噪声与振动控制2017，Vol.37Issue(4)：11-14,24,5.DOI:10.3969/j.issn.1006-1355.2017.04.003
含有输入时滞的悬架系统的最优控制
Optimal Control of a Suspension System with Input Time-delay
摘要
Abstract
With the application of active control suspension system, time-delay phenomena are inevitable in the automobile suspension system. Based on the time-delay, a 2-DOF active suspension system is studied. The traditional control law without considering the time-delay and the optimal control law with time-delay treatment through state transformation and system discretization methods are respectively applied to the system control. The control system responses and stability characteristics are compared. Theoretical analysis and numerical simulation show that when the delay value is small, the system remains stable. But, if it reaches a certain value, the system response characteristics may change qualitatively, even the system diverges and becomes instable. Using the state transition method to deal with the time lag can guarantee the stability of the active control system. The control law can reflect the influence of input delay on the governing equations pertinently.关键词
振动与波/时滞系统/主动悬架/最优控制/数值计算Key words
vibration and wave/time-delay system/active suspension/optimal control/numerical calculation分类
交通工程引用本文复制引用
董天夫,方明霞..含有输入时滞的悬架系统的最优控制[J].噪声与振动控制,2017,37(4):11-14,24,5.基金项目
国家自然科学基金资助项目(11032009) （11032009）
国家自然科学基金资助项目(51075303) （51075303）
