Soft Tissue Stress Distribution in Hip-Legs During Sitting

张宇红 1; 王欣 2; 洪军 2; 邱志惠 2; 韩英 2; 陈娟 2

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Soft Tissue Stress Distribution in Hip-Legs During Sitting

更新时间：2025-12-08

- Soft Tissue Stress Distribution in Hip-Legs During Sitting
- Vol. 42, Issue 5, Pages: 569-572(2008)
- 作者机构：
  
  西安工业大学工业设计系,西安,710032
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB18
- Online First：10 May 2008，
  
  Published：2008
- 稿件说明：
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张宇红 1, 王欣 2, 洪军 2, et al. Soft Tissue Stress Distribution in Hip-Legs During Sitting[J]. 2008, 42(5): 569-572.
DOI：

张宇红 1, 王欣 2, 洪军 2, et al. Soft Tissue Stress Distribution in Hip-Legs During Sitting[J]. 2008, 42(5): 569-572. DOI：

摘要

人体长时间就座引起的疼痛与就座时臀-腿部软组织的应力分布有关

运用ABAUQS和HyperMesh有限元分析软件

构建了人体臀-腿部与座椅接触界面的有限元分析模型

仿真得出了就座时人体臀-腿部软组织的应力分布.根据三维应力分布的特点

通过对X

、Y

和Z

3条路径的分析

同时运用体压分布测量系统对人-椅界面压力的分布进行了测量.仿真试验结果表明

当人体就座时

臀-腿部软组织内部的应力远大于界面应力

最大应力发生在坐骨结节下方

并向四周逐渐减小

骨骼与软组织界面层的应力最大

而肌肉层与皮肤-脂肪层界面的应力最小.该研究结果可使人们更好地理解长时间就座引起疼痛的原因

同时也为座椅人性化设计提供了有效的参考数据.

Abstract

The pressure sores due to long-term sitting are often related to soft tissue stress distribution in hip-legs. Finite element(FE)models of the interface between hip-legs and seat pan are established with ABAUQS and HyperMesh to obtain the soft tissue stresses distribution in hip-legs. The stress distribution is analyzed along three central paths(X

and Z

)

and the body pressure distribution within the human-seat interface is measured simultaneously. The FE analysis shows that the stresses in soft tissue get much more violent than them in the interface and the maximum stress is located under the ischial tuberosities. The stress in the bone-tissue interface is the maximal and the stress in the muscle-fat interface is the minimal. The vera

city of FE analysis is estimated by the comparison between the data obtained by measure and simulation.

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references

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