DESIGN FORMULAS FOR ROTATIONAL DEFORMATION OF NATURAL AND HIGH DAMPING RUBBER BEARINGS

Abstract

This paper presents design formulas for rotational deformation of several natural and high damping rubber bearings based on finite element analyses. At first, critical rotational angles on a natural rubber bearing in arbitrary rectangular shapes are computed and, design formula of the bearing is constructed. Then, material properties of the other three types of natural and high damping rubber materials are identified on the basis of several material tests and, the critical angles of the bearings with those materials are computed. From the results, the design formulas on those bearings are developed. Finally, the critical angles in oblique angle direction are computed for a natural rubber bearing and, its design formula is updated．