基于键图的车辆磁流变座椅建模与控制  

Modelling and control of vehicle magnetorheological seats based on bond graph

作　　者：高芳[1] 赵强[2] 李瑰贤[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001 [2]东北林业大学交通学院,哈尔滨150040

出　　处：《中国科技论文》2012年第11期818-821,共4页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(200802251020);中国博士后基金资助项目(20070420160);中央高校基本科研业务费资助项目(DL09CB02)

摘　　要：分析和建立了人体-座椅的五自由度运动的物理模型以及磁流变阻尼器的修正Bouc-Wen模型,进而提出了车辆磁流变座椅的功率键合图模型,在20-Sim中给出了键合图模型的具体实现。基于此键图模型设计了比例-积分-微分(PID)控制算法。仿真结果表明:该键图模型能够较准确描述整个系统的动态特性,对人体座椅的半主动控制研究具有参考作用。A five degree-of-freedom（DOF） physical model for human body-seat and a modified Bouc-Wen model of magnetorheological damper are established and discussed.Based on these two models,a power bond-graph model is further presented for the vehicle magnetorheological seats.The bond-graph model is completed with the 20-Sim software.A proportion-integrationdifferentiation（PID） control algorithm is designed based on this bond graph model.Simulation shows that this model can accurately describe the dynamic characteristics of the whole system and provides a valued reference for the semi-active control of human body-seat.

关 键 词：载运工具运用工程 磁流变座椅 键图 模型 控制 

分 类 号：U463.836[机械工程—车辆工程]