中国机械工程

• 机械基础工程 • 上一篇    下一篇

基于质量功能展开、发明问题解决理论和仿生学的产品创新设计

陈亮;窦昊;魏煌;刘晓敏;陈博文   

  1. 福州大学机械工程及自动化学院,福州,350116
  • 出版日期:2020-06-10 发布日期:2020-07-03
  • 基金资助:
    国家自然科学基金资助项目(50875049);
    福建省自然科学基金资助项目(2014J01184)

Product Innovation Design Based on QFD, TRIZ and Bionics

CHEN Liang;DOU Hao;WEI Huang;LIU Xiaomin;CHEN Bowen   

  1. School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou,350116
  • Online:2020-06-10 Published:2020-07-03

摘要: 为了提高产品创新设计效率,提出一种基于质量功能展开(QFD)、发明问题解决理论(TRIZ)和仿生学的产品创新设计过程模型。首先,根据客户需求利用QFD理论构建产品质量屋,结合TRIZ的矛盾冲突理论将负相关技术特性映射到对应的发明原理,综合考虑发明原理三大准则筛选出合适的发明原理;然后,搜索基于发明原理的生物实例库获得多个生物实例,分别计算其与设计目标之间的功能流相似度并将相似度值最高的作为仿生原型;最后基于建立好的生物系统数据库、产品系统数据库和协同中间件数据库,利用协同中间件进行跨领域多层次协同映射,得到产品仿生设计方案。利用上述过程模型对风扇叶片进行创新设计,并结合FLUENT软件进行数值模拟,结果表明风扇叶片在提高风量和降低噪声性能上得到了一定的改善,验证了所建立设计模型的可行性与有效性。

关键词: 仿生设计, 质量功能展开, 发明问题解决理论, 多层次协同映射, 风扇叶片

Abstract: In order to improve the efficiency of product innovation design, a product innovation design process model was proposed based on QFD、TRIZ and bionics. First of all, according to the customer demands, the product quality house was constructed by using QFD theory, and the negative correlation technical characteristics were mapped to the corresponding invention principles by combining the contradiction and conflict theory of TRIZ. Considering the three major criteria of invention principles, the suitable invention principles were screened out. Next, based on the invention principles by searching the biological case base, several biological examples were obtained. Then, the functional flow similarity among the biological examples and the design targets was calculated, and the bionic prototype with the highest flow similarity value was used as the bionic prototype. Finally, based on the established biological system database, product system database and collaborative middleware database, the product bionic design scheme was obtained by using collaborative middleware to carry out cross-domain and multi-level collaborative mapping. The above-mentioned process model was used to innovatively improve the fan blade, and the numerical simulation was carried out with FLUENT software. The results show that the air flow rate is improved and the noise of fan blade is reduced at a certain extent. The feasibility and effectiveness of the proposed design model are verified.

Key words: biomimetic design, quality function deployment(QFD), theory of inventive problem solving(TRIZ), multi-level collaborative mapping, fan blade

中图分类号: