Simulating the interaction between a respirator and a headform using LS-DYNA

Jingzhou Yang, Jichang Dai, Ziqing Zhuang

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Respirator use is an integral part of occupational safety and health practice. The challenge is to design respirators with the best fit and highest comfort level for all workers of diverse anthropometry. This paper presents a method to simulate the interaction between a respirator and a headform, and solutions for the universal design of respirators. Three-dimensional digital headforms and respirators are obtained using reverse engineering techniques. The commercial software, LS-DYNA, is used to model and simulate the interaction between a respirator and headform to determine the key factors that affect respirator fit and comfort. Both the respirator and headform are modeled as shell elements and are deformable. The results show that strap forces play an important role in pressure distribution on the face.

Original languageEnglish
Pages (from-to)539-551
Number of pages13
JournalComputer-Aided Design and Applications
Volume6
Issue number4
DOIs
StatePublished - 2009

Keywords

  • Finite element analysis
  • Headform
  • Respirator fit
  • Stress and deformation

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