摘要
针对传统方法在方案决策时需给出各评价指标权重的局限性,将物理规划方法和信息公理引入到产品性能评价决策中,提出了基于物理规划与信息公理的评价方法。该方法在决策时无需给出各评价指标的权重,只需决策者设定各指标满意区间的边界值,形成偏好函数,确定各指标的设计范围和系统范围,并通过计算产品各性能指标的信息量进行优劣排序,优选最佳产品。阐述了其具体的评价决策过程,最后用实例验证了该方法的有效性。
Due to the limitation that the weighting factors of evaluation index are required in traditional decisionmaking methods, physical programming and information axiom are utilized in performance evaluation for mechanical products, and an evaluation method is proposed based on physical programming and information axiom. With such a method, it is not necessary for a decision-maker to provide the detailed weighting factors of evaluation index, but only to specify the boundary values of each preference range. Then, preference functions are developed and the design ranges and system ranges are identified. The total information content of every product is calculated, and arrayed in order, so the optimal design product can be selected. A procedure of evaluation and decision-making is provided in detail, and a case study is given to demonstrate the effectiveness of the proposed method.
出处
《机械科学与技术》
CSCD
北大核心
2009年第3期396-399,403,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
江西省自然科学基金项目(2007GZC0874)
江西省教育厅科技研究项目(GJJ08253)
载运工具与装备省部共建教育部重点实验室开放基金项目资助
关键词
物理规划
信息公理
偏好函数
信息量
physical programming
information axiom
preference function
information content
