羽绒服装系统的面积因子预测及适用性分析

为合理评价羽绒服装系统的热湿舒适性，准确获取服装的面积因子，利用手持式三维扫描仪对12套羽绒服装系统进行扫描并计算。通过相关性分析确定了服装设计参数(总充绒量、长度)、服装热物理性能(固有热阻和总热阻)与面积因子的相关关系，并基于各影响因素建立了面积因子预测模型。以固有热阻预测面积因子方法作为切入点，探讨了标准数据库中面向轻薄服装的面积因子计算方法在羽绒服装系统中的适用性，并进一步考察了总热阻预测面积因子方法的有效性。结果表明：羽绒服总充绒量与面积因子具有显著相关关系，且长度的作用依赖于单位面积充绒量；相较于固有热阻预测面积因子的方法，总热阻预测法具有更高的预测准确性。

Applicability analysis and calculation of clothing area factor in down jacket clothing ensembles

In order to effectively evaluate the thermal and moist comfort of down clothing ensembles and accurately obtain clothing area factor, naked and clothed human bodies with 12 sets of down clothing systems were scanned by 3-D body scanner. Using Pearson analysis method, the correlational relationship between area factor and clothing design parameters (total filling of down, clothing length) and clothing thermal physical properties (intrinsic and total thermal insulation) were analyzed and the regression equations were established based on each influencing factor. The applicability of the area factor and the calculation method were discussed for down clothing systems using the predicted method for inherent thermal insulation and total thermal insulation. The results indicates that there is significant correlation between the total filling of down and the area factor, and that the effectiveness of length depends on down filling amount. Compared with the method of predicting the area factor of the inherent thermal insulation, the predicted values with total thermal insulation are more accurate.