A Novel Algorithm for Determining Contact Area Between a Respirator and a Headform.
The contact area, as well as the contact pressure, is created when a respiratory protection device (a respirator or surgical mask) contacts a human face. A computer-based algorithm for determining the contact area between a headform and N95 filtering facepiece respirator (FFR) was proposed. Six N95...
| Publicado en: | Journal of Occupational & Environmental Hygiene Vol. 11; no. 4; pp. 227 - 238 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Apr2014
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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=104040896&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104040896 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459624 V1L jtl: Journal of Occupational & Environmental Hygiene issn: 15459624 maglogo: Y pubinfo: dt: Apr2014 vid: 11 iid: 4 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104040896 94723875 10.1080/15459624.2013.858818 NLM24579752 104040896 ppf: 227 ppct: 11 formats: fmt: @attributes: type: P tig: atl: A Novel Algorithm for Determining Contact Area Between a Respirator and a Headform. aug: au: Lei, Zhipeng Yang, James Zhuang, Ziqing affil: Human-Centric Design Research Lab, Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas sug: subj: Algorithms Respiratory Protective Devices Models, Anatomic Head Occupational Exposure Prevention and Control Human Texas Computer-Aided Design Head Circumference Finite Element Analysis Equipment Design One-Way Analysis of Variance Descriptive Statistics Funding Source ab: The contact area, as well as the contact pressure, is created when a respiratory protection device (a respirator or surgical mask) contacts a human face. A computer-based algorithm for determining the contact area between a headform and N95 filtering facepiece respirator (FFR) was proposed. Six N95 FFRs were applied to five sizes of standard headforms (large, medium, small, long/narrow, and short/wide) to simulate respirator donning. After the contact simulation between a headform and an N95 FFR was conducted, a contact area was determined by extracting the intersection surfaces of the headform and the N95 FFR. Using computer-aided design tools, a superimposed contact area and an average contact area, which are non-uniform rational basis spline (NURBS) surfaces, were developed for each headform. Experiments that directly measured dimensions of the contact areas between headform prototypes and N95 FFRs were used to validate the simulation results. Headform sizes influenced all contact area dimensions (P< 0.0001), and N95 FFR sizing systems influenced all contact area dimensions (P< 0.05) except the left and right chin regions. The medium headform produced the largest contact area, while the large and small headforms produced the smallest. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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