고분자 필름을 이용한 스프링-댐퍼 시스템의 동특성에 관한 실험적 연구

Coil springs are widely used in the industries of machinery, buildings, supplies and general well-rounded life by having a unique, superior efficiency and low-frequency vibration, but have the disadvantage of damping. In previous studies, to compensate for this disadvantage, a coil spring wrapped with the polymer film was evaluated for damping effect while maintaining the dynamic characteristics of system. Damping property of the polymer film was investigated base on the different film type, the magnitude of tension of the film, and number of layer of the film. The performance of the system is characterized by impact testing. In this paper, we evaluate the damping effect of the performance factor through simulation and determines the reliability as compared with experimental data. Also, we check the relative importance between the performance factor, and find the optimum value to maximize the damping effect through simulation.