| Title |
An Experimental Study for the Shear Property Dependency of High Damping Rubber Bearings |
| Keywords |
high damping rubber bearing;prototype test;shear stiffness;equivalent damping ratio;dependence;고감쇠 고무받침;특성실험;전단강성;등가 감쇠비;의존성 |
| Abstract |
In this paper, the characteristics of high damping rubber bearing were studied through various prototype test. The characteristics of HDRB were dependent on displacements, repeated cycles, frequencies, vertical pressure, temperature, the capability of shear deformation and the vertical stiffness. The prototype test showed that the displacement was the most governing factor influencing on characteristics of HDRB. The effective stiffness and equivalent damping of HDRB were decreased with displacement, and increased with frequency. The effective stiffness was decreased with high vertical pressure, while the equivalent damping was increased. In which, the equivalent damping was more dependent on the vertical pressure than the effective stiffness. According to the results of this study, more careful examination is required to design the effective stiffness and equivalent damping ratio considering the dependencies of design displacement and exciting velocity. |