Paper Title:
Shock Response Analysis for a Journal-Bearing System by a Results Comparison
  Abstract

Shock response analysis of a journal-bearing system with the journal-bearing connection modeled as a spring link in radial direction and a dry contact joint respectively is presented. In the first model, the spring constants representing oil-film characteristic are determined by eight coefficients. In the second model, the friction forces are calculated using a modified Coulombs friction law. The contact detection points are the integration point and located at Gauss points. Only the contact normal pressure is treated as a Lagrange multiplier. The tangential contact stresses are calculated based on the penalty method. System’s time varying responses are obtained by FEM. A results comparison was performed between “spring link” model and “dry contact” model. The main conclusion is that stress distribution is nearly same in the system modeled by the two methods, but the amplitude in the former is smaller than that in the latter.

  Info
Periodical
Advanced Materials Research (Volumes 129-131)
Edited by
Xie Yi and Li Mi
Pages
79-84
DOI
10.4028/www.scientific.net/AMR.129-131.79
Citation
S. H. He, X. Y. Wu, "Shock Response Analysis for a Journal-Bearing System by a Results Comparison", Advanced Materials Research, Vols. 129-131, pp. 79-84, 2010
Online since
August 2010
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Price
$32.00
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