machinery. In this paper, we propose a new method, by combining the fuzzy entropy of LMD-
SVD and Multilayer Perceptron (MLP) neural network to overcome the problem of
identification and classification faults in gearbox system. The LMD process allows the
vibration signal to decompose into series of Product functions (PF). The result obtained from
fuzzyEn of LMD are defined as the input vectors of the SVD. This SVD is used to reduce the …