MULTI-INDEX FUSION-BASED FAULT DIAGNOSIS THEORIES AND METHODS

In this paper, using the information theory and the statistics analysis method, we have established the theory and method of faults diagnosis based on the multi-index fusion, including the information theory of multi-index diagnosis, diagnosis ability testing, indexes selecting, and Bayesian diagnosis modelling. And then, we applied the theories and methods to analyse the piston–liner wear condition of a diesel engine. In that, satisfactory results are achieved.