659 上下方向低周波用動吸振器に関する研究

概要

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Design method and a special mechanism of dynamic adsorber for low frequency vertical vibration of large structure is presented. Generally speaking, it is very difficult to design dynamic absorber for very low frequency vertical vibration because spring of the absorber has to support weight of the large mass. At first, design method of a dynamic absorber for low frequency vertical vibration with simple coil-spring mass system is demonstrated. Next, design method of dynamic absorbers which have general displacement magnification systems and have lower natural frequency is presented. Finally, a special displacement magnification mechanism is proposed. By using this mechanism, a dynamic absorber which has very low vertical natural frequency with coil spring can be designed very easily. Furthermore, low frequency dynamic absorbers using normal metal bar in stead of coil spring can be designed by using such a mechanism.
社団法人日本機械学会の論文
2000-09-01