Condition monitoring and fault diagnosis of operating machinery have been of the main interests for many years. Existing systems employ data driven models which has limited prediction capability. On the contrary, a physics based model can predict phenomena that the system has not seen before. It also provides a means for root cause analysis. However, major obstacles include the complexity involved and real-time feasibility. In this paper, we use the bond graph technique to construct an analytical, physics-based model. We use a reciprocating compressor as an example since it is a good representation of multi-domain processes with a variety of possible failure modes. The bond graph model is cross examined with a finite element model and ultimately validated. To show how one can benefit from this approach, cracked piston rod is simulated to generate vibration signals that can potentially be picked up from accelerometers mounted on the exterior surface of the compressor.
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ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 12–15, 2012
Chicago, Illinois, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-4500-4
PROCEEDINGS PAPER
Structural Fault Diagnosis of a Reciprocating Compressor Using Bond Graph Approach
Ehsan Mollasalehi,
Ehsan Mollasalehi
University of Calgary, Calgary, AB, Canada
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Seyed Abdolali Zareian Jahromi,
Seyed Abdolali Zareian Jahromi
University of Calgary, Calgary, AB, Canada
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Mario Forcinito,
Mario Forcinito
AP Dynamics Inc., Calgary, AB, Canada
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Qiao Sun
Qiao Sun
University of Calgary, Calgary, AB, Canada
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Ehsan Mollasalehi
University of Calgary, Calgary, AB, Canada
Seyed Abdolali Zareian Jahromi
University of Calgary, Calgary, AB, Canada
Mario Forcinito
AP Dynamics Inc., Calgary, AB, Canada
Wei Hu
AP Dynamics Inc., Calgary, AB, Canada
Qiao Sun
University of Calgary, Calgary, AB, Canada
Paper No:
DETC2012-71191, pp. 185-191; 7 pages
Published Online:
September 9, 2013
Citation
Mollasalehi, E, Zareian Jahromi, SA, Forcinito, M, Hu, W, & Sun, Q. "Structural Fault Diagnosis of a Reciprocating Compressor Using Bond Graph Approach." Proceedings of the ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B. Chicago, Illinois, USA. August 12–15, 2012. pp. 185-191. ASME. https://doi.org/10.1115/DETC2012-71191
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