面向性能需求的动态调节消扭悬架参数匹配与动力学研究

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摘要为协调越野车辆抗侧倾性能和通过性能，研究一种新型动态调节消扭悬架系统（DTS）。该系统可提高车辆抗侧倾能力，消除车身的扭转，增强车轮接地性，提高越野性能和安全性。在阐述DTS系统结构和原理的基础上，利用MATLAB建立该系统的动力学模型以及整车14自由度动力学模型；同时提出一种新的悬架参数匹配方法:面向抗侧倾性能和消扭性能需求匹配DTS系统的关键参数；设计蛇形试验、前轮角阶跃输入试验和扭曲路面工况研究装有DTS系统的车辆的动力学性能，并验证参数合理性。结果表明：应用面向性能需求的匹配方法能有效平衡车辆相关性能；该悬架系统能有效减少车辆侧倾角以及消除车身扭转载荷，对车辆越野性和舒适性有一定改善，并且在车辆转向时能增大其不足转向度，提高车辆安全性。

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	胡文1
	吴洋1
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	张农2
	盛企豪1

关键词 ：参数匹配, 动态调节消扭悬架, 车辆动力学, 越野性能

Abstract：To balance the conflict of anti-roll performance and passing ability for off-road vehicle, a new suspension scheme (Dynamic Torsion-elimination Suspension, DTS) was proposed.The vehicle equipped-with a DTS can obtain larger anti-roll moment and better wheel ground adhesion.After the structure depiction, the dynamic model of DTS and a 14 degree-of-freedom vehicle dynamic model were established with MATLAB.The key parameter analysis and matching of DTS were then carried out through a novel method which is based on anti-roll and torsion-elimination performance requirements.The serpentine experiment, steering transient input and asynchronous-sine twist road input were adopted to evaluate the dynamic performance of the proposed DTS and the validity of applied parameters.Simulation results show that this novel suspension system is able to improve a vehicle’s anti-roll performance and passing ability without compromising its riding comfort.Besides, the understeering performance of vehicle is enhanced as well.

Key words： parameter matching dynamic torsion-elimination suspension vehicle dynamic off-road performance

收稿日期: 2017-08-10 出版日期: 2018-12-15

引用本文:

胡文1，吴洋1，陈盛钊1，张邦基1，张农2，盛企豪1. 面向性能需求的动态调节消扭悬架参数匹配与动力学研究[J]. 振动与冲击, 2018, 37(24): 172-180.
HU Wen1, WU Yang1, CHEN Shengzhao1, ZHANG Bangji1, ZHANG nong2, SHENG Qihao1. Parameter matching and kinetic studies of dynamic torsion-elimination suspension based on performance requirements. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(24): 172-180.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I24/172

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