结合头部模型库的骑行防护头盔参数化定制设计方法  

Customized design of protective helmet bansed on parametric modeling

作　　者：华彬彬 朱兆华 姚君 李泽尧 HUA Bin-bin;ZHU Zhao-hua;YAO Jun;LI Ze-yao(School of Architecture and Design,China University of Mining and Technology,Xuzhou 221116)

机构地区：[1]中国矿业大学建筑与设计学院,江苏徐州221116

出　　处：《机械设计》2022年第12期147-153,共7页Journal of Machine Design

基　　金：徐州市科技计划项目(KC21069);国家自然科学基金资助项目(52005498);中央高校基本科研业务费专项资金资助项目(2020SK15,2020ZDPY0308)。

摘　　要：构建以头部形状聚类模型库为数据基础的骑行防护头盔参数化定制设计方法,在满足用户佩戴头盔舒适性的基础上,提升该产品的定制设计效率。通过三维扫描仪采集获取346位样本头部三维点云数据,在确保重建误差的基础上将其均重建成由相同性质和数量型值点构成的NURBS曲面。以各样本头部曲面型值点为数据基础,采用层级聚类算法将头部形态聚类为4组,以构建针对头盔内衬定制设计的头部形态模型库。依据Grasshopper软件编写一套头盔各模块参数化建模程序,设计人员通过修改程序输入端的参数即可实现头盔模型的快速定制设计。建模速度测试结果表明参数化建模程序具备较高的效率。A parametric customized design method for protective cycling helmet was constrcuted based on head shape culsutering model.The customized design efficiency of this product was promoted on the basis of user wearing comfort.The 3D point cloud data of 346 heads was acquired using 3D scanner.On the basis of allowance reconstructed error,the point cloud data were all reconstructed into NURBS surfeces with the same properties and the same number of points.The head shapes of all smaples were clustered into 4 clusters according to the hierarchical clustering algorithm to construct head shape database for helmet design.Grasshopper software was used to write a set of parametric modeling program for each module of the helmet.Designers could quickly customize helmet models for different users through parameter modification of the program input.Modeling speed test showed that the parametric modeling program was efficient.

关 键 词：防护头盔 定制设计 形状聚类 参数化建模 GRASSHOPPER 

分 类 号：TB472[一般工业技术—工业设计]