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Vibration-Isolation Characteristics in a Damped Vibration system with Thixotropic Materials
Sato, Taichi,Fujikawa, Naoki,Masuda, Hiromitsu,Tanaka, Kihachiro 대한기계학회 1996 International Sessions in Celebration of the 50th Vol.1 No.1
The dynamic behavior of a damped vibration system containing thixotropic materials is experimentally investigated. Thixotropic materials are substances that liquefy when they are stirred or shaken and return to the hardened state upon standing. We construct a vibration system containing thixotropic material and performed vibration tests using the vibration system with two rotating unbalances turning in opposite directions. The amplitudes of the transmitted force to the foundation and the displacement of the mass are measured. The tests indicate that the damped system containing thixotropic materials shows good vibration characteristics. As the consistency ol thixotropic materials increases, the transmitted force at resonance decreases, and even the degree of increase of the transmitted force at the higher values of the forcing frequency is smaller than in the experimental results of the viscous damper. These dynamic characteristics enable vibration to be significantly isolated in this system when the excitation frequency is changed.