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Spectral element
modeling and analysis of an axially moving thermoelastic
beam-plate
Kyungsoo Kwon and Usik Lee |
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Vol. 1 (2006), No. 4, 605–632
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Abstract |
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Axially moving thin-walled structures exposed to sudden external thermal loads may experience severe vibrations. For accurate predictions of the thermally induced vibrations, this paper develops a spectral element model for the axially moving beam-plates subjected to sudden external thermal loads. The spectral element model is formulated from the frequency-dependent dynamic shape functions which satisfy the governing equations in the frequency domain. Thus, when compared with the conventional finite element model in which simple polynomials are used as the shape functions, the spectral element model provides exact solutions by treating a whole uniform structure member as a single finite element, regardless of its length. Numerical studies are conducted to evaluate the present spectral element model and also to investigate the dynamic characteristics of an axially moving beam-plate subjected to a sudden thermal load on its upper surface. |
Keywords
Thermally induced vibration, beam-plate, axially moving
structure, spectral element model, spectral element
analysis, dynamic characteristics
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Milestones
Received: 28 September 2005
Revised: 5 December 2005
Accepted: 27 January 2006
Published: 1 August 2006
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Authors |
| Kyungsoo Kwon | |
| Department of Mechanical
Engineering Inha University 253 Yonghyun-Dong Nam-Ku, Incheon 402-751 Korea |
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| Usik Lee | |
| Department of Mechanical
Engineering Inha University 253 Yonghyun-Dong Nam-Ku, Incheon 402-751 Korea |
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