Validation of a Rotor Dynamics Model with Viscoelastic Bearing Supports
نویسندگان
چکیده
The demand for silent bearing applications has started the research to asses the effect of a viscoelastic damping layer in the vicinity of the bearing, for example between the bearing outer ring and the housing. In order to predict the dynamic behaviour of rolling bearing applications a 3D nonlinear time dependent computational model is developed. Both the vibration generation and the vibration transmission characteristics of the rolling bearing are accounted for. Viscoelasticity is described both in the time and frequency domain by a generalized Maxwell model. The modelling procedure is validated by means of experiments on a rotor dynamic test rig. The results show that vibrations generated by the bearing-shaft arrangement can be isolated from the housing by applying a viscoelastic bearing support.
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