【作者】 赵刚；

【Author】 Zhao Gang (College of Mechanical Automation,Wuhan University of Science and Technology,Wuhan 430081,China)

【机构】 武汉科技大学机械自动化学院；

【摘要】 可靠性优化设计的数学模型一般都是建立在概率论基础上的,概率可靠性模型本身具有一定的模糊性质,应用模糊隶属度的概念来构建新的基于模糊数学的可靠性模型,可以更好地描述复杂机械系统及其零部件的可靠度信息。本文将模糊可靠性模型应用到机械系统的优化设计中,可以在设计过程中充分考虑工程的安全因素和过渡因素,浮动地选取不同阈值,从而得到一组关联的分析结果和优化方案,为工程设计的最终确定提供更广泛更可靠的选择。应用数值计算工具 SAS 的求解,使整个设计过程更为稳定可靠,更具完备的科学计算、数据处理、存取、管理和分析能力。基于模糊数学的可靠性优化设计理论是将模糊概念应用到可靠性分析中去的一种崭新的优化设计方法。更多还原

【Abstract】 The mathematic model of reliability optimization based on probability theory constructs the model of probability reliability with a certain fuzzy attribute.The reliability information of the complex machinery and com- ponents is properly indicated by the reliability model constructed by the concept of fuzzy membership based on fuzzy mathematics.In this paper,Optimal design of fuzzy reliability is an irmovative methodology,which applies fuzzy conception to reliability design.Safety factors and transition factors in project are taken into account sufficiently in the designing process of fuzzy reliability optimization.A serial of analysis results and optimal results are obtained by picking up various value of threshold.All these optimal results offer more choices for the design of project,more widely,more reliably.With the powerful capability of scientific computing,data process,memory and manage- ment,analysis and monitor,SAS-based solution makes the whole designing process more steady and reliable.The- ory of reliability Optimization based on fuzzy mathematics is an innovative methodology of optimization design,in which the fuzzy concept and reliability analysis is applied.更多还原