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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationAdvanced Materials Researches, Engineering and Manufacturing Technologies in Industry
Pages798-802
Number of pages5
DOIs
Publication statusPublished - 2013
Event2013 2nd International Symposium on Materials Science and Engineering Technology, ISMSET 2013 - Guangzhou, China
Duration: 2013 Jun 272013 Jun 28

Publication series

NameAdvanced Materials Research
Volume787
ISSN (Print)1022-6680

Other

Other2013 2nd International Symposium on Materials Science and Engineering Technology, ISMSET 2013
CountryChina
CityGuangzhou
Period13-06-2713-06-28

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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