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Proceedings Paper

Three-dimensional experimental spatial dynamic response of a reciprocating Freon compressor
Author(s): David E. Montgomery; Robert L. West
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Paper Abstract

A scanning laser Doppler vibrometer (LDV) was used to model one frequency of the spatially continuous 3-D dynamic response of an operating Freon compressor using a finite element formulation. The geometry from a pre-existing finite element model provided the static shape model of a compressor. The scanning LDV measured the velocity response at thousands of locations on the pressurized operating compressor. Positionally registered velocity data was acquired at multiple scanning positions of the laser. A weighted least- squares discrete finite element model was used to reconstruct the continuous 3-D velocity response field from the experimental data. Dynamic 3-D angular velocities, displacements, and accelerations were easily computed from the full field velocity response model. Finally, dynamic strain and stress fields across the shell elements were extracted by directly postprocessing the dynamic response.

Paper Details

Date Published: 8 September 1994
PDF: 12 pages
Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); doi: 10.1117/12.185306
Show Author Affiliations
David E. Montgomery, Virginia Polytechnic Institute and State Univ. (United States)
Robert L. West, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 2358:
First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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