Effect of Friction on Electric Linear Load Simulator and Research on Friction Suppression

doi:10.3969/j.issn.1000-1093.2019.10.010

Abstract

Abstract: In order to suppress the effect of friction on electric linear load simulator (ELLS), the simulation analysis and experimental methods are used to analyze the effect of friction on ELLS, the genetic algorithm is used to identify the friction model in ELLS, and the relationship between friction and velocity is obtained. A hybrid control method of friction feedforward and variable gain PID is proposed, the friction feedforward compensation is used to eliminate the effect of friction, and the variable gain PID is used to further suppress the phase lag of ELLS at low velocity. Comparative simulation and experiment were made. The simulated analysis and the experimental results show that, compared with traditional PID control, the loading wave distortion of ELLS using the friction feedforward and variable gain PID is suppressed, and the loading error and phase lag are significantly reduced. The proposed control method can better suppress the effect of friction on ELLS and improve the loading accuracy. Key

Key words: electriclinearloadsimulator, identification, frictionmodel, frictionfeedforwardcompensation, variablegainproportion-integration-differentiation

CLC Number:

TP273⁺.3

PAN Weidong, FAN Yuanxun, LEI Jianjie, CAO Dawei, LU Pengcheng, XU Zhiwei. Effect of Friction on Electric Linear Load Simulator and Research on Friction Suppression[J]. Acta Armamentarii, 2019, 40(10): 2050-2059.

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第40卷
第10期2019 年10月兵工学报ACTA
ARMAMENTARIIVol.40No.10Oct.2019

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