In this paper experimental and numerical investigations are carried out to identify the presence of a crack in a cylindrical overhanging shaft with a propeller at the free end. In the experimental study, cracks of different depths are located at the (un-cracked) maximum bending moment position. Shaft response parameters for lateral (using an accelerometer) and torsional vibrations (using shear strain gages fixed at three different locations) are obtained using the modal analysis software, LMS Test Lab™. The experimental results are used to validate the numerical results obtained using the three-dimensional isoparametric elements (element types 186 and 187) available in the ANSYS FEM program; the open crack is embedded in the shaft and the mesh generation is suitably modified to incorporate the stress intensity effects present at the crack tip. From the results it is observed that the rate of change of torsional frequencies that occur during initial crack growth can be better used to detect crack presence in rotating shafts than bending frequencies.
Skip Nav Destination
ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
June 11–15, 2012
Copenhagen, Denmark
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4473-1
PROCEEDINGS PAPER
Crack Detection in Shaft Using Lateral and Torsional Vibration Measurements and Analyses
A. Tlaisi,
A. Tlaisi
Memorial University, St. John’s, NL, Canada
Search for other works by this author on:
A. Akinturk,
A. Akinturk
Memorial University, St. John’s, NL, Canada
Search for other works by this author on:
A. S. J. Swamidas,
A. S. J. Swamidas
Memorial University, St. John’s, NL, Canada
Search for other works by this author on:
M. R. Haddara
M. R. Haddara
Memorial University, St. John’s, NL, Canada
Search for other works by this author on:
A. Tlaisi
Memorial University, St. John’s, NL, Canada
A. Akinturk
Memorial University, St. John’s, NL, Canada
A. S. J. Swamidas
Memorial University, St. John’s, NL, Canada
M. R. Haddara
Memorial University, St. John’s, NL, Canada
Paper No:
GT2012-69921, pp. 693-702; 10 pages
Published Online:
July 9, 2013
Citation
Tlaisi, A, Akinturk, A, Swamidas, ASJ, & Haddara, MR. "Crack Detection in Shaft Using Lateral and Torsional Vibration Measurements and Analyses." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 7: Structures and Dynamics, Parts A and B. Copenhagen, Denmark. June 11–15, 2012. pp. 693-702. ASME. https://doi.org/10.1115/GT2012-69921
Download citation file:
10
Views
0
Citations
Related Proceedings Papers
Related Articles
Forced Response Analysis of a Mistuned, Compressor Blisk Comparing Three Different Reduced Order Model Approaches
J. Eng. Gas Turbines Power (June,2017)
Crack Depth Analysis of a Rotating Shaft by Vibration Measurement
J. Vib., Acoust., Stress, and Reliab (April,1988)
Identification of a Dynamic System Using Ambient Vibration Measurements
J. Appl. Mech (December,1998)
Related Chapters
List of Commercial Codes
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow
Fatigue Analysis in the Connecting Rod of MF285 Tractor by Finite Element Method
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)
Concluding Remarks and Future Work
Ultrasonic Welding of Lithium-Ion Batteries