Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base

Hidekazu Nishimura; Akihito Kojima

doi:10.1115/DETC97/VIB-3800

Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper proposes a design method for an active vibration isolation controller for a multi-degree-of-freedom structure with uncertainties of its base. It is demonstrated that a controller which has a desired performance can be designed even if we don't precisely know the base dynamics by using the criterion function for the purpose of suppression of the interaction between the controlled structure and its base. In order to minimize this interaction we select the acceleration of the lowest mass of the controlled structure and the relative displacement between the lowest mass and its upper mass as the controlled variables. By simulations and experiments it is verified that the designed controller improves both the control performances and the robust performance under the existence of the base dynamics with uncertainties.

Original language	English
Title of host publication	16th Biennial Conference on Mechanical Vibration and Noise
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791880418
DOIs	https://doi.org/10.1115/DETC97/VIB-3800
Publication status	Published - 1997
Externally published	Yes
Event	ASME 1997 Design Engineering Technical Conferences, DETC 1997 - Sacramento, United States Duration: 1997 Sept 14 → 1997 Sept 17

Publication series

Name	Proceedings of the ASME Design Engineering Technical Conference
Volume	1B-1997

Conference

Conference	ASME 1997 Design Engineering Technical Conferences, DETC 1997
Country/Territory	United States
City	Sacramento
Period	97/9/14 → 97/9/17

ASJC Scopus subject areas

Mechanical Engineering
Computer Graphics and Computer-Aided Design
Computer Science Applications
Modelling and Simulation

Access to Document

10.1115/DETC97/VIB-3800

Cite this

Nishimura, H., & Kojima, A. (1997). Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base. In 16th Biennial Conference on Mechanical Vibration and Noise (Proceedings of the ASME Design Engineering Technical Conference; Vol. 1B-1997). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC97/VIB-3800

Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base. / Nishimura, Hidekazu; Kojima, Akihito.
16th Biennial Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers (ASME), 1997. (Proceedings of the ASME Design Engineering Technical Conference; Vol. 1B-1997).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishimura, H & Kojima, A 1997, Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base. in 16th Biennial Conference on Mechanical Vibration and Noise. Proceedings of the ASME Design Engineering Technical Conference, vol. 1B-1997, American Society of Mechanical Engineers (ASME), ASME 1997 Design Engineering Technical Conferences, DETC 1997, Sacramento, United States, 97/9/14. https://doi.org/10.1115/DETC97/VIB-3800

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AB - This paper proposes a design method for an active vibration isolation controller for a multi-degree-of-freedom structure with uncertainties of its base. It is demonstrated that a controller which has a desired performance can be designed even if we don't precisely know the base dynamics by using the criterion function for the purpose of suppression of the interaction between the controlled structure and its base. In order to minimize this interaction we select the acceleration of the lowest mass of the controlled structure and the relative displacement between the lowest mass and its upper mass as the controlled variables. By simulations and experiments it is verified that the designed controller improves both the control performances and the robust performance under the existence of the base dynamics with uncertainties.

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Active vibration isolation control for a multi-degree-of-freedom structure with uncertainties of its base

Abstract

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Conference

ASJC Scopus subject areas

Access to Document

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