Assumed modes method and flexible multibody dynamicsThe use of assumed modes in flexible multibody dynamics algorithms requires the evaluation of several domain dependent integrals that are affected by the type of modes used. The implications of these integrals - often called zeroth, first and second order terms - are investigated in this paper, for arbitrarily shaped bodies. Guidelines are developed for the use of appropriate boundary conditions while generating the component modal models. The issue of whether and which higher order terms must be retained is also addressed. Analytical results, and numerical results using the Shuttle Remote Manipulator System as the multibody system, are presented to qualitatively and quantitatively address these issues.
Document ID
19930067314
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tadikonda, S. S. K. (NASA Headquarters Washington, DC United States)
Mordfin, T. G. (NASA Headquarters Washington, DC United States)
Hu, T. G. (Grumman Corp. Space Station Integration Div., Reston, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: AIAA Guidance, Navigation and Control Conference, Monterey, CA, Aug. 9-11, 1993, Technical Papers. Pt. 1 (A93-51301 22-63)
Publisher: American Institute of Aeronautics and Astronautics