This paper deals with the dynamic stiffness matrix formulation for the problem of torsional vibrations and stability of generally restrained doubly symmetric thinwalled beams of open section, resting on Winkler type continuous elastic foundation. An analytical method is developed, including the effects of warping and neglecting the effects of longitudinal inertia and shear deformation. The resulting transcendental frequency equation can be solved for various values of linear and rotational end restraint parameters. A computer program is developed, based on the dynamic stiffness matrix approach. The software consists of a master program to set up the dynamic stiffness matrix and to call specific subroutines to perform various system calculations. To demonstrate the influence of end restraints and warping on the torsional natural frequency, numerical results are obtained for the case of cantilever thinwalled beam of open section partially restrained against warping for various values of restraint parameter and warping parameter and the same are presented in suitable form.
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12th International Conference on Nuclear Engineering
April 25–29, 2004
Arlington, Virginia, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4688-1
PROCEEDINGS PAPER
Dynamic Stiffness Formulation for Torsional Vibrations of Generally Restrained Thin-Walled Beams of Open Section Resting on Continuous Elastic Foundation Available to Purchase
Chellapilla Kameswara Rao,
Chellapilla Kameswara Rao
Deccan College of Engineering, Hyderabad, India
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N. V. Srinivasulu
N. V. Srinivasulu
Chaitanya Bharati Institute of Technology, Hyderabad, India
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Chellapilla Kameswara Rao
Deccan College of Engineering, Hyderabad, India
N. V. Srinivasulu
Chaitanya Bharati Institute of Technology, Hyderabad, India
Paper No:
ICONE12-49082, pp. 213-221; 9 pages
Published Online:
November 17, 2008
Citation
Kameswara Rao, C, & Srinivasulu, NV. "Dynamic Stiffness Formulation for Torsional Vibrations of Generally Restrained Thin-Walled Beams of Open Section Resting on Continuous Elastic Foundation." Proceedings of the 12th International Conference on Nuclear Engineering. 12th International Conference on Nuclear Engineering, Volume 2. Arlington, Virginia, USA. April 25–29, 2004. pp. 213-221. ASME. https://doi.org/10.1115/ICONE12-49082
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