特定周波数の反力抑制を考慮した振動試験機の制御系設計(機械力学,計測,自動制御)

概要

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This paper presents a practical control methodology of vibration testing system to evaluate acceleration responses for building/mechanical structures. The reaction force generated by a specimen generally deteriorates motion performance of the system, resulting in the lower control accuracy of vibration tests. In order to provide the precise motion, therefore, a 2-degrees-of-freedom control structure is adopted, where both the reaction force generated by the specimen and the tracking performance can be compensated. The feedback compensator is designed to shape the characteristic of disturbance suppression, and the feedforward compensator based on the coprime factorization expression is designed to improve the servo characteristic. The proposed compensation algorithm has been verified by experiments using a prototype of shaking table system.
一般社団法人日本機械学会の論文
2008-07-25