论文部分内容阅读
本文简介了振动对人体的不良影响以及国内外人体全身振动问题的研究现状,较详细地论述了随机激励法测量线性系统频响函数的基本原理和具体实现,编制了一个在 AppleⅡ上求系统频响函数的程序,提出了一个新的测量人体动态特性(频响函数)的方法,即利用路面的不平度引起车辆的随机振动作为激励源来测量人体的频响函数。对十二名受试者进行测试的结果表明,本文的方法是可行的,并由此法获得了我国人体动态响应的有关资料和数据。
In this paper, the adverse effects of vibration on the human body as well as the research status of human body vibration at home and abroad are briefly introduced. The principle and measurement of frequency response function of linear system by random excitation method are discussed in detail. A system frequency This paper presents a new method to measure the dynamic characteristics of the human body (frequency response function), which is to measure the frequency response function of the human body by using the random vibration of the vehicle as the excitation source by the unevenness of the road surface. The test results of twelve subjects show that the method in this paper is feasible and the relevant data and data about the dynamic response of human body in our country are obtained.