Reconstructing dynamic events from time-limited spatially distributed data

This paper presents a method of reconstructing dynamic events from limited photographically recorded responses. It is based on a wavelet representation of the unknown applied loading in conjunction with a general nite element program. The incorporation of regularization terms provides a robust solution to these usually ill-conditioned problems. The method allows for the data collected to be of dissimilar type (e.g. strain and displacement), as well as for the data to be collected remotely. As a demonstration of the method, multiple force reconstructions for an impacted plate with a hole are determined using synthetically generated Moir e displacement data