摘要
道路引起的振动通过轮胎、悬架、车身和座椅传递给人体,座椅设计对提高乘坐舒适性起到至关重要的作用。文中基于车辆的乘坐动力学特性和试验人体对振动的响应,建立坐姿人体多体动力学模型,由大腿、骨盆、躯干、头部和心脏5个部分组成。推导靠背角度在0°,10°,20°,30°时座椅的传递率和总吸收功率。结果表明:适度增加靠背倾角可以降低座椅传递率和总加权吸收功率,但过多增加会导致座椅传递率出现不规则上升,降低舒适性。针对不同靠背倾角对人体振动的响应研究,可以有效用于载运工具座椅设计工作。
Road-induced vibrations are transmitted to the human body through tires,suspension,body and seats,and seat design plays a crucial role in improving ride comfort.Based on the riding dynamics of the vehicle and the response of the test human body to vibration,a multi-body dynamic model of the sitting human body is established,which consists of five parts:thigh,pelvis,trunk,head and heart.The transmittance and total absorbed power of the seat at backrest angles of 0°,10°,20°and 30°are derived.The results show that moderately increasing the backrest inclination angle can reduce the seat transmission rate and the total weighted absorbed power,but too much increase will lead to an irregular increase in seat transmission rate and reduce comfort.The response of different backrest inclination angles to human vibration can be effectively used in the design of tool seats.
作者
陈满
赵清海
杨景周
CHEN Man;ZHAO Qing-hai;YANG Jing-zhou(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266073)
出处
《机械设计》
CSCD
北大核心
2023年第2期77-83,共7页
Journal of Machine Design
基金
国家自然科学基金资助项目(51875396)。
关键词
乘坐舒适性
多体动力学模型
靠背倾角
传递率
加权吸收功率
ride comfort
multi-body dynamics model
backrest inclination
transmission rate
weighted absorbed power
