Fault Diagnosis Based on Bond Graph for Hydraulic Variable Pitch System

Xi Yun Yang; Wei Liu; Jin Xia Li

doi:10.4028/www.scientific.net/AMM.48-49.1401

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Fault Diagnosis Based on Bond Graph for Hydraulic Variable Pitch System
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 48-49Fault Diagnosis Based on Bond Graph for Hydraulic...

Fault Diagnosis Based on Bond Graph for Hydraulic Variable Pitch System

Abstract:

A fault diagnosis based on bond graph model is proposed for hydraulic variable pitch system. Because the knowledge representation of bond graph model can provide information of cause and effect between components, a bond graph model of hydraulic variable pitch system is given above rated wind speed. A fault tree, using cause and effect analysis by back propagation, is developed. Qualitative value of parameters is assigned and the fault source is detected by analyzing boundary parameters of fault tree. Comparing with quantitative fault diagnosis based on model, the bond graph fault diagnosis is more flexible and has good completeness.

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Periodical:

Applied Mechanics and Materials (Volumes 48-49)

Pages:

1401-1405

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.48-49.1401

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Online since:

February 2011

Authors:

Xi Yun Yang, Wei Liu, Jin Xia Li

Keywords:

Bond Graph Model, Fault Diagnosis, Fault Tree, Hydraulic Variable Pitch System

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