A GPA diagnostic system foraeroengine applications

查看全文 作　　者：Yi-Guang Li(School of Engineering,Cranfield University,Cranfield,Bedford MK43 0AL,England)

出　　处：《航空动力学报》索引2007年第22卷第6期,共11页

摘　　要：In this research,a GPA(Gas Path Analysis) diagnostic system enhanced with GPA Index is described for gas path sensor and component fault diagnosis.A method of measurement correction is used in order that the measurement data obtained at un-standard ambient and operating conditions can be used for diagnostic analysis.The developed diagnostic system has been implemented into a Cranfield University gas turbine performance and diagnostic analysis software PYTHIA for gas turbine performance degradation analysis.The developed method and software have been applied to a model aero gas turbine engine to test the effectiveness of the system.The analysis shows that the developed diagnostic system can diagnose degraded sensor and components effectively using performance deviation measured at un-standard ambient and operational conditions.Theoretically,the idea of the diagnostic approach can be applied to different gas turbine engines. 关键词：航空发动机燃气涡轮诊断系统气体分解

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A GPA diagnostic system foraeroengine applications

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