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J4  2012, Vol. 46 Issue (3): 515-523    DOI: 10.3785/j.issn.1008-973X.2012.03.021
机械工程     
基于K-WFA的机械产品运动方案设计求解
冯毅雄,宋轩,谭建荣,丁力平
浙江大学 流体动力与机电系统国家重点实验室,浙江 杭州 310027
K-WFA based kinematic scheme design solving of mechanical product
FENG Yi-xiong, SONG Xuan, TAN Jian-rong, DING Li-ping
State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
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摘要:

为获得更加多样的运动方案,防止设计的组合爆炸,提出一种基于半环赋权自动机(KWFA)的机械产品运动方案设计求解方法.利用功能语义单元模型表达机械产品运动方案设计的设计信息,以对设计者的设计思维进行合理捕捉和描述.建立机械产品运动方案设计的认知模型,使用基于半环的赋权自动机对其进行编译,由客户需求决定自动机的权重集,并通过权重集进行输入机构的截取与方案的优选.分别定义了功能语义单元求解的并联元自动机和反馈元自动机模型,借助赋权自动机的析取、逆转等运算,实现功能语义单元的串联求解、并联求解以及反馈求解.通过设计实例,详细地阐述了基于KWFA的运动方案设计求解过程,证明了该方法的可行性.

Abstract:

A semiring weighted automata (KWFA) based kinematic scheme design solving method was proposed to acquire more varieties of kinematic schemes and avoid their combination explosion. The  function semantic unit model was used to express the design information in the kinematic scheme design process of mechanical product in order to capture and express the designers design thinking reasonably. The  cognitive model of kinematic scheme design was built up, and the semiring weighted automata were employed to compile this model. The weight set was determined according to customer requirements, and it was used to intercept the input mechanism set and choose the optimal solution. Parallel metaautomation and feedback metaautomation were defined respectively to solve the function semantic unit. Based on these two models as well as automation operations such as disjunction and reverse, the cascade solving, parallel solving and feedback solving of the function semantic unit were achieved. Finally, a design example was taken to elaborate the KWFA based kinematic scheme design solving process and demonstrate its feasibility and validity.

出版日期: 2012-03-01
:  TP 391  
基金资助:

国家自然科学基金资助项目(51175456,50835008);国家“973”重点基础研究发展计划资助项目 (2011CB706500);宁波市重大科技攻关资助项目(2009B11002).

作者简介: 冯毅雄(1975-),男,副教授,从事产品设计方法、先进制造技术等研究.E-mail: fyxtv@zju.edu.cn
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引用本文:

冯毅雄,宋轩,谭建荣,丁力平. 基于K-WFA的机械产品运动方案设计求解[J]. J4, 2012, 46(3): 515-523.

FENG Yi-xiong, SONG Xuan, TAN Jian-rong, DING Li-ping. K-WFA based kinematic scheme design solving of mechanical product. J4, 2012, 46(3): 515-523.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.03.021        http://www.zjujournals.com/eng/CN/Y2012/V46/I3/515

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