推理分析法 ,又称逻辑推理法 ,是故障分析方法的基础。故障推理分析法是采用推理来寻找故障真实原因的方法。推理过程可概括为以下三步。a.从故障征象推测出故障本质原因。b.从本质原因出发 ,结合构造原理和故障机理推测出可能导致故障的常见原因。c.从常见原因推测出故障的真 Reasoning analysis, also known as logical reasoning, is the foundation of the failure analysis method. Fault reasoning analysis method is to use reasoning to find the true cause of the fault method. Reasoning process can be summarized as the following three steps. a. Inferred from the fault symptoms of the nature of the fault. b. For reasons of nature, combining the principle of construction and fault mechanism to infer the common causes of possible failures. c. Judging the trueness of the malfunction from common causes