公理设计与FAST结合的功能求解方法研究  

Research on Functional Solution Method Combining Axiomatic Design with FAST

作　　者：马拓 江屏[1,2] 李鑫荣 马守洋 刘发达 MA Tuo;JIANG Ping;LI Xinrong;MA Shouyang;LIU Fada(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401;National Technology Innovation Method and Implementation Tool Engineering Technology Research Center,Hebei University of Technology,Tianjin 300401)

机构地区：[1]河北工业大学机械工程学院,天津300401 [2]河北工业大学国家技术创新方法与实施工具工程技术研究中心,天津300401

出　　处：《机械工程学报》2024年第21期300-311,共12页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(52105250)。

摘　　要：功能求解是产品概念设计的核心部分。在产品设计过程中,由于产品技术要求和用户需求的复杂性,功能求解容易出现偏差和不确定性,导致整个设计质量降低。基于上述存在的问题,利用公理设计功能-结构相邻域间“之字形”映射变换进行了功能分解以及原理解的确定,以功能独立性公理为依据确定功能求解的正确性,引入功能分析系统技术(Function analysis systemtechnique,FAST)辅助判断功能关联性,建立公理设计矩阵,确定设计类型,最后利用FAST模型表征公理设计功能求解的结果,确定设计方案。以辊压机床作为案例进行求解,利用公理设计和FAST逐层分析求解,得到一个合理的设计结果,验证了上述模型的有效性。公理设计和FAST集成的求解模型结合公理设计求解和FAST分析两者的优点,提高了设计质量和准确性。Function solving is the core part of product conceptual design.In the process of product design,due to the complexity of product technical requirements and user requirements,the functional solution is prone to deviation and uncertainty,which leads to the degradation of the whole design quality.Based on the above problems,the"Z"mapping transformation between functional and structure adjacent domains is used to decompose functions and determine the original understanding,and the correctness of Function solution is determined based on the functional independence axiom.Function analysis system technique is used to determine the functional correlation,establish the axiomatic design matrix,and determine the design type.Finally,the FAST model is used to characterize the results of the axiomatic design function solution and determine the design scheme.The roller machine tool is taken as an example to solve the problem,and a reasonable design result is obtained by axiomatic design and FAST layer by layer analysis,which verifies the validity of the model.The integrated solution model of axiomatic design and FAST combines the advantages of axiomatic design solution and FAST analysis to improve the design quality and accuracy.

关 键 词：功能求解 公理设计 映射变化 功能分析系统技术 

分 类 号：TH122[机械工程—机械设计及理论]