船舶主机故障分层诊断

Gradated Fault diagnosis of Marine Propulsion Diesel Engine

本文对船舶动力装置的结构层次进行了分析，提供了船舶主机分层诊断模型。通过对各故障下热工参数的相关分析，提出了分类诊断方法，介绍了基于分层诊断模型的诊断步骤。

In this paper, the structural gradations of marine power plant are analysed, and a gradated model for marine main engine fault diagnosis is presented. Through coherent analysis of thermodynamic parameters under different faults, a fault classifying method and diagnosing steps based on the gradated model are proposed.