基于惯容器的半主动座椅悬架控制和优化  

Control and Optimization of Semi-active Seat Suspension Based on Inerter

作　　者：赵强[1] 张娜[1] 岳永恒[1] ZHAO Qiang;ZHANG Na;YUE Yong-heng(College of Traffic and Transportation,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学交通学院

出　　处：《控制工程》2019年第12期2311-2316,共6页Control Engineering of China

基　　金：黑龙江省留学归国人员科学基金资助项目(LC2015019)

摘　　要：双层隔振具有较好的减振效果,但是应用于车辆时其中间质量会增加汽车荷载质量,为解决此问题用惯容器替代双层隔振中的中间质量,并将其应用于某型卡车座椅悬架。首先提出了包括磁流变阻尼器、惯容器等在内的座椅悬架结构,推导了座椅-人体运动微分方程。根据上述方程设计了基于模型(基于座椅悬架动力学模型)的控制策略,在Simulink中搭建了相应仿真模型,并采用自由搜索算法进行了悬架结构参数和控制器参数的联合优化,对优化结果取人体易发生共振的3个频率的复合激励以及随机激励进行测试都表明此座椅悬架机构及控制策略具有较好减振效果。Dual-layer vibration isolation has good vibration attenuation effect, but its application in vehicle aggravates the vehicle load additionally. To solve this problem, this paper replaces the intermediate mass of dual-layer vibration isolation with Inerter, and further applies it into vehicle seat suspension. This paper first proposed a new seat suspension structure including magneto-rheological damper and Inerter, and derived the seat-human body motion differential equations. Based on these equations this paper presented a model-based(based on seat suspension dynamics model) control scheme, established the corresponding Simulink model, and optimized the parameters of both the seat structure and its controller with the Free-Search(FS) algorithm. This paper further completed the simulation tests using a compound excitation of three frequencies where the driver is easy to resonate,as well as a random excitation. These tests show that the proposed seat structure and controller parameters have better vibration attenuation effect.

关 键 词：磁流变座椅 惯容器 基于模型的控制 自由搜索算法 

分 类 号：TP391.8[自动化与计算机技术—计算机应用技术]