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Mechanism analysis of vehicle shimmy with time-delayed displacement feedback and energy transfer |
Received:October 29, 2016 Revised:April 12, 2017 |
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DOI:10.7511/jslx20161029001 |
KeyWord:shimmy mechanism analytical analysis time delay energy input energy transfer |
Author | Institution |
姜俊昭 |
合肥工业大学 汽车与交通工程学院, 合肥 |
卢剑伟 |
合肥工业大学 汽车与交通工程学院, 合肥 |
杨士钦 |
安徽江淮汽车股份有限公司 乘用车技术中心, 合肥 |
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Abstract: |
This paper analyzes the dynamic mechanism of vehicle shimmy.By using analytic method,it is theoretically proved that vehicle shimmy is a self-excited vibration phenomenon which is caused by displacement feedback with time delay.Moreover,numerical analysis is carried out to reveal the dynamic behavior and mechanism of the shimmy system,which verifies the conclusion of the analytical analysis.Then the energy input and energy transfer are calculated and the results indicate that the value of energy input can be used to evaluate the dynamic response of vehicle shimmy.Based on the analysis of energy transfer,some measures for attenuation of vehicle shimmy are presented at last. |