基于三维头型及穴位分布的辅助设计平台的研究

为设计适合中国人头型的头戴产品，提高产品佩戴时的适配性和舒适性，开展了 辅助头戴产品设计的图形化平台的研究。首先基于国家标准重构了5 种标准头型的三维头部数 字化模型，并根据不同头型的第5，50 和95 百分位的头型缩放因子，构造了共15 个三维数字 化头型；然后根据中医理论中的穴位分布及定位方法，在所构造的头型上建立了7 条经络和78 个穴位的三维分布模型。采用三维网络图形开发包Three.js 开发了头戴产品辅助设计平台，实 现了多百分位头型的连续变形、头部穴位动态定位及基准平面剖切功能，可对头戴产品的穴位 点匹配、贴合区域间隙和干涉等进行适配性分析。以某头戴按摩仪为例开展试戴及适配性分析， 可有效发现该产品结构上存在的问题。该研究可为相关头戴产品的适配性分析提供参考。

Research on aided design platform based on 3D headform and acupoint distribution

In order to design headwear products suitable for the headform of Chinese people and improve the suitability and comfort when the product is used, a research on the graphic platform for assisting the design of headwear products was carried out. Firstly, the three-dimensional digital models of five types of standard heads were reconstructed based on the National Standards. A total of 15 three-dimensional digital head models were constructed according to headform scaling factors at the 5th, 50th, and 95th percentile of different headforms. According to the acupoint distribution and positioning method of traditional Chinese medicine, a three-dimensional distribution model of 7 meridians and 78 acupoints was built on the constructed headform. The WebGL development kit Three.js was used to develop an aided design platform of headwear products, realizing such functions of continuous deformation of the multi-percentile headforms, dynamic positioning of the head acupoints and datum-planes cutting. The platform can provide a suitability analysis of acupoint matching, gap of the fit area and interference. A headwear massager was tried on for adaptability analysis, and the problems of the product structure had been effectively found. The method proposed in this research may provide implications for the compatibility analysis of related headwear products.