汽轮发电机投标方案设计与再设计的研究
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摘要
大型汽轮发电机多为单件、小批、大成套,这就决定了生产这类产品的企业的投标方案设计任务相当繁重。充分利用企业长期积累的经验知识及历史设计数据,采用可视化、自动化、智能化的设计手段进行产品设计,是大型汽轮发电机制造企业提出的迫切要求。本文在研究产品方案设计理论和技术的基础上,利用数据库技术及Java语言开发工具开发了大型汽轮发电机投标方案设计系统,并用实际案例对系统进行了测试。
论文首先对大型汽轮发电机电磁方案设计技术进行了研究。电磁方案设计多为改型设计,检索与当前设计最为相似的方案至关重要。通过分析设计问题特性,建立了相似评价的指标体系,给出了描述两方案相似度的相关定义和计算方法,并对置信区间的确定进行了讨论。在基于功能驱动和基于差异驱动的赋权法相结合的基础上,提出了基于关联度的相似检索算法,并应用实例对算法进行了验证,表明了算法的有效性。
结构方案设计是汽轮发电机设计的重要内容,主要包括定子结构设计、转子结构设计两大部分,其中每一部分又包含若干个部套和主件。在实例分析的基础上,论文给出了结构设计的过程、基本功能模块及模块之间的信息交互方式,并将基于实例的推理技术引入到结构设计中,对实例修改技术进行了研究。针对传统方法知识获取困难、存在局部收敛及效率低等问题,将粒子群算法用于实例修改中,并对其中适应度的确定等问题做了探讨。汽轮发电机的方案设计往往不是一次结束,再设计是其中的重要课题。
本文将顾客满意度的概念引入到再设计中,并以顾客满意度作为方案评判的标准。论文介绍了顾客满意度的相关概念及理论模型,提出了描述顾客满意度的指标,并对顾客满意度测量时间、测量地点、被测对象、测量规范及测评的可信度等内容进行了讨论。在方案评判标准的基础上,进一步提出了基于相关性的方案修改方法,该方法利用设计变量及目标参数之间广泛存在的相关性,采用相关性制导回溯策略引导设计方案的修改。
论文最后对大型汽轮发电机投标方案设计系统的体系结构、功能模块、数据库和应用案例进行了介绍。
Large-scale turbo generator has the property of single unit, small batch and large complete set; this makes the enterprise’s bid scheme design task to be quite heavy. Making full use of the enterprise’s long-term cumulated experience knowledge and historical design data, using visualize automate and intellectualized way to design the product is the urgent requirement proposed by the large-scale turbo generator enterprises. Basing on the research of scheme design theory and technology, this paper developed a bid scheme design system of large-scale turbo generator using Database technology and the Java programming language. And actual cases were used to test the system.
The electromagnetism design was discussed first. Electromagnetism design is mostly remodeling design. Searching for the most similar case to the current design is very important. Through the analysis of design characters, a similarity evaluation system was constructed. Then related definitions and methods using to describe the case’s similarity degree were given, and carried on the discussion of confidence intervals. Combining function droved method with difference droved method, a similarity searching algorithm was given and has been proved effective through actual cases testing.
Structure design is the important content of the turbo generator design, which includes two major parts of stator design and rotor design, and each part contains several components. Basing on the analysis of actual cases, process basic function module and the module information interactive mode were given. Case-based Reasoning was introduced into structure design and the case adaptation technology was studied. Aiming at the problems of knowledge retrieve difficulty, local convergence and low convergence efficiency, the Particle Swarm Optimization algorithm was introduced into case adaptation, and fitness function constitution was discussed also.
The turbo generator scheme design is often not a conclusion, redesign is an important topic. This paper introduced customer satisfaction into the resign problem, and using customer satisfaction as the criterion of case judgment. This paper introduced related conceptions and theory model of customer satisfaction,
论文首先对大型汽轮发电机电磁方案设计技术进行了研究。电磁方案设计多为改型设计,检索与当前设计最为相似的方案至关重要。通过分析设计问题特性,建立了相似评价的指标体系,给出了描述两方案相似度的相关定义和计算方法,并对置信区间的确定进行了讨论。在基于功能驱动和基于差异驱动的赋权法相结合的基础上,提出了基于关联度的相似检索算法,并应用实例对算法进行了验证,表明了算法的有效性。
结构方案设计是汽轮发电机设计的重要内容,主要包括定子结构设计、转子结构设计两大部分,其中每一部分又包含若干个部套和主件。在实例分析的基础上,论文给出了结构设计的过程、基本功能模块及模块之间的信息交互方式,并将基于实例的推理技术引入到结构设计中,对实例修改技术进行了研究。针对传统方法知识获取困难、存在局部收敛及效率低等问题,将粒子群算法用于实例修改中,并对其中适应度的确定等问题做了探讨。汽轮发电机的方案设计往往不是一次结束,再设计是其中的重要课题。
本文将顾客满意度的概念引入到再设计中,并以顾客满意度作为方案评判的标准。论文介绍了顾客满意度的相关概念及理论模型,提出了描述顾客满意度的指标,并对顾客满意度测量时间、测量地点、被测对象、测量规范及测评的可信度等内容进行了讨论。在方案评判标准的基础上,进一步提出了基于相关性的方案修改方法,该方法利用设计变量及目标参数之间广泛存在的相关性,采用相关性制导回溯策略引导设计方案的修改。
论文最后对大型汽轮发电机投标方案设计系统的体系结构、功能模块、数据库和应用案例进行了介绍。
Large-scale turbo generator has the property of single unit, small batch and large complete set; this makes the enterprise’s bid scheme design task to be quite heavy. Making full use of the enterprise’s long-term cumulated experience knowledge and historical design data, using visualize automate and intellectualized way to design the product is the urgent requirement proposed by the large-scale turbo generator enterprises. Basing on the research of scheme design theory and technology, this paper developed a bid scheme design system of large-scale turbo generator using Database technology and the Java programming language. And actual cases were used to test the system.
The electromagnetism design was discussed first. Electromagnetism design is mostly remodeling design. Searching for the most similar case to the current design is very important. Through the analysis of design characters, a similarity evaluation system was constructed. Then related definitions and methods using to describe the case’s similarity degree were given, and carried on the discussion of confidence intervals. Combining function droved method with difference droved method, a similarity searching algorithm was given and has been proved effective through actual cases testing.
Structure design is the important content of the turbo generator design, which includes two major parts of stator design and rotor design, and each part contains several components. Basing on the analysis of actual cases, process basic function module and the module information interactive mode were given. Case-based Reasoning was introduced into structure design and the case adaptation technology was studied. Aiming at the problems of knowledge retrieve difficulty, local convergence and low convergence efficiency, the Particle Swarm Optimization algorithm was introduced into case adaptation, and fitness function constitution was discussed also.
The turbo generator scheme design is often not a conclusion, redesign is an important topic. This paper introduced customer satisfaction into the resign problem, and using customer satisfaction as the criterion of case judgment. This paper introduced related conceptions and theory model of customer satisfaction,
引文
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2 中型 2 极汽轮发电机的模块化设计. 1987 年摩纳哥汽轮发电机国际年会法国阿尔斯通论文. 国外大电机. 1989, (2)
3 汪耕. 汽轮发电机设计制造简史. 上海电机厂科技情报. 2001, (1): 1~9
4 唐林, 邹慧君. 机械产品方案的现代化设计方法及发展趋势. 机械科学与技术. 2000, 19(2): 192~196
5 梁惠萍, 宁绍强. 系统设计方法在产品开发中的应用. 现代制造工程. 2005, (5): 141~143
6 黄邦彦. 现代设计方法基础. 北京: 中国人民大学出版社, 2001: 25~42
7 Y. Ito, Yoshida. Design Conception of Hierarchical Modular Constructure Manufacturing Different Kinds of Machine Tools by Using Common Modules. Proc. 19th Int MTDR Conf., 1979: 147
8 童时中. 模块化原理设计方法及应用[M]. 北京:中国标准出版社, 2000: 23~25
9 张宝辉等. 产品模块化设计中的功能模块化分方法研究. 组合机床与自动化加工技术. 2004, (9): 55~59
10 张昆. 基于绿色设计的产品模块化研究. 机械设计. 2002, (9): 5~6
11 张君媛, 黄金陵, 魏天伶. 基于知识的设计系统中数据库系统的开发. 吉林大学学报. 2002, 32(3): 61~64
12 蒋祖华, 严隽琪, 蔡洪. 代数式公式类知识管理系统的研究和实践. 计算机集成制造系统 CIMS. 2004, 10(7): 744~749
13 P. Suh Nam. Axiomatic Design Theory for Systems. Research in Engineering Design. 1998, (10): 189~209
14 D. Xue, S. Yadav, D. Norrie. Knowledge Base and Database Representation for Intelligent Concurrent Design [J]. Computer Aided Design. 1999, 31(2): 131~145
15 Sehyun M. yung, Soonhung Han. Knowledge Based Parametric Design of Mechanical Products Based on Configuration Design Method. Expert System with Applications. 2001, 21(8): 99~107
16 胡明晖. 基于知识源的专家系统知识获取技术. 现代生产与管理技术. 2005, 22(2): 25~28
17 肖人彬, 周济, 查建中. 智能设计: 概念、发展与实践. 中国机械工程. 1997, 8(2): 74~76
18 K. Parsaye, M. Chignell. Expert System for Experts. John Wiley, 1988: 7~15
19 张晶莹. 智能设计综述. 装备制造技术. 2003, (3): 52~55
20 李建平, 徐林林, 腾启. 智能设计技术. 起重运输机械. 2003, (5): 1~3
21 吕大光, 王光远. 信息时代的 CAD-计算机集成智能设计系统. 工程设计CAD 与智能建筑. 2000, (1): 38~42
22 史琦, 杜江, 李原, 杨海成. 基于实例推理的产品概念设计模型研究. 西北工业大学学报. 2002, 20(2): 203~207
23 D. Leake. Case~Based Reasoning: Experiences, Lessons, and Future Directions, Menlo Park, California: AAAI Press/The MIT Press, 1996
24 陈靖芯, 李红, 徐晶, 周骥平, 蔡兰. 基于知识的智能化设计方法及其实现. 农业机械学报. 2003, 34(4): 109~112
25 P. Subasic, K. Hirota. Similarity Rules and Gradual Rules for Analogical and Interpolative Reasoning with Imprecise Data [J]. Fuzzy Sets and Systems. 1998, 96(1): 53~75
26 Marry L. Maher, et al. Case-based Reasoning in Design [J]. IEEE Expert. 1997, 12(2): 34~41
27 Xenophon Koufteros, Mark Vonderembse, William Doll. Concurrent Engineering and Its Consequences [J]. Journal of Operations Management. 2001, 19(1): 97~115
28 谢季坚等. 模糊数学方法应用[M], 第 2 版. 华中科技大学出版社, 2003
29 李彦鹏, 黎湘, 王宏强, 庄钊文. 模糊综合评判与数理统计知识结合的目标识别效果评估. 中国工程科学. 2005, 7(3): 64~68
30 王威, 崔明明. 复杂系统评估的综合层次分析法. 海军工程大学学报. 2006, 18(2): 42~46
31 秦寿康. 综合评价原理与应用[M]. 北京:电子工业出版社, 2003:100~154
32 要瑞璞, 沈惠璋, 刘铎. 多层次系统的综合评价方法研究. 系统工程与电子技术. 2005, 27(4): 656~658
33 郭亚军. 综合评价理论与方法[M]. 北京:科学出版社, 2002: 40~46
34 郭文明, 相景丽, 肖楷生. 群组 AHP 权重系数的确定[J]. 华北工学院学报. 2000, 21(2): 110~113
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