供試体反力の実時間補償による振動台制御性能の向上 : 第1報,補償器設計の指針とシミュレーションによる検証(機械力学,計測,自動制御)

概要

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An improved shaking-table control method that can compensate the reaction force caused by a non-linear specimen in real-time has been developed. This method measures the reaction force and generates a drive force to cancel it. The compensation signal to generate the drive force is calculated by a reaction-force compensator, which consists of the inverse transfer function of the shaking-table actuating system, a filter to reduce the noise in the measured reaction-force signal, and a proportional element to stabilize the shaking-table characteristics. The motion of a shaking table loading a non-linear specimen was simulated. This simulation shows that the compensator effectively cancels the reaction force and that increasing the SN ratio of the measured reaction force increases this effect. Moreover, two means to measure the reaction force are presented. The first means are the loadcells between the table and the specimen. The second means are the loadcells between pistons and the table.
一般社団法人日本機械学会の論文
2002-11-25