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Structural Engineering and Mechanics Volume 16, Number 5, November 2003 , pages 627-641 DOI: https://doi.org/10.12989/sem.2003.16.5.627 |
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Computation of structural intensity for plates with multiple cutouts |
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M. S. Khun, H. P. Lee and S. P. Lim
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| Abstract | ||
| The structural intensity fields of rectangular plates with single cutout and multiple cutouts are studied. The main objective is to examine the effect of the presence of cutouts on the flow pattern of vibrational energy from the source to the sink on a rectangular plate. The computation of the structural intensity is carried out using the finite element method. The magnitude of energy flow is significantly larger at the edges on the plate near the cutout boundary parallel to the energy flow. The effects of cutouts with different shape and size at different positions on structural intensity of a rectangular plate are presented and discussed. A case study on a plate with two cutouts is also presented. | ||
| Key Words | ||
| structural intensity; vibration; plates; energy flow. | ||
| Address | ||
| Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 | ||