共查询到18条相似文献,搜索用时 765 毫秒
1.
基于多色集合理论的概念设计建模和推理技术研究 总被引:5,自引:0,他引:5
对产品信息建模和推理技术的形式化方法进行了研究。将机械产品中存在的约束关系分为3类4种,在功能方法树中以边的形式进行了表示,建立了包含约束信息的功能方法树模型,在此基础上,利用多色集合理论的元素、统一颜色、个人颜色等概念以及多色图,建立了产品概念设计形式化结构模型;从功能分解和约束条件两方面进行了数学形式的描述、推理,给出了实现产品概念设计形式化推理的计算机算法流程;以隔振系统的概念设计为例,应用和验证了以上理论和方法。研究表明,基于多色集合理论建立的机械产品概念设计模型易于形式化描述和推理,方便计算机编程。 相似文献
2.
3.
基于数据挖掘的产品概念设计建模研究 总被引:9,自引:1,他引:9
在产品概念设计过程中,引入数据挖掘技术和方法,提出了基于数据挖掘的全息虚拟产品概念设计模型,开发了数据挖掘工具,建立了面向产品概念设计方案生成的数据仓库;研究建立决策树算法的数据挖掘模型,以支持度为目标,实现从所建立的机械产品库、设计规则库、领域知识库中挖掘相关数据、信息和知识,从而极大地支持机械产品方案创新设计过程。以机床传动机构设计为例,说明了采用决策树方法的数据挖掘模型来实现机械产品概念设计的功能结构映射过程。 相似文献
4.
5.
6.
介绍了如何运用机电一体化系统概念设计的基本理论 ,对自动嵌绝缘纸机进行机电一体化创新设计。以及新机器的创新点与优点。 相似文献
7.
8.
9.
10.
在机电一体化系统概念设计过程中,功能结构的生成和功能求解是交替进行、互为因果的关系。基于这一实际,提出了一种基于功能→效应→作用原理→结构方案映射的机电一体化系统概念设计反馈循环求解模型。分析了单一功能与机电系统功能的各自求解进程,研究了接口匹配及功能求解等反馈循环求解的关键实现技术,开发了一个机电系统概念设计自动化原型系统,并以电脑绣花机的概念设计为例进行了验证。 相似文献
11.
12.
基于Matlab-Sim Mechanics的机电产品组成建模与仿真技术研究 总被引:7,自引:1,他引:6
分析了目前几种产品建模方法的特点。比较了机电一体化产品组成的现有划分方法。针对以广义执行机构为主功能的机电一体化产品组成划分,提出了结合Matlab软件的SimMechanics工具箱建立机电一体化产品的广义执行机构模型、传感器模型和控制策略模型的机电产品组成对象建模的方法,为机电一体化产品方案生成后的进一步仿真分析奠定了基础。文章以特定的机电一体化产品——家用多功能缝纫机的横针机构子系统为例,阐明了这种建模方法和仿真技术的具体应用,取得了较好的效果。 相似文献
13.
14.
15.
Li Rui-qin Zou Hui-jun 《The International Journal of Advanced Manufacturing Technology》2005,25(7-8):619-627
Regarding the typical mechatronic system that realizes controlled motion behaviour as the research object, the mechatronic system is composed of three subsystems, they are generalized executive mechanism subsystem, sensing and testing subsystem, and information processing and control subsystem. Based on the three subsystems, a new kind of symbolic representation method to represent a design scheme of mechatronic system is presented. This symbolic representation method includes graphical symbols, literal symbols and port information flows on the abstract layer of basic mechatronic function units in common use. Two applied instances are given. The method standardizes scheme representation of mechatronic system. The purpose is that the computer can identify and operate the standardized scheme representation. Furthermore, the method can be implemented in connection with related knowledge base to produce creative scheme. The symbolic representation method provides theoretical basis for computer aided conceptual design of mechatronic system. 相似文献
16.
17.
Since 1982, the symposiums on mechanism in China has been held fifteen times. In the past 24 years, Chinese mechanism has
experienced a phenomenal development. Generally, fundamental research on traditional mechanisms is enhanced; mechanism and
creative design of products are closely combined; modern mechanism with advanced and new technology is opened up; and mechanism
is promoted to modernization. These are manifested in the following aspects: theory research on analysis and synthesis of
traditional mechanism is deeply developed; computer-aided design on mechanisms is realized vigorously; conceptual design of
mechanism system and mechanical products is energetically pushed; research on robot mechanisms and its industrial application
is deeply developed; research on analysis and synthesis of controllable mechanisms and compliant mechanisms are energetically
carried out; research on the dynamics of mechanisms and machines is vigorously developed; and reformation of teaching contents
and system of mechanism is energetically carried out. Through the above-mentioned aspects of theory research and practical
application, the theoretical and academic levels of Chinese mechanism can be considered at the advanced international level.
However, there are not many original and breakthrough research achievements of fundamental research in China. In the meantime,
there is a larger gap in the aspect of practical application of mechanism in the country compared with advanced countries
in the world. 相似文献
18.
现代机构学的研究内容和应用展望 总被引:8,自引:2,他引:6
本文提出,现代机械学的机械类型已由纯刚性年机构扩展为多种工作原理的广义机构,在机器构成上计算机信息处理与控制已成为机器的主要特征。机构和机器设计更加更有系统性和智能化,注重机构系统的动态设计。现代机构学由于多学科的交叉已形成各种各样崭新的机构学分支。现代机构学的出现将会有力地促进机电产品的创新设计和开发,并力科学技术的发展发挥独特的作用。 相似文献