摘要
针对由电磁反力作动器与被动悬架构成的混合型主动悬架系统,建立了1/4车辆模型,在Matlab环境下计算动力吸振器分别安装在悬挂质量和非悬挂质量时的车身响应特性,以分析作动器参数及不同安装位置对平顺性的影响。结果表明:电磁反力作动器布置在非悬挂质量环节比较有利。对作用在非悬挂质量环节的作动器,以吸振器状态进行了参数优化,并就混合型悬架与被动悬架的车身幅频特性进行了比较,分析混合型主动悬架作动器与轮胎之间的力传递特性,指出用车辆不同路面下被动悬架的轮胎最大动载荷,作为选择作动器控制能力的参考依据。
In order to improve the performance of conventional suspension system,a hybrid active suspension system,which comprises an electromagnetic counter-force actuator and passive suspension,is studied regarding its matching method of the actuator and the passive suspension.A model for a hybrid active suspension system of a quarter of car is established and the unsprung mass accelerations are simulated to analyze the influence of the parameter and mounting position of the actuator on the riding comfort.It is found that the hybrid active suspension system can provide better riding comfort for passengers when the dynamic absorber is set on the position of the unsprung mass.In the other cases,parameter optimization is done for the dynamic absorber,and the amplitude-frequency characteristics of the hybrid suspension and passive suspension are analyzed and compared.The characteristic of force transfer between the actuator and the tires is analyzed.It is pointed out that the maximum value of the dynamic force of the tire excited by road unevenness can be employed to choose actuator＇s controlling force.The results can provide helpful guidance for design and development of the similar active suspensions.
出处
《噪声与振动控制》
CSCD
北大核心
2010年第5期1-5,共5页
Noise and Vibration Control
关键词
振动与波
主动悬架
振动控制
参数匹配
优化设计
vibration and wave
active suspension
vibration control
parameter matching
optimal design
