Zhonghua Cheng

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To improve the efficiency of reliability-centered maintenance (RCM) analysis, case-based reasoning (CBR), as a kind of artificial intelligence (AI) technology, was successfully introduced into RCM analysis process, and a framework for intelligent RCM analysis (IRCMA) was studied. The idea for IRCMA is based on the fact that the historical records of RCM(More)
In this paper, a three-species Lotka-Volterra food-chain model with spatial diffusion and time delays is investigated. We first analyze the local stability of the steady states and the existence of Hopf bifurcation to this system under homogeneous Neumann boundary conditions. We consider the effects of impulses on the dynamics of the above food-chain model(More)
Because railway locomotives are complex and highly correlated with each other among its components, it is difficult to make criticality evaluation by using traditional methods. In the present work, a criticality evaluation index model of the locomotive is established and the Monte Carlo simulation method is employed to obtain the criticality priority of the(More)
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