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| Performance of track vehicle suspension system based on inerters |
| CHEN Wentao2,3, FENG Zhouquan1,2, CHEN Zhengqing1,2, FAN Youquan3, NIU Huawei1,2 |
1.State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China;
2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China;
3.Zhuzhou Lince Group Holding Co, Ltd, Zhuzhou 412001, China |
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Abstract In order to study effects of inerter on vibration response and vibration isolation performance of a track vehicle inerter-spring-damper (ISD) suspension structure, its vertical dynamic model was established.The forced vibration theory was used to analyse the system’s vibration response characteristics and vibration isolation performance.The results showed that there are minimum value points on curves of amplitude, amplitude amplification factor, speed one and acceleration one of ISD structure versus its mass ratio, and these optimal mass ratios are functions of frequency ratio and damping one; the suggested ranges of damping ratio and mass one are ξ<0.2 and 0.1<μ<0.3, within these ranges, the system’s vibration isolation performance can be lifted to the maximum extent; the larger the mass ratio, the smaller the phase difference; relations of critical frequency ratio and resonance point frequency ratio versus mass ratio are derived, the larger the mass ratio, the smaller the critical frequency ratio and resonance point one, and amplitude amplification ratio at resonance point and width of resonance region obviously decrease; the study results provide a new way for track vehicle ISD suspension structure’s vibration isolation performance analysis and lightweight study, and a reference for choosing key parameters in ISD structure design.
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Received: 07 March 2019
Published: 28 November 2019
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