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Dynamic modeling and stability analysis of an axially oscillating beam undergoing periodic impulsive force
- Authors
- Yoo, Hong Hee; Kim, Sung Do; Chung, Jintai
- Issue Date
- Feb-2009
- Publisher
- ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
- Citation
- JOURNAL OF SOUND AND VIBRATION, v.320, no.1-2, pp 254 - 272
- Pages
- 19
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF SOUND AND VIBRATION
- Volume
- 320
- Number
- 1-2
- Start Page
- 254
- End Page
- 272
- ISSN
- 0022-460X
1095-8568
- Abstract
- A dynamic modeling method of an axially oscillating beam undergoing periodic impulsive force is proposed in the present work. An element-specific modeling method using a stretch deformation variable is employed to derive the linear equations of motion. The stiffness variation effect induced by the periodic impulsive force as well as the axially oscillating motion is included in the linear equations of motion. The accuracy of the proposed modeling method is verified by comparing its numerical solutions to those of a nonlinear finite element code. The effects of the impulse magnitude, the oscillating frequency, the oscillating speed amplitude and the modal damping ratio oil the dynamic stability of the beam are investigated with the modeling method. (C) 2008 Elsevier Ltd. All rights reserved.
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Related Researcher
- Chung, Jintai
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)