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在设计工业自动控制系统时,可靠性是非常关键的因素。特别是在易燃、易爆、航天以及不允许生产中断的系统,可靠性乃是决定该系统是否能生存的关键。可靠性理论也随着现代化技术的进步而迅速发展,近年已逐步形成了一门边沿性科学。它的内容非常广泛而又复杂,大体上可概括为:从物理学的角度探索对象系统故障原因的故障物理现象和在此基础上预测系统的可靠性,并作出有效保证的可靠性管理等等。研究提高系统的可靠性,已成为工程技术人员和科学工作者广为探索的课题。一、可靠性的定义与计算方法可靠性的定义有好几种表示方法,一般
Reliability is a key factor when designing industrial automation systems. Especially in flammable, explosive, aerospace and non-production disruption system, the reliability is the key to determine whether the system can survive. The reliability theory has also developed rapidly with the progress of modern technology. In recent years, it has gradually formed a science of borderline. Its contents are very broad and complex, and can be broadly summarized as: to explore the physical phenomenon of failure of the target system from the perspective of physics and to predict the reliability of the system on the basis of this, and to make effective assurance of reliability management, etc. . Research to improve the reliability of the system has become a subject explored extensively by engineers, technicians and scientists. First, the reliability of the definition and calculation methods There are several ways to define the reliability of the general