A FEM Formulation for Flexible Multi-Body System Dynamic Analysis

Jian Liu; Lv Zhou Ma; Yu Qin Yan; Y.F. Zhao

doi:10.4028/www.scientific.net/AMR.97-101.2836

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101A FEM Formulation for Flexible Multi-Body System...

A FEM Formulation for Flexible Multi-Body System Dynamic Analysis

Abstract:

A simple engineering language is used to present a geometrical non-linear formulation based on position description. Velocity, acceleration and strain are achieved directly from nodal position, not displacements. The proposed methodology is based on the minimum potential energy theorem. A non-dimensional space is created and the relative curvature and fibers length are calculated for both reference and deformed configurations and used to directly compute the strain energy at general points. Damping is introduced into the mechanical system by a rheonomic energy functional. The final formulation is shown simplifying the understanding and the implementation of large deflection analysis when compared with typical FEM formulations.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

2836-2839

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.2836

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Online since:

March 2010

Authors:

Jian Liu, Lv Zhou Ma, Yu Qin Yan, Y.F. Zhao

Keywords:

Crawler Crane, Dynamic Analysis, FEM Formulation, Flexible Multi-Body System

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