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vibration 22

vibration control 5

bridge 3

nonlinear vibration 3

MR damper 2

Wind-tunnel test 2

ambient vibration test 2

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bending stiffness 2

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Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4, Pages 441-446 doi: 10.1007/s11465-009-0055-4

Abstract: vibration.When applying the piezoelectric shunt damping technique to passively control structural vibration, theIn this paper, the concept of vibration control efficiency of a piezoelectric shunt damping system isIt comes to a conclusion that the vibration control efficiency of the piezoelectric shunt damping systemthe piezoelectric shunt damping technique.

Keywords： piezoelectric shunt vibration control efficiency clamped plate generalized electromechanical coupling

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Vibration suppression of speed-controlled robots with nonlinear control

Paolo BOSCARIOL,Alessandro GASPARETTO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2, Pages 204-212 doi: 10.1007/s11465-016-0380-3

Abstract:

In this paper, a simple nonlinear control strategy for the simultaneous position tracking and vibrationdamping of robots is presented.The capability of achieving improved trajectory tracking and vibration suppression is shown through experimental

Keywords： industrial robot nonlinear control vibration damping model-free control motion control

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Evaluation of transmissibility for a class of nonlinear passive vibration isolators

Z. K. PENG, Z. Q. LANG, G. MENG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4, Pages 401-409 doi: 10.1007/s11465-012-0349-9

Abstract: characteristics and a comprehensive pattern about how the nonlinear damping characteristic parametersmight affect the force and displacement transmissibility is built for the vibration isolators.into vibration isolators can significantly suppress both the force and displacement transmissibilityThese conclusions are of significant importance in the analysis and design of the nonlinear vibrationisolators with nonlinear anti-symmetric damping.

Keywords： nonlinear vibration volterra series Output Frequency Response Functions (OFRFs) nonlinear damping vibration

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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: Damping is known to have a considerable influence on the dynamic behavior of bridges.The fixed damping ratios recommended in design codes do not necessarily represent the complicated dampingvibration and based on that investigation proposed the stress-dependent damping ratio.damping ratio, respectively.A corrugated steel-web bridge is being used as a case study, and the vibration response of the bridge

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

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The contribution of cross modality to fatigue damage accumulation of structure subjected to random vibration

Zhu Xuewang,Liu Qinglin

Strategic Study of CAE 2008, Volume 10, Issue 10, Pages 36-41

Abstract:

The contribution level of cross modality to vibration response of structureThe larger the damping and the denser the modality, the higher the contribution.In engineering vibration analysis' a system hypothesis with lightly damping and sparse modality isgenerally applied to solve approximately vibration response of structure where the contribution of crossaccumulation of structure can not be neglected even if the structure is characterized with lightly damping

Keywords： cross modality random vibration fatigue damage accumulation random vibration response modality superposition lightly damping and sparse modality system

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Damping Identification of Bridges Under Nonstationary Ambient Vibration

Sunjoong Kim, Ho-Kyung Kim

Engineering 2017, Volume 3, Issue 6, Pages 839-844 doi: 10.1016/j.eng.2017.11.002

Abstract:

This research focuses on identifying the damping ratio of bridges using nonstationary ambient vibrationThe damping ratios of bridges in service have generally been identified using operational modal analysisexcitations while in service, and this violation of the basic assumption can lead to uncertainties in dampingTo improve the accuracy of OMA-based damping estimates, a comparative analysis was performed betweenThe mean value and standard deviation of the damping ratio for the first vertical mode decreased after

Keywords： Damping Operational modal analysis Traffic-induced vibration Nonstationary Signal stationarization Amplitude-modulating

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Characteristic and Shock Damping of Blast Vibration in a Certain Open Pit

Lin Daneng,Chen Shouru,Liu Youping

Strategic Study of CAE 2006, Volume 8, Issue 6, Pages 73-77

Abstract:

To solve the problem of slope caused by blasting vibration damage at a certain iron mine, YBJ-1 blastingvibration seismometer and CD-1 velocity-meter were used to observe the velocity of particle caused bywave in the iron mine were acquired to propose an effective method of controlling the maximum blasting vibrationvelocity, which will keep slope close to blasting area safe from blasting vibration damage.The vibration velocity was proved to be relevant to explosive quantity and the location of testing spot

Keywords： open pit blasting vibration height effects maximum explosive quantity at the same time millisecond delay

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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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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 liftAccording to the analytical equations, the modal aero-damping ratio for different nature frequenciesThe results show that the aero-damping cannot be neglected comparing with the structure damping.

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

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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 modelsover 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.It is shown that in the case of non-deficient systems with various damping models, the modal analysis

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