Analysis of hybrid viscous damper by real time hybrid simulations

Mark Laier Brodersen; Ge Ou; Jan Becker Høgsberg; Shirley Dyke

doi:10.1016/j.engstruct.2016.08.020

Analysis of hybrid viscous damper by real time hybrid simulations

Mark Laier Brodersen
, Ge Ou
, Jan Becker Høgsberg
, Shirley Dyke

Purdue University

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Results from real time hybrid simulations are compared to full numerical simulations for a hybrid viscous damper, composed of a viscous dashpot in series with an active actuator and a load cell. By controlling the actuator displacement via filtered integral force feedback the damping performance of the hybrid viscous damper is improved, while for pure integral force feedback the damper stroke is instead increased. In the real time hybrid simulations viscous damping is emulated by a bang-bang controlled Magneto-Rheological (MR) damper. The controller activates high-frequency modes and generates drift in the actuator displacement, and only a fraction of the measured damper force can therefore be used as input to the investigated integral force feedback in the real time hybrid simulations.

Original language	English
Journal	Engineering Structures
Volume	126
Pages (from-to)	675-688
ISSN	0141-0296
DOIs	https://doi.org/10.1016/j.engstruct.2016.08.020
Publication status	Published - 2016

Keywords

Hybrid control
Integral force feedback
MR damper
Real time hybrid simulation
Bang-bang controller

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10.1016/j.engstruct.2016.08.020

Brodersen etal 2016 postprintAccepted author manuscript, 9.49 MB

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title = "Analysis of hybrid viscous damper by real time hybrid simulations",

abstract = "Results from real time hybrid simulations are compared to full numerical simulations for a hybrid viscous damper, composed of a viscous dashpot in series with an active actuator and a load cell. By controlling the actuator displacement via filtered integral force feedback the damping performance of the hybrid viscous damper is improved, while for pure integral force feedback the damper stroke is instead increased. In the real time hybrid simulations viscous damping is emulated by a bang-bang controlled Magneto-Rheological (MR) damper. The controller activates high-frequency modes and generates drift in the actuator displacement, and only a fraction of the measured damper force can therefore be used as input to the investigated integral force feedback in the real time hybrid simulations.",

keywords = "Hybrid control, Integral force feedback, MR damper, Real time hybrid simulation, Bang-bang controller",

author = "Brodersen, \{Mark Laier\} and Ge Ou and H{\o}gsberg, \{Jan Becker\} and Shirley Dyke",

year = "2016",

doi = "10.1016/j.engstruct.2016.08.020",

language = "English",

volume = "126",

pages = "675--688",

journal = "Engineering Structures",

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T1 - Analysis of hybrid viscous damper by real time hybrid simulations

AU - Brodersen, Mark Laier

AU - Ou, Ge

AU - Høgsberg, Jan Becker

AU - Dyke, Shirley

PY - 2016

Y1 - 2016

N2 - Results from real time hybrid simulations are compared to full numerical simulations for a hybrid viscous damper, composed of a viscous dashpot in series with an active actuator and a load cell. By controlling the actuator displacement via filtered integral force feedback the damping performance of the hybrid viscous damper is improved, while for pure integral force feedback the damper stroke is instead increased. In the real time hybrid simulations viscous damping is emulated by a bang-bang controlled Magneto-Rheological (MR) damper. The controller activates high-frequency modes and generates drift in the actuator displacement, and only a fraction of the measured damper force can therefore be used as input to the investigated integral force feedback in the real time hybrid simulations.

AB - Results from real time hybrid simulations are compared to full numerical simulations for a hybrid viscous damper, composed of a viscous dashpot in series with an active actuator and a load cell. By controlling the actuator displacement via filtered integral force feedback the damping performance of the hybrid viscous damper is improved, while for pure integral force feedback the damper stroke is instead increased. In the real time hybrid simulations viscous damping is emulated by a bang-bang controlled Magneto-Rheological (MR) damper. The controller activates high-frequency modes and generates drift in the actuator displacement, and only a fraction of the measured damper force can therefore be used as input to the investigated integral force feedback in the real time hybrid simulations.

KW - Hybrid control

KW - Integral force feedback

KW - MR damper

KW - Real time hybrid simulation

KW - Bang-bang controller

U2 - 10.1016/j.engstruct.2016.08.020

DO - 10.1016/j.engstruct.2016.08.020

M3 - Journal article

SN - 0141-0296

VL - 126

SP - 675

EP - 688

JO - Engineering Structures

JF - Engineering Structures

ER -

Analysis of hybrid viscous damper by real time hybrid simulations

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Keywords

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