汽车座椅调节参数对体压分布的影响分析  

Analysis on Influence on Automobile Seat Adjustment Parameters on Body Pressure Distribution

作　　者：郭巍[1] 周蒙蒙 范涛 彭强 阮金伟 GUO Wei;ZHOU Mengmeng;FAN Tao;PENG Qiang;RUAN Jinwei(School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学汽车工程学院,湖北武汉430070

出　　处：《湖南大学学报（自然科学版）》2023年第6期38-44,共7页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金青年基金资助项目(51605356);中国教育部创新研究团队发展规划资助项目(IRT_17R83)。

摘　　要：针对汽车座椅调节参数对体压分布的影响,选择靠背角度、座椅高度、滑轨位置3个参数作为因子,设计三因子五水平的正交试验,开展对95百分位、50百分位人体以及人体假人模型装置(H-Point Machine,HPM)在不同调节参数下的体压分布采集试验.对采集的体压数据进行去噪处理和提取体压指标,采用灰色关联度分析方法,分析与体压分布指标关联度较大的因子;对与体压指标关联度较大的因子进行单因子试验,描述各体压指标在单因子动态调整下的变化情况.结果表明,靠背角度和滑轨位置对体压分布影响较大.当靠背角度增大时,不同百分位驾驶员的靠背体压指标增大,坐垫整体体压指标略微变小.当滑轨位置增大时,95百分位人体靠背体压指标变小,坐垫接触面积变小;50百分位人体靠背体压指标变化较小,坐垫接触面积变小.Considering the influence of car seat adjustment parameters on body pressure distribution,three parameters of seat back angle,seat height,and the seat fore-aft position were selected as factors.The orthogonal test of three factors and five levels was designed,and the collection experiment of body pressure distribution of 95th percentile,50th percentile human and H-Point Machine(HPM)under different adjustment parameters was carried out.Firstly,the collected body pressure data weredenoised and extracted from the body pressure index,and gray correlation analysis was used to analyzethe factors with a large correlation with body pressure distribution index.Then single-factor experiments were performed on factors with a large correlation with the body pressure index,describing the change of each body pressure index under the dynamic adjustment of a single factor.The results show that seat back angle and the seat fore-aft position have a great influence on the body pressure distribution.When the back angle increases,the backrest body pressure index of different percentile human increases,and the overall body pressure index of the cushion becomes slightly smaller.When the position of the seat fore-aft increases,the 95 th percentile human backrest body pressure index decreases and the cushion contact area decreases,while the 50 th percentile human backrest body pressure index changes little and the cushion contact area decreases.

关 键 词：汽车座椅 压力分布 座椅调节参数 灰色关联度分析 

分 类 号：U461.91[机械工程—车辆工程]