Control strategy research of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker

LUAN Qiang-li CHEN Zhang-wei HE Hui-nong

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (24) : 138-143.

PDF(993 KB)
PDF(993 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (24) : 138-143.
论文

Control strategy research of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker

  • LUAN Qiang-li1 CHEN Zhang-wei1 HE Hui-nong2
Author information +
History +

Abstract

Systematically researched the control strategy of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker, and designed an integrated controller used for the large-flow hydraulic shaker. The controller could simultaneously achieve the servo control and vibration control functions of the hydraulic shaker. In the process of servo control, a dual-PID servo-control strategy was presented for the 3-stage electro-hydraulic servo valve and the servo cylinder. In the process of vibration control, aiming at the good low-frequency characteristics of the hydraulic shaker, a waveform replication method based on the closed-loop iterative control was designed. Through the waveform replication tests with different time histories and different bandwidths on the hydraulic shaker controlled by the integrated controller, it indicates that the controller has a strong waveform control ability to achieve high-precision waveform replication on the hydraulic shaker.
Key words: the hydraulic shaker; the 3-stage electro-hydraulic servo valve; seismic waveform replication; road spectrum simulation

Key words

the hydraulic shaker / the 3-stage electro-hydraulic servo valve / seismic waveform replication / road spectrum simulation

Cite this article

Download Citations
LUAN Qiang-li CHEN Zhang-wei HE Hui-nong. Control strategy research of the 3-stage electro-hydraulic servo valve controlled hydraulic shaker[J]. Journal of Vibration and Shock, 2014, 33(24): 138-143
PDF(993 KB)

Accesses

Citation

Detail

Sections
Recommended

/