TY - GEN
T1 - Error analysis for correlation algorithm based servo valve frequency characteristic measurement
AU - Chang, Huayao
AU - Wang, Junzheng
AU - Zhao, Jiangbo
AU - Wang, Shoukun
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - Correlation algorithm
KW - Error analysis
KW - Frequency characteristic
UR - http://www.scopus.com/inward/record.url?scp=81055126340&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.128-129.1438
DO - 10.4028/www.scientific.net/AMM.128-129.1438
M3 - Conference contribution
AN - SCOPUS:81055126340
SN - 9783037852842
T3 - Applied Mechanics and Materials
SP - 1438
EP - 1442
BT - Measuring Technology and Mechatronics Automation IV
T2 - 4th International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2012
Y2 - 6 January 2012 through 7 January 2012
ER -