基于JACK的不同身高笔记本电脑使用者的脊椎受力状态研究  

Research on Spine Stress State of Laptop Users with Different Heights Based on JACK

作　　者：郭增辉 方斌[1,2] 梁文昊 陈志远 GUO Zeng-hui;FANG Bin;LIANG Wen-hao;CHEN Zhi-yuan(School of Mechanical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Shandong Institute of Mechanical Design and Research,Jinan 250031,China)

机构地区：[1]齐鲁工业大学(山东省科学院)机械工程学院,济南250353 [2]山东省机械设计研究院,济南250031

出　　处：《人类工效学》2024年第4期42-47,54,共7页Chinese Journal of Ergonomics

基　　金：国家自然基金项目(52075275)。

摘　　要：目的在探讨笔记本电脑放置位置对使用者胸椎、腰椎受力和头部屈曲的影响。方法通过Jack软件构建了P 1、P 5、P 50、P 95和P 99的数字人仿真办公模型,分析了屏幕在不同垂直距离和水平距离下人体spinetT1/T2、spineL4/L5受到的力矩和Head Flexion的角度,使用SPSS对获得的数据进行相关性分析。结果在坐姿使用笔记本电脑时,用户的身高越高,其胸椎和腰椎所承受的力矩也越大。笔记本电脑屏幕的高度对使用者的影响显著高于水平距离的影响。结论通过调整笔记本电脑的放置位置,特别是屏幕的高度,可以有效降低不同身高群体颈部和腰部的疲劳和疼痛症状,减少对身体的损伤。Objective This study was to investigate the effect of the position of laptop computer on the stress of thoracic vertebra and lumbar vertebra and head flexion.Methods Digital human simulation office models(P 1,P 5,P 50,P 95,and P 99)were created using Jack.The torque of spinetT1/T2,spineL4/L5 of human body and the angle of head flexion are analyzed under different vertical and horizontal distances of the screen.Correlation analysis was performed with SPSS.Results The study revealed that individuals with greater height experienced higher torque on their thoracic and lumbar vertebrae when using a laptop in a seated position.Furthermore,the impact of laptop screen height on these torques and head flexion degree was significantly more pronounced than that of horizontal distance.Conclusion Adjusting the position of a laptop computer,particularly the screen height,can effectively alleviate fatigue and pain symptoms in the neck and waist for individuals of different heights while reducing potential harm to their bodies.

关 键 词：职业健康 人因工程 笔记本电脑 JACK 脊椎受力 仿真 相关性分析 

分 类 号：R318.01[医药卫生—生物医学工程] TB18[医药卫生—基础医学]