Modeling and Simulation of Transverse Cracks for Rotor-Bearing Systems PUBLIC ACCESS

[+] Author Affiliations
Tachung Yang, Shi-An Chen

Yuan Ze Institute of Technology, Taoyuan, Taiwan, ROC

Paper No. 96-TA-015, pp. V001T08A005; 6 pages
  • ASME 1996 Turbo Asia Conference
  • ASME 1996 Turbo Asia Conference
  • Jakarta, Indonesia, November 5–7, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7877-4
  • Copyright © 1996 by ASME


Undetected cracking of rotating shafts can lead to catastrophic failure of turbomachinery. This paper investigated the dynamic response of rotor-bearing systems containing transverse cracks with a finite element approach. The breathing effect of cracks was analyzed based on the whirling conditions of the rotor, and different crack models were posed for different rotating speeds. The strain energy released due to the cracks was calculated. Then, the finite element for the shaft portion containing cracks was formulated and incorporated into the system matrices of the rotor-bearing system.

Copyright © 1996 by ASME
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