Article | Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016 | Identification Scheme for the Nonlinear Model of an Electro-Hydraulic Actuator Linköping University Electronic Press Conference Proceedings
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Title:
Identification Scheme for the Nonlinear Model of an Electro-Hydraulic Actuator
Author:
W.C. Leite Filho: Space Mechanics and Control Division, Instituto Nacional de Pesquisas Espaciais, Brazil J. Guimaraes: Space Mechanics and Control Division, Instituto Nacional de Pesquisas Espaciais, Brazil
DOI:
10.3384/ecp17142789
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Full text (pdf)
Year:
2018
Conference:
Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
Issue:
142
Article no.:
115
Pages:
789-793
No. of pages:
5
Publication type:
Abstract and Fulltext
Published:
2018-12-19
ISBN:
978-91-7685-399-3
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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This work presents the building of a nonlinear model of an electro-hydraulic actuator in order to understand the limit cycle phenomenon that appears when it is used in a closed loop control system. Previously, a first harmonic analysis had been used to identify that system, but the results were unsatisfactory. Therefore, this work aims to build on that model with the use of Fast Fourier Transforms as a way to recognize previously unseen nonlinearities. Hardware in the loop tests are then used in order to find the proper parameters that create a particular limit cycle. Simulation results show that such approach is successful.

Keywords: nonlinear model, FFT, hardware in the loop, actuator model

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
W.C. Leite Filho, J. Guimaraes
Title:
Identification Scheme for the Nonlinear Model of an Electro-Hydraulic Actuator
DOI:
http://dx.doi.org/10.3384/ecp17142789
References:
No references available

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
W.C. Leite Filho, J. Guimaraes
Title:
Identification Scheme for the Nonlinear Model of an Electro-Hydraulic Actuator
DOI:
https://doi.org10.3384/ecp17142789
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