The Research of Gas Path Trouble Diagnosing for a Given Turbo-Shaft Engine in the Stable Condition

This paper presents the research results of trouble diagnosing methods for a given turbo shaft engine.According to the monitoring functional requirements,applying gas path parameter analysis principle,the measured parameters which reflect the performance degradation of monitoring components are determined.A diagnostic model was established,with which methods of diagnosiing six faults by using six and four measured parameters were explored.