Determination of Dynamic Forces From Wave Motion Measurements

[+] Author and Article Information
J. E. Michaels, Yih-Hsing Pao

Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 14853

J. Appl. Mech 53(1), 61-68 (Mar 01, 1986) (8 pages) doi:10.1115/1.3171740 History: Received December 20, 1984; Revised August 15, 1985; Online July 21, 2009


An experimental method has been developed for generating oblique forces with known orientations and time histories. Recorded signals from several forces were analyzed by an iterative deconvolution method to determine their orientations and time histories. The recovered values agree closely with the exact ones for these controlled sources. These experiments are a valuable test of source characterization methods that may be applied to seismic data from earthquake sources or to signals recorded from the acoustic emission of cracks.

Copyright © 1986 by ASME
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