An experimental study on modelling and damping force tracking control of a magnetorheological damper

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Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (12) : 260-265.

ZHANG Jiyang1, ZHANG Ze1, CUI Long2 , DU Hao1

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Abstract

In order to improve the accuracy of damping force tracking control of magnetorheological damper, the forward and inverse dynamic models of magnetorheological fluid damper are established by using vector weighted average algorithm (INFO) and Bayesian nonlinear regression (BP) network respectively. The compound control strategy of feedforward inverse model and fuzzy control feedback is constructed, and the semi-active tracking control of damping force is realized. The tracking effects of inverse model feedforward control and compound control strategy and the tracking applicability of compound control strategy in each frequency band are compared by experiments. The results show that the compound control strategy can achieve better tracking effect, and the tracking accuracy is 6.4% higher than that of the feedforward inverse model control strategy; the approximation accuracy of the composite control strategy is more than 95% in the 0-7 Hz frequency band; in the 7-10 Hz frequency band, it can also achieve 85% approximation accuracy, which verifies the effectiveness of the force tracking control algorithm.

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inverse model / magnetorheological damper / force tracking / control

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ZHANG Jiyang1, ZHANG Ze1, CUI Long2, DU Hao1. An experimental study on modelling and damping force tracking control of a magnetorheological damper[J]. Journal of Vibration and Shock, 2024, 43(12): 260-265

References

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