TY - GEN
T1 - Damping induced from the interaction between a vibrating cantilever and its surroundings
AU - Chen, Chern Hwa
AU - Lin, Yuh Yi
AU - Wang, Yun Che
AU - Huang, Wen Ling
AU - Shih, Neng Lang
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84886291586&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/AMR.787.798
DO - 10.4028/www.scientific.net/AMR.787.798
M3 - Conference contribution
AN - SCOPUS:84886291586
SN - 9783037858028
T3 - Advanced Materials Research
SP - 798
EP - 802
BT - Advanced Materials Researches, Engineering and Manufacturing Technologies in Industry
T2 - 2013 2nd International Symposium on Materials Science and Engineering Technology, ISMSET 2013
Y2 - 27 June 2013 through 28 June 2013
ER -