AN EXPRESSION FOR MECHANICAL PROPERTIES OF HIGH DAMPING RUBBER BEARINGS BY REGRESSION OF FULL SIZE PERFORMANCE TEST RESULTS

An analytical model that expresses mechanical properties, especially pressure dependent characteristics, of high damping rubber bearing in a simple form was proposed. The model was built through drawing regression equation based on a series of full size performance tests. It is possible to express the pressure dependent characteristics with a sufficient accuracy by including explanatory variables of products of the share strain and the pressure. Moreover, influence of load experience in the tests, and applicability to the bi-directional loading were also discussed.