International Journal for Multiscale Computational Engineering

ISSN for PRINT: 1543-1649

For Online Access

Best Paper Award Selection - Editorial Board Site

2003, Volume1

Issue 2&3

187 pages

DOI: 10.1615/IntJMultCompEng.v1.i23

Issue price - $356.00

Parviz E. Nikravesh
Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona, USA

Yi-shih Lin
Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona, USA

One interesting topic in multibody dynamics is how a reference frame is attached to a moving deformable body. Two known forms of reference axes are the nodal-fixed and the mean axes frames; the former is commonly used in structural finite element modeling, and the latter is known as a floating frame. In this article we introduce a new reference frame based on the principal axes that is also a form of floating frame. The equations of motion for a deformable body are derived first, and then the conditions for different types of reference axes are implemented. Next, the equations of motion for a rigid-deformable multibody system are constructed, where the deformation variables are kept in the nodal space. Through several simulation examples, some phenomena associated with each type of reference frame are discussed.

DOI: 10.1615/IntJMultCompEng.v1.i23.60 Download article, 18 pages

Article price - $35.00

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