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Vibration control for various structures with time-varying properties via model-free adaptive controller based on virtual controlled object and SPSA
| Title: | Vibration control for various structures with time-varying properties via model-free adaptive controller based on virtual controlled object and SPSA |
| Authors: | Yonezawa, Ansei Browse this author | | Yonezawa, Heisei Browse this author | | Kajiwara, Itsuro Browse this author →KAKEN DB |
| Keywords: | Active vibration control | | Model-free control | | Virtual controlled object | | Adaptive control | | Simultaneous perturbation stochastic approximation | | Self-tuning |
| Issue Date: | 1-May-2022 |
| Publisher: | Elsevier |
| Journal Title: | Mechanical systems and signal processing |
| Volume: | 170 |
| Start Page: | 108801 |
| Publisher DOI: | 10.1016/j.ymssp.2022.108801 |
| Abstract: | This study presents a simple active vibration controller with a self-tuning mechanism free from a mathematical model of an actual controlled object. First, a virtual controlled object (VCO), which is defined as a single-degree-of-freedom (SDOF) system, is inserted between an actuator model and an actual controlled object. Traditional model-based control theories are applied to a twodegree-of-freedom (2DOF) system composed of the actuator and the VCO instead of a model of the actual controlled object to realize a model-free vibration controller. Then a self-tuning method based on the simultaneous perturbation stochastic approximation (SPSA) is introduced to the VCO-based model-free controller to obtain sufficient damping performances for various controlled objects. The model-free controller design is easily achieved because the traditional model-based control theory can be applied to the 2DOF system composed of the actuator and the VCO. Moreover, the proposed self-tuning mechanism provides sufficient vibration suppression effects for various controlled objects without manual controller tunings. Simulation studies compare the damping performance of the VCO-based model-free adaptive control scheme with that of the conventional approach. The simulations employ five controlled objects with different structures and characteristics, including time-varying properties. The proposed control scheme provides better damping effects than the conventional method for all controlled objects. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/85707 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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