Simulating Influence of Operating Temperature on Bearing Preload in Romax


Presented by: Chad Labelle, Engineering Specialist - Systems, McLaren Engineering

Many gearbox architectures employ preloaded bearing arrangements. In practice, preload force varies with operating temperature. In order to accurately simulate this phenomenon a simulation model must be able to account for several key behaviors.  Namely, the model must be able to account for non-linear bearing stiffness, lateral growth from fit, temperature distribution, and housing deflection interaction between axes. Romax can be used to simulate this behavior provided that several settings and assumptions are incorporated into the model.

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