Least squares (LS) estimation has been extensively used for parameter identification and model-based diagnosis. However, if ill-conditioning is present, the LS estimation approach tends to generate imprecise results and thus impacts the diagnostic performance. In this paper, an adjusted least squares approach is proposed to deal with the ill-conditioning problem in the diagnosis of compliant sheet metal assembly process. The adjusted LS approach is able to overcome the ill-conditioning and give precise results for certain linear combinations of the faults. Simulations and industrial case study are conducted to compare the diagnostic performance of the adjusted and regular LS approach. In addition, a two-stage assembly model is developed for further fault isolation with inclusion of additional measurement information.
Skip Nav Destination
Article navigation
August 2001
Technical Papers
Adjusted Least Squares Approach for Diagnosis of Ill-Conditioned Compliant Assemblies
Q. Rong,
Q. Rong
General Electric Corp., Cleveland, OH 44112
Search for other works by this author on:
J. Shi,
J. Shi
Dept. of Industrial and Operations Engineering, The University of Michigan, Ann Arbor, MI 48109
Search for other works by this author on:
D. Ceglarek
D. Ceglarek
Dept. of Industrial Engineering, The University of Wisconsin-Madison, Madison, WI 53706-1572
Search for other works by this author on:
Q. Rong
General Electric Corp., Cleveland, OH 44112
J. Shi
Dept. of Industrial and Operations Engineering, The University of Michigan, Ann Arbor, MI 48109
D. Ceglarek
Dept. of Industrial Engineering, The University of Wisconsin-Madison, Madison, WI 53706-1572
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received August 1999; revised March 2000. Technical Editor: E. C. DeMeter.
J. Manuf. Sci. Eng. Aug 2001, 123(3): 453-461 (9 pages)
Published Online: March 1, 2000
Article history
Received:
August 1, 1999
Revised:
March 1, 2000
Citation
Rong, Q., Shi, J., and Ceglarek, D. (March 1, 2000). "Adjusted Least Squares Approach for Diagnosis of Ill-Conditioned Compliant Assemblies ." ASME. J. Manuf. Sci. Eng. August 2001; 123(3): 453–461. https://doi.org/10.1115/1.1365116
Download citation file:
Get Email Alerts
Related Articles
Multiple Fault Diagnosis Method in Multistation Assembly Processes Using Orthogonal Diagonalization Analysis
J. Manuf. Sci. Eng (February,2008)
Dimensional Fault Diagnosis for Compliant Beam Structure Assemblies
J. Manuf. Sci. Eng (November,2000)
Assembly Fixture Fault Diagnosis Using Designated Component Analysis
J. Manuf. Sci. Eng (May,2005)
Fault Diagnosis of Multistage Manufacturing Processes by Using State Space Approach
J. Manuf. Sci. Eng (May,2002)
Related Proceedings Papers
Related Chapters
Unit Concurrent Fault Diagnosis Based on Artificial Immune System and Evidence Theory Design of Unit Fault Diagnosis System Software
Proceedings of the International Conference on Technology Management and Innovation
Design of Fault Diagnosis System of Industrial Boiler Based on MATLAB
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Fault Diagnosis of Nuclear Components by Kohonen Self-Organizing Maps (PSAM-0068)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)