A modal reduction method for use with nonlinear simulations of flexible multibody spacecraftThis paper presents a modal truncation method that can be used to prepare the structural flexibility data required as input to flexible, multibody spacecraft simulation programs. The method allows one to truncate the structural models of each flexible body in the system such that the assembled system is free of undesired high frequency system modes. This truncation method enables reasonable simulation costs to be incurred while maintaining dynamic simulation fidelity in the frequency range of interest. A simple one-dimensional example is presented which provides a physical interpretation of the method's workings. In addition, results are presented from the application of the method to a complex spacecraft.
Document ID
19840058571
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Macala, G. A. (California Institute of Technology, Jet Propulsion Laboratory, Guidance and Control Section, Pasadena CA, United States)