729 圧電素子を用いたセルフセンシング梁構造のシステム同定と制御系設計

概要

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This paper addresses system identification and vibration control of a cantilever with a piezoelectric materials (PZT), based on the concept of smart materials and structures, and discusses a method for separating a sensing signal from measured signal including control input signal. The input-output relationship of a self-sensing system on the cantilever with PZT can be described by the state space expression with a direct transmission part. Adopting observer theory can be achieved to estimate state vectors, and be realized a state feedback controller such as the LQ controller. Simulation results by identified model using the 4SID (Subspace State Space Identification method) show that the proposed method can be suppressed the vibration of the cantilever without separating sensor signal by using the bridge circuit.
一般社団法人日本機械学会の論文
2000-09-01