This paper presents a novel method of multiscale association for analyzing a turbogenerator accident having strange behaviors and serious consequence. Wave index (WI) and credibility of sensor fault are proposed based on multiscale analysis of the recorded data, and then the associational degree of WI is used to detect sensor fault. In addition, mechanism models are built to verify that detection. Furthermore, maximum likelihood method and neural network are applied to estimate the confidence interval of the fault sensor and the true signal. The estimation has been used to clearly explain the cause of this accident.
Issue Section:
Gas Turbines: Structures and Dynamics
1.
Sehgal
, R.
, Gandhi
, O. P.
, and Angra
, S.
, 2003, “Failure Cause Identification of Tribo-Mechanical Systems Using Fault—Tree a Digraph Approach
,” Tribol. Int.
0301-679X, 36
(12
), pp. 889
–901
.2.
Yu
, D.
, Hu
, Q.
, and Bao
, W.
, 2004, “Combining Rough Set Methodology and Fuzzy Clustering for Knowledge Discovery From Quantitative Data
,” Proc. Chin. Soc. Electr. Eng.
0258-8013, 24
(6
), pp. 205
–210
.3.
H
, B. R.
, 1986, “General Rotating Machinery Expert System
,” Proceedings of Expert System 1986
Bringhton, UK
, pp. 79
–83
.4.
Uraikula
, V.
, Chan
, C. W.
, and Tontiwachwuthikul
, P.
, 2007, “Artificial Intelligence for Monitoring and Supervisory Control of Process Systems
,” Eng. Applic. Artif. Intell.
0952-1976, 20
(2
), pp. 115
–131
.5.
Liao
, S.-H.
, 2005, “Expert System Methodologies and Applications: A Decade Review From 1995 to 2004
,” Expert Systems With Applications
, 28
(1
), pp. 93
–103
.6.
Yang
, B.-S.
, Lim
, D.-S.
, and Tan
, A. C. C.
, 2005, “Vibex: An Expert System for Vibration Fault Diagnosis of Rotating Machinery Using Decision Tree and Decision Table
,” Expert Systems With Applications
, 28
(4
), pp. 735
–742
.7.
Filippetti
, F.
, Franceschini
, G.
, Tassoni
, C.
, and Vas
, P.
, 2000, “Recent Developments of Induction Motor Drives Fault Diagnosis Using ai Techniques
,” IEEE Trans. Ind. Electron.
0278-0046, IE-47
(5
), pp. 994
–1005
.8.
Coudert
, O.
, and Madre
, J. C.
, 1994, “Metaprime: An Interactive Fault-Tree Analyzer
,” IEEE Trans. Reliab.
0018-9529, 43
(1
), pp. 121
–127
.9.
C.
, T. T.
, and Z.
, W. Y.
, 1996, “Vibration Analysis and Diagnosis of a Cracked Shaft
,” J. Sound Vib.
0022-460X, 192
(3
), pp. 607
–620
.10.
Venkatasubramanian
, V.
, Rengaswamy
, R.
, Yin
, K.
, and Kavuri
, S. N.
, 2003, “A Review of Process Fault Detection and Diagnosis Part I: Quantitative Model-Based Methods
,” Comput. Chem. Eng.
0098-1354, 27
(3
), pp. 293
–311
.11.
Venkatasubramanian
, V.
, Rengaswamy
, R.
, and Kavuri
, S. N.
, 2003, “A Review of Process Fault Detection and Diagnosis Part II: Qualitative Models and Search Strategies
,” Comput. Chem. Eng.
0098-1354, 27
(3
), pp. 313
–326
.12.
Zhang
, J.-X.
, Xu
, M.-Q.
, Huang
, W.-H.
, Zhang
, J.-Y.
, and Zhang
, G.-B.
, 2001, “Application of Black Box to Fault Diagnosis of Rotating Machine
,” J. Harbin Inst. Technol.
1005-9113, 8
(1
), pp. 83
–86
.13.
Bakshi
, B. R.
, 1999, “Multiscale Analysis and Modeling Using Wavelets
,” J. Chemom.
0886-9383, 13
(3–4
), pp. 415
–434
.14.
Agrawal
, R.
, Faloutsos
, C.
, and Swami
, A.
, 1993, “Efficient Similarity Search in Sequence Databases
,” Proceedings of the Fourth International Conference on Foundations of Data Organization and Algorithms
, pp. 69
–84
.15.
Yi
, B. K.
, and Roh
, J. W.
, 2004, “Similarity Search for Interval Time Sequences
,” Database Systems for Advances Applications, Ninth International Conference, DASFAA
, pp. 17
–19
.16.
Fitzgerald
, A. E.
, Umans
, S. D.
, and Kingsley
, C.
, Jr., 2002, Electric Machinery
, McGraw-Hill
, New York
.17.
Leonard
, J. A.
, Kramer
, M. A.
, and Ungar
, L. H.
, 1992, “Using Radial Basis Functions to Approximate a Function and Its Error Bounds
,” IEEE Trans. Neural Netw.
1045-9227, 3
(4
), pp. 624
–627
.18.
Chen
, S.
, Cowan
, C. F. N.
, and Grant
, P. M.
, 1991, “Orthogonal Least Squares Learning Algorithm for Radial Basis Function Networks
,” IEEE Trans. Neural Netw.
1045-9227, 2
(2
), pp. 302
–309
.Copyright © 2008
by American Society of Mechanical Engineers
You do not currently have access to this content.
