Predictive Switching Vibration Control Based on Harmonic Input Formulation

Takamoto, Ikuya; Abe, Matanobu; Hara, Yushin; Nakahara, Takeshi; Otsuka, Kiyoshi; Makihara, Kanjuro

doi:10.1016/j.sna.2020.112271

Cited by 7 publications

(10 citation statements)

References 30 publications

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“…To validate the proposed passive TMD system in the protected structure test-bench implementation, the passive TMD performance was evaluated for three study cases under harmonic excitation with a frequency range from 5 to 10 Hz, and an amplitude of 250 * 10 −6 m: (1) open circuit case without damping; (2) damping de � 32.8 N•s/m corresponding to the external resistive load R load � 500 Ohm; and (3) short circuit case when the damping coefficient is maximum at de � 64.7 N•s/m. As it may cause damage to the protected structure, the case without TMD was not considered.…”

Section: Resultsmentioning

confidence: 99%

“…As passive vibration absorption devices are limited to a specific narrow operation frequency bandwidth to reduce the unwanted influence of machine-induced vibrations, different control techniques under harmonic-based vibrations have been proposed, implemented, and investigated over decades. Takamoto et al [1] proposed a new method by integrating model predictive and semiactive controls, and such a control strategy is known as predictive switching based on harmonic input (PSHI). e PSHI predicted the system's future states by assuming the harmonic control inputs and harmonic disturbances that caused resonance.…”

Section: Introductionmentioning

confidence: 99%

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Frequency‐Based Control Strategy for Compact Electromagnetic Tuned Mass Damper

Kopylov

Chen

Abdelkareem

2021

Shock and Vibration

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The control of harmonic machine-induced vibration has been a common task in the engineering scope. The passive tuned mass dampers represent the most reliable and practical approach to reduce such excessive vibration. Additionally, different control strategies can be implemented on TMDs to improve the attenuation performance further. However, most of the proposed control strategies for TMDs represent cost and complex systems with many sensors, which hinders the broad implementation. In this paper, the frequency-based semiactive control (FBC) strategy was proposed for an electromagnetic tuned mass damper (ETMD). The concept of a controllable system with switched transistor was utilized for the proposed control strategy. The proposed control policy's effectiveness was validated by experimental results, where the controlled ETMD was applied on a protected mass test bench. This paper concluded that the proposed control strategy has a significant advantage over the passive TMD. The reduction of 14% of the excessive harmonic vibration for the protected structure was observed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Frequency‐Based Control Strategy for Compact Electromagnetic Tuned Mass Damper

Kopylov

Chen

Abdelkareem

2021

Shock and Vibration

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“…When the charge after inversion violates this constraint, switching is not performed. In the conventional method of semi-active vibration suppression (Takamoto et al, 2020), which determines the switch timing based on the target input, no constraints can be imposed on the actual control input. On the other hand, constraints can be imposed on the actual control input in the PSPCI method because it directly derives the switch timing.…”

Section: Pspci For Semi-active Vibration Suppressionmentioning

confidence: 99%

“…where the coefficient value (subscript V) is defined at a constant voltage, V is the piezoelectric voltage, y is the observation vector, and G Kal is the steady-state Kalman gain (Takamoto et al, 2020). In practice, the modal state value varies according to the circuit state, but this variation is neglected because the piezoelectric coefficient is small.…”

Section: Pspci For Semi-active Vibration Suppressionmentioning

confidence: 99%

“…Mai et al (2020) used MPC in a semi-active suspension system to handle the physical constraints of the damping force. Takamoto et al (2020) proposed semi-active vibration suppression combined with MPC for MDOF systems based on the development of Nakahara and Fujimoto (2014). This proposed method is referred to as predictive switching based on harmonic input (PSHI) because a harmonic control input is assumed for the prediction process.…”

Section: Introductionmentioning

confidence: 99%

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

Takamoto

Abe

Hara

et al. 2021

Journal of Intelligent Material Systems and Structures

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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.

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