Quantitative validation of 3D garment simulation software for determination of air gap thickness in lower body garments

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Mert, E.^1,2 ; Psikuta, A.^1 ; Arevalo, M.^3 ; Charbonnier, C.^4 ; Luible-Bär, C.^3 ; Bueno, M.A.^2 ; Rossi, R.M.^1

Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St Gallen, Switzerland^1

Université de Haute Alsace, Laboratoire de Physique et Mécanique Textiles, Ecole Nationale Supérieure d'Ingénieurs Sud Alsace, Mulhouse, France^2

Haute Ecole d'Art et de Design Genève, University of Geneva, Geneva, Switzerland^3

Artanim Foundation, Geneva, Switzerland^4

关键词: 3D simulations;    Air gap thickness;    Body movements;    Heat and mass transfer;    Heat and mass transfer in clothings;    Quantitative validation;    Simulation software;    Virtual garments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/16/162007/pdf
DOI  :  10.1088/1757-899X/254/16/162007

来源: IOP

【 摘 要 】

The heat and mass transfer through the garment to maintain the heat balance between the human body and the environment is dependent on the air gap thickness underneath the garment, which in turn is affected to a great extent by the body movement. Therefore, in this study, 3D garment simulation software was quantitatively validated by comparing the air gap thickness results obtained for stationary postures simulated by 3D simulation software and measured with 3D scanning method. The aim was to assess the capability of 3D garment simulation software to accurately determine air gap thickness distribution. Moreover, the effect of differences between air gap thickness of real and virtual garments on the thermal resistance of the garments was evaluated for individual body regions. It was found that the agreement between the two methods was within the range of 10 mm for air gap thickness. This difference resulted in small differences in thermal resistance for tight (up to 0.025m2K/W) and loose fit (up to 0.013m2K/W).