Numerical finite element modeling of custom car seat using computer aided design

A good cushion can not only provide the sitter with a high comfort, but also control the distribution of the hip pressure to reduce the incidence of diseases. The purpose of this study is to introduce a computer-aided design (CAD) modeling method of the buttocks-cushion using numerical finite elemen...

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Bibliographic Details
Published inSheng wu yi xue gong cheng xue za zhi Vol. 31; no. 1; p. 64
Main Authors Huang, Xuqi, Singare, Sekou
Format Journal Article
LanguageChinese
English
Published China 01.02.2014
Subjects
Automobiles
Buttocks - anatomy & histology
Computer-Aided Design
Finite Element Analysis
Humans
Pressure
Software
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Summary:A good cushion can not only provide the sitter with a high comfort, but also control the distribution of the hip pressure to reduce the incidence of diseases. The purpose of this study is to introduce a computer-aided design (CAD) modeling method of the buttocks-cushion using numerical finite element (FE) simulation to predict the pressure distribution on the buttocks-cushion interface. The buttock and the cushion model geometrics were acquired from a laser scanner, and the CAD software was used to create the solid model. The FE model of a true seated individual was developed using ANSYS software (ANSYS Inc, Canonsburg, PA). The model is divided into two parts, i.e. the cushion model made of foam and the buttock model represented by the pelvis covered with a soft tissue layer. Loading simulations consisted of imposing a vertical force of 520N on the pelvis, corresponding to the weight of the user upper extremity, and then solving iteratively the system.
ISSN:1001-5515