ABSTRACT
The system is based on the component, therefore, system failure is caused mainly by a component failure, study and analyze the fault of the individual components and its failure modes is a basic research of system failure, using FMEA risk analysis methods, which can identify system failures mode and effect, reduce the quality risk, eliminate defects, but when analysis a system, there are many complex and uncertain factors inevitably, it is difficult to quantitatively describe the primary and secondary relationship between different failure modes of system components, using fuzzy mathematical method to deal with uncertain information, quantitative analysis of the degree of impact of various risk factors on the system, according to the fuzzy sort of risk priority value of each risk factor, which can control factors of key components fuel systems to reduce the use of risk.
