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首页> 外文期刊>Applied Mechanics and Engineering >COMPARISON OF CONTACT STRESS DISTRIBUTION FOR FOAM SEAT AND SEAT OF AUXETIC SPRING SKELETON
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COMPARISON OF CONTACT STRESS DISTRIBUTION FOR FOAM SEAT AND SEAT OF AUXETIC SPRING SKELETON

机译：泡沫座椅与奥氏体弹簧骨架的接触应力分布比较

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摘要

The objective of this paper is to present and compare the results of numerical solutions of contact problem for two types of seats subjected to typical sitting loadings. The firs t seat is made of a typical hyperelastic foam, the other is designed with an auxetic polyamid spring skeleton. Computer simulations of the seat structure under a typical static loading exerted by a human body are performed by means of ABAQUS FEA. The model provides an insight into deformation modes and stress field in relation to geometric and material parameters of the seat structure.The other type of seat, due to the fact of global auxecity and progressive springs characteristics reduces contact stress concentrations, giving an advantegous distribution of pressure and provides the sensation of physical comfort. The proper seat skeleton shape leads to an improvement of ergonomic quality.
机译：本文的目的是介绍并比较两种典型座位承受力下的座椅接触问题的数值解的结果。第一个座椅是由典型的超弹性泡沫制成的，另一个则设计成带有膨胀聚酰胺弹簧骨架。借助ABAQUS FEA对在典型的人体静态负载下的座椅结构进行计算机模拟。该模型提供了与座椅结构的几何和材料参数有关的变形模式和应力场的洞察力。另一种类型的座椅，由于具有全球辅助性和渐进式弹簧特性，因此降低了接触应力集中，从而有利地分配了压力并提供身体舒适感。正确的座椅骨架形状可提高人体工程学质量。

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