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机械产品概念设计的目的是获得产品设计方案,以便为后续的详细设计奠定基础。为了获得较好的产品设计原理方案,需要对机械产品在概念设计阶段的过程模型进一步研究。在前人的研究基础之上,主要针对机械执行系统概念设计过程模型进行研究,提出基于功能-作用原理-工艺动作过程-执行动作-行为-功能载体过程模型和相互之间的映射策略,把产品概念设计的过程模型进一步细化,以更好的符合人们在产品设计过程中的逻辑思维,从而便于提高设计人员的创新能力。 相似文献
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机械产品设计一般要经过产品规划、原理方案设计、技术设计、施工设计、改进设计等几个阶段,根据这一过程,以现代设计方法为基础,以产品创新为目的,从输入产品的设计要求到最终输出产品的设计方案,分别研究了面向功能原理方案、基于人机工程学、基于智能化方法、基于反求工程的机械产品创新设计方法,旨在为深入研究实用的、符合工程设计要求的创新设计系统提供有益的参考. 相似文献
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形象化设计技术与基于功能表面的产品模型 总被引:1,自引:0,他引:1
提出形象化设计方法 ,构筑基于功能表面的产品模型 ,可实现人脑思维即时地用计算机直观表达 ,并同时实现设计过程中的动态建模 ,也可随时从计算机屏幕上点取零件或表面实体进行产品结构的修改设计。 相似文献
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通过对可拓工程方法和智能体技术的研究,提出了基于可拓智能体的概念设计自动化求解方法.建立了设计方案的可拓智能体表达方式,结合可拓方法设计了聚合、交换、置换、扩缩等可拓算子.根据关联函数和模糊评判策略建立了智能体的能量函数和设计方案评价策略. 相似文献
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机械产品概念设计——智能CAD中的关键技术 总被引:7,自引:1,他引:7
本文回顾机械产品概念设计CAD的发展历程,对各种目前的概念设计方法进行了评述,讨论了机械产品概念设计智能CAD的关键性技术,提出了可能的解决方法。 相似文献
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机械产品的人机关系因涉及的范围很广,正日益受到人们的关注,用户的使用心理是其中重要的一环,故其设计应充分考虑用户的心理特点和内心需求,使得机械产品与用户之间的关系更为和谐.分三个层次解析了设计心理学在产品设计中的地位与作用,并从设计心理学的角度提出了机械产品设计应当遵循的可视性原则、功能预设原则、安全限制原则、信息反馈原则和自然匹配原则等几个心理学原则,为解决机械产品与人之间存在的问题提供有效的途径. 相似文献
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论基于绿色制造的机械产品可拆卸性设计 总被引:1,自引:0,他引:1
分析可拆卸性设计必要的基础上,阐述了可拆卸性设计的涵义,并分析拆卸设计与传统设计相比的特点。重点探讨了可拆卸性设计的基本原则,对进一步明确设计方法和流程提供具有指导意义。 相似文献
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Huang Hong-Zhong Li Yanfeng Liu Wenhai Liu Yu Wang Zhonglai 《Journal of Mechanical Science and Technology》2011,25(9):2413-2425
Within the competitive market environment, understanding customer requirements is crucial for all corporations to obtain market
share and survive competition. Only the products exactly meeting customer requirements can win in the market place. Therefore,
customer requirements play a very important role in the evaluation and decision process of conceptual design schemes of products.
In this paper, an evaluation and decision method based on customer requirements is presented. It utilizes the importance of
customer requirements, the satisfaction degree of each evaluation metric to the specification, and an evaluation metric which
models customer requirements to evaluate the satisfaction degree of each design scheme to specific customer requirements via
the proposed BP neural networks. In the evaluation and decision process, fuzzy sets are used to describe the importance of
customer requirements, the relationship between customer requirements and evaluation metrics, the satisfaction degree of each
scheme to customer requirements, and the crisp set is used to describe the satisfaction degree of each metric to specifications.
The effectiveness of the proposed method is demonstrated by an example of front suspension fork design of mountain bikes. 相似文献
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W.Y. Zhang S.B. Tor G.A. Britton 《The International Journal of Advanced Manufacturing Technology》2005,25(3-4):221-232
This paper presents a graph and matrix representation scheme for the functional design of mechanical products, which provides a good basis to generate an explicit and comprehensive functional model used for functional reasoning. Three key features of the scheme are (1) The representation of the causal way behaviors are interconnected; (2) The representation of two types of functional relations: decomposed into and supported by; and (3) Support for diverse functional reasoning paths: three alternative B-FES/e paths are currently available. The scheme can guide functional design of mechanical products through functional reasoning steps including functional supportive synthesis, causal behavioral reasoning and functional decomposition. The developed functional model and its representation applied in a knowledge-based design environment can speed up the functional design process by automating functional reasoning steps. The proposed approach has been evaluated with a functional design example of a terminal cutoff unit in an automatic assembly system for manufacturing electronic connectors. 相似文献
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