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本文以半主动悬架与二阶最优控制理论为基础,通过被动悬架阻尼的主动力表示,结合对最优控制力的分解以及最优评价指标、振动加速度功率谱密度函数与系统振动阻尼之间关系的研究,建立了多自由度汽车振动系统在随机输入下以振动加速度功率谱密度函数极小为目标的悬架最优减振器阻尼参数设计的方法,并给出了7自由度汽车振动系统最优减振器阻尼设计实例。
Based on the semi-active suspension and the second-order optimal control theory, this paper presents the main dynamic damping of the passive suspension, the optimal control force decomposition and the optimal evaluation index, the vibration acceleration power spectral density function and the system vibration damping The paper establishes a method to design the damping parameters of the optimal suspension of a multi-degree-of-freedom vehicle vibration system with the minimum of the vibrational acceleration power spectral density function under stochastic input and gives the design of the 7-DOF Damping Design Example of Optimal Vibration Absorber for Automotive Vibration System.