Vibration and Reduction Analysis fo a CLD Covered Beam

• Main Authors: LAI, B. Y., 賴炳佑
• Other Authors: Huang, S. C.
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/22791600359471252264

碩士 === 國立臺灣科技大學 === 機械工程系 === 92 === This thesis presents the vibration and reduction analysis for partial constrained layer damping(CLD) treatment of beams. The equations of motion of beam with partial CLD treatment are derived by energy principle and equilibrium relations. This model, unlike the previous, used just two displacement functions：one is the in-plane placement and the other is the transverse displacement of beam. In the free vibration, the frequencies and the mode shapes in a sense of exactness are solved for various coverage ratios and different coverage positions. Experimental analysis on PCLD are conducted to measure the vibration reduction quantities and compare to the theoretical results. The derived theory and obtained results hopefully would provide, the engineers very useful information in evaluating vibration reduction for different constrained layer damping (CLD) treatment of beams.