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The most significant research progress and accomplishment in our project is on the modelling, analysis and designs of stabilizing joints for coupled structures. In a series of papers, we have studied second order dynamic structures modelling vibrating strings and cables, and fourth order dynamic structures modelling vibrating beams. We are able to classify all linear dissipative joints into types. Dr. H.H. West of the Civil Engineering Department of the Pennsylvania State University has collaborated with us and completed mechanical designs for all of them. Numerical and experimental verification have also been carried out. Dr. Chen's Ph.D. student M.P. Coleman is now using the Cyber 205 supercomputer to compute eigenfrequencies of a damped plate. Experiments were conducted at the MIPAC Facility of the University of Wisconsin in collaboration with Dr. D.L. Russell.