Headform and N95 Filtering Facepiece Respirator Interaction: Contact Pressure Simulation and Validation.
This article presents a computational and experimental study of contact pressure between six N95 filtering facepiece respirators (FFRs) and five newly developed digital headforms (small, medium, large, long/narrow, and short/wide). Contact interaction is simulated using the finite element method and...
| Publicado en: | Journal of Occupational & Environmental Hygiene Vol. 9; no. 1; pp. 46 - 59 |
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| Autores principales: | , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jan2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104561502&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104561502 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459624 V1L jtl: Journal of Occupational & Environmental Hygiene issn: 15459624 maglogo: Y pubinfo: dt: Jan2012 vid: 9 iid: 1 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104561502 74688741 10.1080/15459624.2011.635130 NLM22168255 104561502 ppf: 46 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Headform and N95 Filtering Facepiece Respirator Interaction: Contact Pressure Simulation and Validation. aug: au: Lei, Zhipeng Yang, Jingzhou (James) Zhuang, Ziqing affil: Human-Centric Design Research Lab, Department of Mechanical Engineering, Texas Tech University sug: subj: Occupational Exposure Prevention and Control Respiratory Protective Devices Computer-Aided Design Pressure Comfort Human Texas Finite Element Analysis Funding Source Head Anatomy and Histology Face Anatomy and Histology Models, Anatomic Poisson Distribution Descriptive Statistics ab: This article presents a computational and experimental study of contact pressure between six N95 filtering facepiece respirators (FFRs) and five newly developed digital headforms (small, medium, large, long/narrow, and short/wide). Contact interaction is simulated using the finite element method and validated by experiments using a pressure mapping system. The headform model has multiple layers: a skin layer, muscle layer, fatty tissue layer, and bone layer. Each headform is divided into five parts (two parts for the cheeks, one part for the upper forehead, one part for the chin, and one part for the back side of the head). Each respirator model comprises multiple layers and two straps. The simulation process has two stages for each respirator/headform combination. The first stage is to wrap the straps around the back of the headform and pull the respirator away from the face. The second stage is to release the respirator so that the respirator moves toward the face. Strap forces and contact interactions are generated between the respirators and the headforms. Meanwhile, a real-time surface pressure mapping system is used to record the pressures at six key locations to validate the computational results. There is a strong correlation between computational and experimental results (R2 = 0.88). By comparing the pressure values from simulations and experiments, we have validated the simulation models. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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