频谱基因控制的概念产品族设计  

Conceptual product family design based on spectrum gene control

作　　者：乐万德 任静 刘舟洲 杨楠 初建杰[2] YUE Wande;REN Jing;LIU Zhouzhou;YANG Nan;CHU Jianjie(School of Computer Science, Xi'an Aeronautical University, Xi'an 710077, China;Key Laboratory of Industrial Design and Ergonomics, Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an 710072, China)

机构地区：[1]西安航空学院计算机学院,陕西西安710077 [2]西北工业大学工业设计与人机工效工信部重点实验室,陕西西安710072

出　　处：《计算机集成制造系统》2021年第11期3273-3281,共9页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(61871313);陕西省重点研发计划资助项目(2020GY-084);陕西省教育厅科研计划资助项目(20JG014)。

摘　　要：为提高产品族造型设计自动化,提出一种基于产品轮廓频谱分析及频谱变化的概念产品族设计方法。该方法基于链码对产品轮廓进行数字化表达,形成首尾相连的点序列,采用傅里叶变换提取出轮廓频谱序列。通过分析矩形轮廓傅里叶频谱特点及各次谐波对轮廓外形的影响,提出形状频谱基因的概念。以形状频谱为基础构建概念产品族轮廓的形状频谱基因序列,通过改变形状频谱基因成分实现概念产品族变型设计,并对产品变型遗传率定义了量化指标。以汽车侧面产品族的形状设计为例,验证了所提方法及遗传率评价指标的可行性。To improve the automation of product family modeling design,a conceptual product family design method based on product contour spectrum analysis and spectrum change was proposed.The product contour was digitally expressed based on chain code to form the end-to-end point sequence,and the contour spectrum sequence was extracted by Fourier transform.The concept of shape spectrum gene was proposed by analyzing the characteristics of Fourier spectrum of rectangular contour and the influence of each harmonic on the contour shape.Based on the shape spectrum,the shape spectrum gene sequence of conceptual product family was constructed,and the variant design of conceptual product family was realized by changing the gene composition of shape spectrum,and the quantitative index of heritability of product variant was defined.Taking the shape design of automobile side product family as an example,the feasibility of the method and heritability evaluation index was verified.

关 键 词：概念产品族 产品轮廓 频谱基因 产品变型遗传率 产品设计 

分 类 号：TB472[一般工业技术—工业设计]