摘要
Using the characteristic of addition of information quantity and the principle of equivalence of information quantity, this paper derives the general conversion formulae of the formation theory method conversion (synthesis) on the systems consisting of different success failure model units. According to the fundamental method of the unit reliability assessment, the general models of system reliability approximate lower limits are given. Finally, this paper analyses the application of the assessment method by examples, the assessment results are neither conservative nor radical and very satisfactory. The assessment method can be popularized to the systems which have fixed reliability structural models.
系统可靠性多级综合评定问题是可靠性工程领域的重大课题,单元-系统相邻两级的可靠性评定又是复杂系统可靠性多级综合评定的关键。文中引入信息理论,利用信息量的可加性特性及信息量等效的原则进行试验信息的折合,导出了不同成败型单元组成系统时单元试验数据信息论方法等效折合的通用公式;根据单元可靠性评定的基本原理,提出了系统可靠性信息论方法近似下限的基本模型;最后,通过实例说明了系统可靠性信息论方法评定的具体应用。
