Comprehensive predictive control for vibration suppression based on piecewise constant input formulation

Ikuya Takamoto, Mizuki Abe, Yushin Hara, Keisuke Otsuka, Kanjuro Makihara

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a novel semi-active vibration suppression method based on model predictive control (MPC). Semi-active vibration suppression provides excellent damping performance, energy consumption, and stability during control. As the semi-active control input is often discontinuous, it may be difficult to predict. Hence, we combine semi-active vibration suppression and MPC to determine the control input trajectory arbitrarily. The proposed method, called predictive switching based on piecewise constant input (PSPCI), assumes that the piezoelectric charge remains constant when the control circuit is in the open state. Under this assumption, the future system state can be predicted for semi-active vibration suppression while reducing the computational load. The PSPCI method predicts the future work done by the transducer and effectively suppresses vibrations. Its effectiveness and robustness are demonstrated through simulations and experiments. The proposed PSPCI method enables the prediction of the semi-active control input and diversifies the control input determination for effective semi-active vibration suppression.

Original languageEnglish
JournalJournal of Intelligent Material Systems and Structures
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Model predictive control
  • multi-degree-of-freedom
  • periodic disturbance
  • piecewise constant formulation
  • piezoelectric transducer
  • semi-active control

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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