大型复杂系统可靠性综合的信息熵方法

Information entropy method of reliability synthesis for large complex systems

阐述了大型复杂系统可靠性多级综合的目的意义和工程应用价值,分析了系统可靠性综合的研究状况和发展趋势,指出了基于概率统计理论的传统可靠性综合方法存在的问题和不足,提出了基于信息理论的复杂系统可靠性多级综合的方法体系,给出了信息熵法可靠性综合的主要研究内容,为解决大型复杂系统可靠性综合问题提出了新的研究方法。

The significance and applicable value of reliability multi-level synthesis for large complex system are described, the studying status and developing trend of system reliability synthesis are analyzed, then the problems and shortcomings of traditional reliability synthesis method based on probability and statistics theory were indicated, the reliability multi-level synthesis for complex system based on information theory was put forward, and the basic thought of entropy method of reliability assessment is given. By the use of general expression of the information entropy for discrete variable and addible characteristics of information, the reliability assessment method was studied for the system composing of different and same distribution type components according to equivalence principle of information quantity. The basic conversion models of the entropy method for component data and the reliability as-sessment formulae of complex systems were presented.