Damping induced from the interaction between a vibrating cantilever and its surroundings

Chern Hwa Chen, Yuh Yi Lin, Yun Che Wang, Wen Ling Huang, Neng Lang Shih

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

It is important to eliminate parasitic damping sources in the apparatus for an experimental spectrometer. The parasitic damping can be subtracted from measured total damping that is due to different mechanisms, such as air damping or support loss. On the experimental front, we develop a thin-film beam shaker apparatus consisting of a bimorph piezo actuator and two fiber-optics probes for displacement measurements on the piezo and sample, respectively. The cantilever sample is sinusoidally loaded at its fixed end. From the shape of experimentally measured resonant peaks, the damping of the vibration system can be determined either by the full-width-at-half-maximum method or lorentzian curve fit. In this work, numerical coupled fluid-structure interaction (fsi) is simulated by the finite element method to extract understand the effects of air damping on the cantilever. Both static beam and vibrating beam are considered for the fsi calculation.

原文English
主出版物標題Advanced Materials Researches, Engineering and Manufacturing Technologies in Industry
頁面798-802
頁數5
DOIs
出版狀態Published - 2013
事件2013 2nd International Symposium on Materials Science and Engineering Technology, ISMSET 2013 - Guangzhou, China
持續時間: 2013 六月 272013 六月 28

出版系列

名字Advanced Materials Research
787
ISSN(列印)1022-6680

Other

Other2013 2nd International Symposium on Materials Science and Engineering Technology, ISMSET 2013
國家/地區China
城市Guangzhou
期間13-06-2713-06-28

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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