary condition is easier to be applied

Keywords： damping-solvent extraction method structure-unlimited-foundation system spring-damper system artificialdamping limited region finite element method

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Effects of green roof damping and configuration on structural seismic response

Frontiers of Structural and Civil Engineering Pages 1133-1144 doi: 10.1007/s11709-023-0959-9

Abstract: To expand their usage, their inherent damping and layout sensitivity to seismic performance are investigatedResults of preliminary analysis show that a green roof soil can increase localized damping by 2.5% underThe increased damping in the green roof soil is beneficial to the structural performance, i.e., it reduces

Keywords： green infrastructure green roof structural resilience seismic design

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Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceResults indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is the

Keywords： control computational bouncing CFD excessive control

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A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Frontiers in Energy 2009, Volume 3, Issue 4, Pages 465-471 doi: 10.1007/s11708-009-0037-6

Abstract: By establishing a research model for aero-damping in a uniform incoming flow, the three-dimension analyticalalgorithm of the modal aero-damping based on the equivalent viscous damping principle was establishedThe algorithm, which is suited for low-speed flow, to compute aero-damping is based on classical liftThe results show that the aero-damping cannot be neglected comparing with the structure damping.significant to compute the stress and life of blade.

Keywords： compressor different three-dimension analytical classical low-speed

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Development of a seismic design method based on response spectra for building structures

ZHOU Xiyuan, YU Ruifang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 129-141 doi: 10.1007/s11709-007-0014-2

Abstract: The scope of application for the classical damping theory is analyzed and the necessity of the researchon mode-superposition method for non-classical damping is presented.approach for calculation of seismic response of the non-classically damped system with overcritical dampingcalculation method of seismic response for the linear system with multiple eigenvalues; 5) the time-dependent

Keywords： generalization classical damping mode-superposition response calculation formula damping theory

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Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4, Pages 449-455 doi: 10.1007/s11465-011-0240-0

Abstract: layer wised principle, the integrated first order differential equation of an active constrained layer damping

Keywords： active constrained layer damping (ACLD) plate dynamic characteristics semi-analytical method extended

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Data-driven approach to solve vertical drain under time-dependent loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3, Pages 696-711 doi: 10.1007/s11709-021-0727-7

Abstract: , the vertical drain consolidation problem is solved by numerous analytical solutions, such as time-dependentDNN–GA prediction models with three different radial drainage patterns in the smear zone under time-dependent

Keywords： vertical drain artificial neural network time-dependent loading deep learning network genetic algorithm

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Design of damping valve for vehicle hydro pneumatic suspension

DONG Mingming, HUANG Hua, GU Lian

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 97-100 doi: 10.1007/s11465-008-0014-5

Abstract: According to the design features of a hydro pneumatic spring, the necessity of a separate damping valveBased on a 1/4 vehicle linear suspension model, the optimum damping coefficient is worked out and theparameters of the damping valve are determined with the equivalent linearization method.A practical structure of the damping valve is proposed having a small size, high flowrate when the valveBased on bench tests, the damping valve has been found to properly work and be suitable.

Keywords： ability pneumatic necessity flowrate equivalent linearization