Paper Title:
Identification of the Dynamic Properties of Linear Joints Using Substructure Synthesis Method
  Abstract

In this thesis, a new identification method for joint stiffness and damping has been developed by using the substructure synthesis method and finite element modeling. The substructure synthesis method is stated firstly, according to the substructures are connected by joints and the equilibrium and compatibility conditions at the joints have to be fulfilled, establishing identification equation through completely frequency response function. Then, finite element model is established, and update this model, make use of the update model to replace the experimental model, using an accurate finite element model to obtain the required data. In order to ensure the stability of the numerical calculation, translate inconsistent equation into the general solution through the principle of least squares, besides the introduction of the concept of weighted, makes the measured data can be fully utilized. Finally, the method is applied to a simulated example and good agreement is found between identified and true parameters.

  Info
Periodical
Edited by
Ran Chen
Pages
712-718
DOI
10.4028/www.scientific.net/AMM.44-47.712
Citation
L. Li, L. G. Cai, T. N. Guo, Z. F. Liu, "Identification of the Dynamic Properties of Linear Joints Using Substructure Synthesis Method", Applied Mechanics and Materials, Vols. 44-47, pp. 712-718, 2011
Online since
December 2010
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