Accession Number : ADA332839

Title :   A QR Decomposition Method for Flexible Multibody Dynamics

Descriptive Note : Technical rept

Corporate Author : ILLINOIS UNIV AT CHICAGO CIRCLE DEPT OFMECHANICAL ENGINEERING

Personal Author(s) : Shabana, A. A.

PDF Url : ADA332839

Report Date : NOV 1997

Pagination or Media Count : 26

Abstract : The performance and efficiency of multibody simulation codes depend largely on the selection of the coordinates used to formulate the dynamic equations of multibody systems. The choice of the coordinates defines the structure of the system equations of motion as well as the numerical procedure required for the solution of these equations. Extensive research efforts have been devoted to examine the effect of the coordinate selection on the complexity of the formulation as well as the efficiency and performance of the computer algorithms used in rigid multibody. This paper describes an efficient procedure for the computer implementation of the absolute nodal coordinate formulation for flexible multibody applications.

Descriptors :   *DEFORMATION, *MECHANICAL ENGINEERING, *ALGEBRAIC GEOMETRY, COMPUTER PROGRAMS, ALGORITHMS, SIMULATION, DYNAMICS, FINITE ELEMENT ANALYSIS, ROTATION, DECOMPOSITION, NONLINEAR ALGEBRAIC EQUATIONS, LAGRANGIAN FUNCTIONS.

Subject Categories : Numerical Mathematics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE