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确定部件可靠性的方法已经问世近40年了.然而,这些方法由于缺乏一致的定义和分类,迄今尚未用到燃气轮机的系统设计中去.本文阐述了控制系统可靠性计算的惯常步骤,它也适用于其它机械设备可靠性的计算.这些步骤均由计算机处理的模型来完成.运用这个模型算出的一系列结果,就可对初步设计的系统的操作方法和配置是否合理进行讨论,进而达到改进燃气轮机可靠性的目的.例如,主要部件的冗余度;部件的质量;环境因素;传感装置与执行机构;电路与逻辑设计等.本文对这些方法进行了比较,并从可靠性的角度提出了在系统成本与系统复杂性之间的最佳选择.
Approaches to determining the reliability of components have been around for nearly 40 years, however, these methods have so far not been used in the design of gas turbine systems because of the lack of consistent definitions and classification.This paper describes the usual steps in the reliability calculation of control systems, Applicable to the calculation of the reliability of other mechanical equipment.These steps are completed by the computerized model.Using a series of results calculated by this model, the initial design of the system operation method and configuration is reasonable to discuss, and then to achieve improvement For gas turbine reliability purposes, for example, the redundancy of the main components; the quality of the components; the environmental factors; the sensing devices and actuators; the circuit and logic design, etc. In this paper, these methods are compared and presented from the reliability point of view The best choice between system cost and system complexity.