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Effect of centrifugal force on frequency characteristic of rotating hollow cylinders using a newly designed cylindrical super element

Bonakdar, M ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2006-14415
  3. Publisher: American Society of Mechanical Engineers (ASME) , 2006
  4. Abstract:
  5. A sixteen node cylindrical super element is presented for evaluating the free vibration characteristics of a rotating laminated cylinder with conventional boundary conditions. It is shown that the natural frequencies are affected considerably when the centrifugal force is also taken into account. The vibration frequencies of rotating finite cylinder, obtained by conventional finite element are used to evaluate the accuracy of this approach. The special case of a stationary cylinder with zero spinning velocity is also considered as a check on this method. Results indicate only few number of cylindrical super elements are capable of predicting the natural frequency of the rotating cylinder within the same limit as many elements used in the conventional finite element method. Copyright © 2006 by ASME
  6. Keywords:
  7. Boundary conditions ; Centrifugation ; Finite element method ; Natural frequencies ; Rotating machinery ; Vibration analysis ; Cylindrical super element ; Free vibration ; Rotating hollow cylinders ; Spinning velocity ; Cylinders (shapes)
  8. Source: 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006, Chicago, IL, 5 November 2006 through 10 November 2006 ; 2006 ; 10716947 (ISSN); 0791837904 (ISBN); 9780791837900 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2006/47683/1561/323073