Browse Publications Technical Papers 2000-01-3518
2000-12-04

Rubber Isolators - Measurements and Modelling using Fractional Derivatives and Friction 2000-01-3518

Measurements showing dynamic characteristics, stiffness and damping, of two rubber components having the same geometry but different blends, are presented. A model accounting for the rubber characteristics' frequency and amplitude dependencies is also presented. The amplitude dependency is realised by adding friction effects and the frequency dependency is included by a fractional calculus element called “spring-pot”. The model works in the time-domain with Newmark's time-stepping algorithm. Simulations display excellent agreement with measurements.

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