Experimental investigation on free vibration of foam-core sandwich plate with and without circular polymer columns
Free vibration modes of foam-core sandwich plates with and without polymer columns were experimentally identified from frequency response tests. The responses were made at selected locations on the plate surface by attaching a single-axis accelerometer to measure out-of-plane response. Resonant freq...
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| Main Authors: | , , , , |
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| 格式: | Article |
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Trans Tech Publications, Switzerland
2014
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| 主题: | |
| 在线阅读: | http://eprints.utm.my/id/eprint/52802/ https://dx.doi.org/10.4028/www.scientific.net/AMR.845.297 |
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| 总结: | Free vibration modes of foam-core sandwich plates with and without polymer columns were experimentally identified from frequency response tests. The responses were made at selected locations on the plate surface by attaching a single-axis accelerometer to measure out-of-plane response. Resonant frequencies, relative damping ratios and mode shapes were established for the lowest 3 out-of-plane modes found in the frequency range of 0-900 Hz. The results show that the vibration characteristics were affected by the sandwich structure configuration and material properties. |
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