碩士 / 淡江大學 / 航空太空工程學系碩士班 / 97 / In this research, an optimized position of a set of 2 mass-spring-damper vibration absorbers is proposed for a vibration mechanism device (such as optical disk drive or other mechanical vibration deck system). This vibration system is simulated by a rigid body deck with 4 corners supported by cubic springs and square dampers. Only out-of-plane motions are considered in this research. 2 point-mass absorbers are attached under this deck. A nonlinear 3-D theoretical model for this system is established by Lagrange’s equation. The analytical solution is obtained by the multiple time scale method. The IMSL © subroutine is employed for solving nonlinear system frequency response. The fixed points semi-analytic results in frequency domain are also acquired. The Floquet-method can apply a simply stability analysis. It is found that the existing vibration deck amplitude can be reduced by simply adding the absorbers at the end corner of the deck, without changing the main configurations.It is also found that the stability can be transformed by changing different position of the absorbers. This will not only save costs but also increase testing efficiency, achieving the most cost-effective vibration reduction result. This research provides a theoretical background for the preliminary vibration reduction design for industries.
| Identifer | oai:union.ndltd.org:TW/097TKU05295018 |
| Date | January 2009 |
| Creators | Ji-Yan Chen, 陳志彥 |
| Contributors | Yi-Ren Wang, 王怡仁 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 122 |
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