Fuzzy Fault Diagnosis of a Diesel Engine Non-start

The diesel locomotive plays an important role in the field of transport,and the engine maintenance work is the prerequisite and guarantee for the locomotive normal working.In this paper,we first establish the fault tree model of locomotive engine 16V240ZJ on the basis of engine non-start as the top event.Then we combines the fuzzy mathematics theory and fault tree analysis method for failure diagnosis of 16V240ZJ engine's abnormal start-up.We obtained the fuzzy probability curve and top events probability confidence interval by analyzing the fuzzy fault tree qualitatively and quantitatively.It provides a fuzzy analysis basis for solving the problem of 16V240ZJ engine's abnormal start-up.