A New Mixed Semi-active Control Strategy and Its Application to Vibration Control of High-speed Railway Vehicle

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (12) : 84-87.

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A New Mixed Semi-active Control Strategy and Its Application to Vibration Control of High-speed Railway Vehicle

Yingying Liao13, Yongqiang Liu23, Shaopu Yang23

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Abstract

In order to study a simple and easy to realize semi-active control strategies, Sky-hook(SH) control and Acceleration Driven Damping(ADD) control are analyzed by using the 1/4 car model. According to the analysis results, a mixed SH-ADD control strategy is introduced. Through replacing the transfer function curves under single frequency harmonic excitation by power spectral density curves under random excitation, calculating method of conversion factor is improved in the thesis. On the base of building whole model of high-speed railway vehicle, the modified SH-ADD control strategy is simulated and analyzed. The simulation results show that the new mixed control strategy can has good performance of vibration control in both low and middle-high frequency range, which lateral running performance is better than SH and ADD.

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semi-active control / high-speed railway vehicle / Sky-hook control / Acceleration Driven Damping control

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Yingying Liao;Yongqiang Liu;Shaopu Yang. A New Mixed Semi-active Control Strategy and Its Application to Vibration Control of High-speed Railway Vehicle[J]. Journal of Vibration and Shock, 2013, 32(12): 84-87