Vibration Suppression of Electromechanical Actuator Considering Backlash Nonlinearity

Abstract As an electromechanical drive system, nonlinear factors are unavoidable in electromechanical actuator (EMA). In this paper, elasticity of shaft and backlash nonlinearity are considered in the model, the effects of elasticity and backlash on EMA are analyzed. In order to suppress the vibrati...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2355; no. 1; pp. 12021 - 12031
Main Authors Fu, Bangsheng, Qi, Hui, Xu, Jiangtao, Wang, Shaobo
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2022
Subjects
Actuators
Control methods
Elasticity
Limit cycle oscillations
Nonlinear control
Nonlinearity
Physics
Vibration analysis
Vibration control
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Summary:Abstract As an electromechanical drive system, nonlinear factors are unavoidable in electromechanical actuator (EMA). In this paper, elasticity of shaft and backlash nonlinearity are considered in the model, the effects of elasticity and backlash on EMA are analyzed. In order to suppress the vibration caused by nonlinearity and elasticity, A nonlinear control method based on backstepping method is proposed. The simulation results show that this method can eliminate the limit cycle oscillation (LCO) caused by backlash, and effectively suppress the vibration.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2355/1/012021