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O. Wallrapp* and D. Sachau#

*FB Feinwerktechnik, Fachhochschule Munich, Germany
#Institute Robotics and System Dynamics, German Aerospace Research Establishment (DLR), Wessling, Germany

doi:10.4203/ccp.26.6.2

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O. Wallrapp, D. Sachau, "Space Flight Dynamic Simulations using Finite Element Results in Multibody System Codes", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Computational Mechanics", Civil-Comp Press, Edinburgh, UK, pp 149-158, 1994. doi:10.4203/ccp.26.6.2

Abstract

Multibody codes are efficient tools to simulate the nonlinear dynamic behaviour of flexible multibody systems undergoing large overall motions accompanied by small elastic deformation. This paper presents a general way to prepare the data including geometric stiffening terms of a flexible body using results of a finite element analysis. The computation of body data is done outside the finite element code by matrix manipulations only. For the matrices of the equations of body motion, a standardized object-oriented data structure is used. Consequently, the data set is independent of the formulation of the multibody system code. The simulation of a space flight truss structure is presented to illustrate the proposed method.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 26 ADVANCES IN COMPUTATIONAL MECHANICS Edited by: M. Papadrakakis and B.H.V. Topping Paper VI.2 Space Flight Dynamic Simulations using Finite Element Results in Multibody System Codes O. Wallrapp* and D. Sachau# *FB Feinwerktechnik, Fachhochschule Munich, Germany #Institute Robotics and System Dynamics, German Aerospace Research Establishment (DLR), Wessling, Germany doi:10.4203/ccp.26.6.2 purchase the full-text of this paper Full Bibliographic Reference for this paper O. Wallrapp, D. Sachau, "Space Flight Dynamic Simulations using Finite Element Results in Multibody System Codes", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Computational Mechanics", Civil-Comp Press, Edinburgh, UK, pp 149-158, 1994. doi:10.4203/ccp.26.6.2 Abstract Multibody codes are efficient tools to simulate the nonlinear dynamic behaviour of flexible multibody systems undergoing large overall motions accompanied by small elastic deformation. This paper presents a general way to prepare the data including geometric stiffening terms of a flexible body using results of a finite element analysis. The computation of body data is done outside the finite element code by matrix manipulations only. For the matrices of the equations of body motion, a standardized object-oriented data structure is used. Consequently, the data set is independent of the formulation of the multibody system code. The simulation of a space flight truss structure is presented to illustrate the proposed method. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £70 +P&P)
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