Reconstruction of Impact Force with Wavelet Deconvolution Technique

Hai TRAN; Hirotsugu INOUE

doi:10.11345/japannctam.64.0_OS11-01-03

The 64th Japan National Congress for Theoretical and Applied

Session ID : OS11-01-03

DOI https://doi.org/10.11345/japannctam.64.0_OS11-01-03

Conference information

Host: National Committee for IUTAM

Co-host: The Japan Society of Applied Physics, The Society of Chemical Engineers, Japan, Society of Automotive Engineers of Japan, The Japanese Geotechnical Society, Japan Society of Civil Engineers, The Japan Society for Industrial and Applied Mathematics, Japan Association for Wind Engineering, The Japan Society of Mechanical Engineers, The Meteorological Society of Japan, The Japan Society for Computational Engineering and Science, Japan Society for Computational Methods in Engineering, Architectural Institute of Japan, Atomic Energy Society of Japan, The Japan Society for Aeronautical and Space Sciences, The Japanese Society for Multiphase Flow, Japan Association for Earthquake Engineering, The Mathematical Society of Japan, The Japan Society of Naval Architects and Ocean Engineers, The Heat Transfer Society of Japan, The Physical Society of Japan, The Japan Society of Fluid Mechanics, The Japanese Society of Irrigation, Drainage and Rural Engineering

OS11-1

Reconstruction of Impact Force with Wavelet Deconvolution Technique

Hai TRAN, Hirotsugu INOUE

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Abstract

Reconstruction of impact force history from corresponding impact responses such as strain, acceleration, displacement, etc. is useful when measuring impact force acting on structures. In this study a wavelet deconvolution technique was applied to the impact force reconstruction. First, deconvolution technique using Haar wavelet was formulated. Then finite element simulation on the impact crushing of thin-walled square column was conducted. Comparisons of the reconstructed impact force to the one obtained by the finite element analysis demonstrated effectiveness of the wavelet deconvolution technique.

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