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| Study and simulation on human body vibration characteristics of human-vehicle system in dynamic environment |
| ZHANG E1, LIU Ming-Li1, SHAO Xiao-Chun1, DAN Jun-Yong2, WANG Dong-Sheng2 |
1. School of Mechanical Engineering, Xian Jiaotong University, Xian 710049, China；
2. Xian No. 206 Institute, China North Industries Group Corporation, Xian 710087, China |
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Abstract Aiming at the analysis requirements of human-machine interface of mechanical system in dynamic environment, by adopting the method of combining human-body dynamic model and human-body vibration experiment, research on human-body vibration characteristics of human-machine system in dynamic environments was carried out and simulated. According to multi-body dynamics, a vertical vibration model with 5-DOF for a seated body was established. The curve of transfer function （the curve of frequency response function） was obtained by human body vibration experiment. Adopting system identifying method, the dynamic parameters of human body （equivalent quality, equivalent stiffness and equivalent damping） were obtained. On such basis, with the simulation analysis on human body vibration model by MATLAB/Bode, the vibration character of human segments （frequency response） was concluded. Furthermore, with human body vibration simulation by ADAMS/Vibration software system, it was verified that the results of human body vibration character of 5-DOF human model are effective. The research results are valuable to analyze human dynamic response of human-vehicle system. And they can also provide a significant reference for human-machine interface design in mechanical system and a guidance to evaluate comfort of human body dynamic response of human-machine．
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Published: 28 June 2009
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动态环境人-车系统的人体振动特性研究与仿真
针对动态环境机械系统人-机界面设计的分析需要,应用人体动力学建模与人体振动实验相结合方法进行动态环境人-机系统的人体振动特性研究与仿真分析.依据多体系统动力学原理建立了人-车系统五自由度（5-DOF）坐姿人体全身垂直振动模型,经人体振动实验得到坐姿人体的传递函数曲线,采用参数识别方法获得人体的动力学参数,在此基础上,通过MATLAB/Bode对人体振动模型的模拟分析,得到了人体各部分的振动特性.用ADAMS/Vibration软件系统进行人体振动仿真试验,验证了5-DOF人体振动模型的人体振动特性研究结果的有效性.研究结果对于分析人-车系统的人体动力响应有着重要价值,可为动态环境机械系统的人-机界面设计提供重要参考,对客观评价人体坐姿的舒适性有指导作用.
关键词：
动态环境,
人-机系统,
人体模型,
参数识别,
振动特性
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