含时滞的单自由度半主动悬架系统的动力学分析

申永军 祁玉玲 杨绍普 邢海军

振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 38-40.

PDF(919 KB)
PDF(919 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 38-40.
论文

含时滞的单自由度半主动悬架系统的动力学分析

  • 申永军1 祁玉玲 杨绍普 邢海军
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Dynamics analysis on SDOF semi-active control suspension system with time-delay

  • Shen Yong-Jun Qi Yu-Ling Yang Shao-Pu Xing Hai-Jun
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摘要

对含时滞的单自由度半主动开关控制悬架系统进行了研究。首先对系统进行无量纲化处理,然后利用平均法求出了系统方程的一次近似解析解。通过解析解与数值解得到的幅频曲线进行比较,验证了本文方法和结果的正确性。最后对系统的稳定性做了分析,得到了导致系统产生不稳定运动的条件和临界时滞,发现系统的稳定性随着时滞会发生周期性变化。

Abstract

A single degree-of-freedom (SDOF) semi-active on-off control suspension system with time-delay is studied in this paper. After the dimensionless form is deduced, the first-order approximately analytical solution is obtained by the averaging method. The comparison of the amplitude-frequency curves obtained by the analytical solution and the numerical one shows the correctness of the method and results in this paper. At last, the system stability is analyzed, and the instability condition and the critical time-delay are presented. The periodical change of stability with the time-delay is also illustrated.

关键词

半主动悬架 / 开关控制 / 时滞 / 平均法 / 稳定性

Key words

semi-active suspension / on-off control / time-delay / averaging method / stability

引用本文

导出引用
申永军 祁玉玲 杨绍普 邢海军. 含时滞的单自由度半主动悬架系统的动力学分析[J]. 振动与冲击, 2012, 31(24): 38-40
Shen Yong-Jun Qi Yu-Ling Yang Shao-Pu Xing Hai-Jun. Dynamics analysis on SDOF semi-active control suspension system with time-delay[J]. Journal of Vibration and Shock, 2012, 31(24): 38-40

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