Elastomer bushing response: Experiments and finite element modeling

J. Kadlowec, A. Wineman, G. Hulbert

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Elastomer bushings are essential components in tuning suspension systems since they isolate vibration, reduce noise transmission, accommodate oscillatory motions and accept misalignment of axes. This work presents an experimental study in which bushings are subjected to radial, torsional and coupled radial-torsional modes of deformation. The experimental results show that the relationship between the forces and moments and their corresponding displacements and rotations is nonlinear and viscoelastic due to the nature of the elastomeric material. An interesting feature of the coupling response is that radial force decreases and then increases with torsion. The experimental results were used to assess bushing behavior and to determine the strength of radial-torsional coupling. The experimental results were also compared to finite element simulations of a model bushing. While finite element analysis predicted small displacements at the relaxed state reasonably well, the response to larger radial deformations and coupled deformations was not well captured.

Original languageEnglish (US)
Pages (from-to)25-38
Number of pages14
JournalActa Mechanica
Volume163
Issue number1-2
DOIs
StatePublished - Jun 2003

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Computational Mechanics

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