초록 열기/닫기 버튼
The wire mount, which is made of metal and is suitable for harsh environments, has a rubber-like nonlinear hysteresis (for example, stiffness and damping). To estimate the nonlinear property according to the excitation acceleration, the transmissibility and phase were measured through a single-axis sine sweep test. The measured transmissibility and phase were applied to a one-degree-of-freedom system to estimate the stiffness and viscous damping coefficient. As a result of the estimation, the damping and stiffness differ according to the excitation acceleration level and frequency, and tend to decrease as the excitation acceleration level increases. As a vibration isolator, the wire-mount three-axis seismic test was conducted to confirm the performance, and the results were compared with the single-axis test and discussed.
키워드열기/닫기 버튼
Wire mount, Frequency-Acceleration Dependant, Dynamic Stiffness, Seismic testing
