ドーム可動席段床の低振動・低騒音化に関する研究(機械力学,計測,自動制御)

概要

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This paper describes the vibration and noise reduction of a stepping floor of a movable seat used in a dome. This seat is made of steel because of being movable. Consequently the vibration and noise occur due to the walking and the jumping of spectators and the problems appear to be that the noise makes it difficult to hear the announcer and the seat is uncomfortable to sit on. Then, the prediction of the reduction effect of the damping material is performed by the transient response calculation and the modal analysis, and the predicted values are compared with the experimental results. As a result, the calculation result is in good agreement with the experimental one and the reduction effect is simply expressed by the ratio of loss factors before and after countermeasures in case of being able to neglect the mass of the damping material.
一般社団法人日本機械学会の論文
2003-02-25