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Effects of Engineering Factors on Structure Response in Vibration Test

Chen Youling,Zhu Xuewang,Zhu Changchun

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 62-65

Abstract:

Effects of engineering factors such as fixture boundaries, assembly connections, dynamic vibrationloads position and level, etc., on response of complicated structure in vibration test are investigatedIt is shown that evaluations on the response of structure in service are applicable using vibration test

Keywords： complicated structure     vibration test     structure response     engineering factor    

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Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 224-233 doi: 10.1007/s11465-017-0413-6

Abstract:

This paper describes an application of magneto-rheological (MR) grease dampers as seismic dampers for a three-story steel structure. MR fluid is widely known as a smart material with rheological properties that can be varied by magnetic field strength. This material has been applied to various types of devices, such as dampers, clutches, and engine mounts. However, the ferromagnetic particles dispersed in MR fluid settle out of the suspension after a certain interval because of the density difference between the particles and their carrier fluid. To overcome this defect, we developed a new type of controllable working fluid using grease as the carrier of magnetic particles. MR grease was introduced into a cylindrical damper, and the seismic performance of the damper was subsequently studied via numerical analysis. The analysis results of the MR grease damper were compared with those of other seismic dampers. We confirmed that the MR grease damper is an effective seismic damper.

Keywords： MR grease damper     seismic damper     vibration control     structural response     FEM analysis    

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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:

In this study, the concept of Output Frequency Response Functions (OFRFs) is applied to representcharacteristic parameters might affect the force and displacement transmissibility is built for the vibrationoutputs of the nonlinear isolators, and the introduction of a nonlinear anti-symmetric damping into vibrationThese conclusions are of significant importance in the analysis and design of the nonlinear vibration

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

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Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 249-254 doi: 10.1007/s11709-009-0038-x

Abstract: Firstly, according to the random vibration theory, the effect of fluctuating wind on the tower can bemodeled as a 19-dimensional correlated random process, and the wind-induced vibration analysis of theFinally, a dynamic model is proposed to study the wind-induced vibration control analysis using viscousfluid dampers, and the optimal damping coefficient is obtained regarding the wind-induced response ofAnalysis results show that the maximum peak response of the tower under dynamic wind load is far beyond

Keywords： high-rise structure     wind-induced response     fluid viscous damper     vibration control    

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Hydroelastic model experimental study on large scale high arch dam vibration by discharge flow

Ma Bin,Lian Jijian,Yang Min

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 23-29

Abstract: Overall test and analysis of the modals and vibration response of dam and appurtenant structure underThe equivalent load is determined by inverse analysis method for flow induced vibration, then the dynamicresponse of the dam is obtained and influence of flow-induced vibration is assessed.

Keywords： Laxiwa arch dam     hydroelastic model     flow-induced vibration     vibration response     inverse analysis    

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Prediction of vibration response of powerhouse structures based on LS-SVM optimized by PSO

Lian Jijian,He Longjun,Wang Haijun

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 45-50

Abstract:

The vibration of powerhouse structures is mainly induced by hydraulicsprototype observation data of Ertan Hydropower Station, the paper analyzes the coupling effect between vibrationof units and powerhouse,and then the vibration response forecasting model of the powerhouse is built

Keywords： powerhouse     coupled vibration     particle swarm optimization algorithm     least squares support vector machines     response prediction    

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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 structureIn 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 crossand irregular factors of spectral diagram in time domain vibration analysis and change the results ofunder random vibration is analysised with Miner's linear damage ruler.

Keywords： cross modality     random vibration     fatigue damage accumulation     random vibration response     modality superposition    

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The study of forced vibration for threetower suspension bridge under moving loads

Feng Zhaoxiang,Chen Liang and Miu Changqing

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 80-84

Abstract: finite element model are analyzed and then the effects of different moving speeds and loads on dynamic responseThe response of force and displacement of three-tower twospan continuous suspension bridge under simply

Keywords： dynamic characteristics     forced vibration     response     load amplification factor    

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Wind resistance challenges and fundamental research on long-span bridges

Xiang Haifan,Ge Yaojun

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 8-21

Abstract: of long span bridges, including flutter instability and control of suspension bridges, wind induced vibrationof cable-stayed bridges and control of wind-rain induced cable vibration, vortex shedding vibrationspan have high enough critical flutter speed, but the main aerodynamic concern is rain-wind induced vibrationExcept one example of vortex-induced vibration, long-span arch bridges have no wind resistance problems

Keywords： suspension bridge     cable stayed bridge     arch bridge     flutter instability     buffeting response     vortexinduced vibration     wind-rain induced vibration    

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Vibration characteristics and machining performance of a novel perforated ultrasonic vibration platform

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0730-2

Abstract: Ultrasonic vibration-assisted grinding (UVAG) is an advanced hybrid process for the precision machiningIts performance considerably influences the vibration amplitude and resonant frequency.In this work, a novel perforated ultrasonic vibration platform resonator was developed for UVAG.vibration characteristics.The performance of the vibration platform was evaluated by the vibration tests and UVAG experiments of

Keywords： ultrasonic vibration-assisted grinding     perforated ultrasonic vibration platform     vibration characteristics    

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Recent development of vibration utilization engineering

WEN Bangchun

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 1-9 doi: 10.1007/s11465-008-0017-2

Abstract: The utilization of vibration and wave, which was developed during the latter half of the 20th centuryThus, due to its necessity in industry and daily life, extensive research has been devoted to vibrationIn this paper, vibration utilization is classified into linear or non-linear vibrations, waves, and electric-magneticSome research results about vibration utilization engineering are described.

Keywords： utilization engineering     non-linear     vibration     vibration utillization     utillization engineering    

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Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration

Guilian YI, Yunkang SUI, Jiazheng DU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 229-234 doi: 10.1007/s11465-011-0128-z

Abstract:

To reduce vibration and noise, a damping layer and constraint layer are usually pasted on the innersurface of a gearbox thin shell, and their thicknesses are the main parameters in the vibration andThe normal acceleration of the point on the gearbox surface is the main index that can reflect the vibrationcharacteristics of the whole structure, and the vibration acceleration level is adopted to measure thedegree of the vibration and noise.

Keywords： Abaqus secondary development     Python language     vibration and noise reduction     K-S function     vibration acceleration    

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Similitude design for the vibration problems of plates and shells: A review

Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 253-264 doi: 10.1007/s11465-017-0418-1

Abstract:

Similitude design plays a vital role in the analysis of vibration and shock problems encountered inengineering practice and summarizes the major achievements of the dynamic similitude theory in structural vibrationdiscusses the existing problems and the potential of the dynamic similitude theory for the analysis of vibration

Keywords： review     dynamic     similitude     vibration     model test    

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Multi-harmonic forced vibration and resonance of simple beams to moving vehicles

Frontiers of Structural and Civil Engineering   Pages 981-993 doi: 10.1007/s11709-023-0979-5

Abstract: The forced resonance amplification characteristics of the fundamental mode for beam response estimation

Keywords： forced vibration     linear Euler beam     moving load     harmonic structure     frequency modulation     end restraints    

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Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes

Masoud MASOUMI,Mehdi MASOUMI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 142-149 doi: 10.1007/s11465-014-0292-z

Abstract: it is used to model the carbon nanotubes with the aim of the investigating into their longitudinal vibration

Keywords： continuum theory     differential quadrature method     nanorod     longitudinal vibration    

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Title Author Date Type Operation

Effects of Engineering Factors on Structure Response in Vibration Test

Chen Youling,Zhu Xuewang,Zhu Changchun

Journal Article

Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Journal Article

Evaluation of transmissibility for a class of nonlinear passive vibration isolators

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

Journal Article

Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Journal Article

Hydroelastic model experimental study on large scale high arch dam vibration by discharge flow

Ma Bin,Lian Jijian,Yang Min

Journal Article

Prediction of vibration response of powerhouse structures based on LS-SVM optimized by PSO

Lian Jijian,He Longjun,Wang Haijun

Journal Article

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

Zhu Xuewang,Liu Qinglin

Journal Article

The study of forced vibration for threetower suspension bridge under moving loads

Feng Zhaoxiang,Chen Liang and Miu Changqing

Journal Article

Wind resistance challenges and fundamental research on long-span bridges

Xiang Haifan,Ge Yaojun

Journal Article

Vibration characteristics and machining performance of a novel perforated ultrasonic vibration platform

Journal Article

Recent development of vibration utilization engineering

WEN Bangchun

Journal Article

Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration

Guilian YI, Yunkang SUI, Jiazheng DU

Journal Article

Similitude design for the vibration problems of plates and shells: A review

Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG

Journal Article

Multi-harmonic forced vibration and resonance of simple beams to moving vehicles

Journal Article

Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes

Masoud MASOUMI,Mehdi MASOUMI

Journal Article