セルフセンシング・アタチュエータを用いたはりのロバストな制振制御

概要

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The self-sensing actuator is a new concept for intelligent material, where a single piezoelectric element simultaneously functions as both a sensor and an actuator. This idea should be advantageous in many aspects of control, especially for vibration control of flexible structures. The key component of this device is an electric bridge circuit that includes a piezo element. This circuit could provide significant information about strain in the element if it were well-balanced. Our aim is to use μ-synthesis to design a controller which guarantees that the performance of a self-sensing actuator is robust against perturbation of the bridge balance and to confirm the advantages of this technique from the viewpoint of control. Experimental results show that the self-sensing actuator driven by the designed controller exhibits excellent performance in suppressing the vibration of a cantilever and is robust compared with the conventional control scheme.
一般社団法人日本機械学会の論文
1996-12-25