Active Vibration Isolation by Model Reference Adaptive Control

W.B.J. Hakvoort; G.J. Boerrigter; M.A. Beijen

doi:10.1016/j.ifacol.2020.12.2157

Active Vibration Isolation by Model Reference Adaptive Control

W.B.J. Hakvoort^*, G.J. Boerrigter, M.A. Beijen

^*Corresponding author for this work

Applied Mechanics

Research output: Contribution to journal › Conference article › Academic › peer-review

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Abstract

This paper proposes model reference adaptive control (MRAC) to actively isolate payloads from floor vibrations and direct disturbance forces. Adaptive feedforward control is used to counteract measured disturbances, whereas an adaptive feedback controller suppresses unmeasured disturbances using skyhook damping. In the considered rigid single degree of freedom system, the ideal controller gains only depend on the stiffness and damping properties of the suspension. The MRAC strategy is validated experimentally on a hard mounted vibration isolation system. Attenuation of acceleration levels beyond −40 dB are obtained in a wide frequency band 5−100 Hz and the root-mean-square (RMS) acceleration in the frequency region of interest (0.1 − 100 Hz) is reduced 32 times with respect to passive isolation.

Original language	English
Pages (from-to)	9144-9149
Number of pages	6
Journal	IFAC-papersonline
Volume	53
DOIs	https://doi.org/10.1016/j.ifacol.2020.12.2157
Publication status	Published - 2020
Event	21st IFAC World Congress 2020 - Virtual Event, Berlin, Germany Duration: 12 Jul 2020 → 17 Jul 2020 Conference number: 21 https://www.ifac2020.org/

Keywords

Active vibration isolation
Disturbance feedforward control
High-precision mechatronics
Model reference adaptive control
MRAC

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10.1016/j.ifacol.2020.12.2157Licence: CC BY-NC-ND

ArticleFinal published version, 731 KBLicence: CC BY-NC-ND

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title = "Active Vibration Isolation by Model Reference Adaptive Control",

abstract = "This paper proposes model reference adaptive control (MRAC) to actively isolate payloads from floor vibrations and direct disturbance forces. Adaptive feedforward control is used to counteract measured disturbances, whereas an adaptive feedback controller suppresses unmeasured disturbances using skyhook damping. In the considered rigid single degree of freedom system, the ideal controller gains only depend on the stiffness and damping properties of the suspension. The MRAC strategy is validated experimentally on a hard mounted vibration isolation system. Attenuation of acceleration levels beyond −40 dB are obtained in a wide frequency band 5−100 Hz and the root-mean-square (RMS) acceleration in the frequency region of interest (0.1 − 100 Hz) is reduced 32 times with respect to passive isolation.",

keywords = "Active vibration isolation, Disturbance feedforward control, High-precision mechatronics, Model reference adaptive control, MRAC",

author = "W.B.J. Hakvoort and G.J. Boerrigter and M.A. Beijen",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 The Authors. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0); 21st IFAC World Congress 2020, IFAC 2020 ; Conference date: 12-07-2020 Through 17-07-2020",

year = "2020",

doi = "10.1016/j.ifacol.2020.12.2157",

language = "English",

volume = "53",

pages = "9144--9149",

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AU - Hakvoort, W.B.J.

AU - Boerrigter, G.J.

AU - Beijen, M.A.

N1 - Conference code: 21

PY - 2020

Y1 - 2020

N2 - This paper proposes model reference adaptive control (MRAC) to actively isolate payloads from floor vibrations and direct disturbance forces. Adaptive feedforward control is used to counteract measured disturbances, whereas an adaptive feedback controller suppresses unmeasured disturbances using skyhook damping. In the considered rigid single degree of freedom system, the ideal controller gains only depend on the stiffness and damping properties of the suspension. The MRAC strategy is validated experimentally on a hard mounted vibration isolation system. Attenuation of acceleration levels beyond −40 dB are obtained in a wide frequency band 5−100 Hz and the root-mean-square (RMS) acceleration in the frequency region of interest (0.1 − 100 Hz) is reduced 32 times with respect to passive isolation.

AB - This paper proposes model reference adaptive control (MRAC) to actively isolate payloads from floor vibrations and direct disturbance forces. Adaptive feedforward control is used to counteract measured disturbances, whereas an adaptive feedback controller suppresses unmeasured disturbances using skyhook damping. In the considered rigid single degree of freedom system, the ideal controller gains only depend on the stiffness and damping properties of the suspension. The MRAC strategy is validated experimentally on a hard mounted vibration isolation system. Attenuation of acceleration levels beyond −40 dB are obtained in a wide frequency band 5−100 Hz and the root-mean-square (RMS) acceleration in the frequency region of interest (0.1 − 100 Hz) is reduced 32 times with respect to passive isolation.

KW - Active vibration isolation

KW - Disturbance feedforward control

KW - High-precision mechatronics

KW - Model reference adaptive control

KW - MRAC

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DO - 10.1016/j.ifacol.2020.12.2157

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SN - 2405-8963

VL - 53

SP - 9144

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JO - IFAC-papersonline

JF - IFAC-papersonline

T2 - 21st IFAC World Congress 2020

Y2 - 12 July 2020 through 17 July 2020

ER -

Active Vibration Isolation by Model Reference Adaptive Control

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Keywords

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