Model reduction in the simulation of interconnected flexible bodiesGiven the control system specifications for a system of interconnected rigid and flexible bodies, methods now exist for determining the system modes that do not interact 'strongly' with the controller. Once these important system modes are known, there still remains the problem of determining the modes of individual bodies that should be retained, since, in the final analysis, it is the modal information at the component level that must be fed into any multibody simulation code. Systematic identification of these component modes is achieved through a two-phase matrix diagonalization process starting with judiciously chosen submatrices of the system modal matrix.
Document ID
19890025290
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eke, Fidelis O. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Man, Guy K. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)