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To improve tracking and synchronization control precision of electro-hydraulic shaking tables system, this paper presents a novel adaptive reaching law sliding mode controller (ARLSMC) for double shaking tables system with parameter uncertainty and disturbance. The ARLSMC combined a sliding mode controller based on a novel adaptive reaching law to improve dynamic performance with an adaptive controller...
In this paper, an analysis of the principle of the shaking table is carried out and a digital servo-valve controller for three-axis six-DOF shaking table based on TMS320F2812 is designed. The result was compared with the analogue controller. AD598 is selected as the modulator-demodulator to condition the displacement signal of the servo-valve main spool.AD7665 is adopted to acquire the conditioned...
The modeling and study of three-stage electro-hydraulic servo valve are presented in this paper. According to its construction and principle, its model is built. The results of simulation and experimental test are consistent, which proves the validity of the model. Based on the study of the model, the performances of three-stage electro-hydraulic servo valve are mainly affected by pilot valve performance,...
To develop higher performance three-stage electro-hydraulic servo valve, a new modeling software, AMEsim, is used to develop its non-linear model according to the construction and principles presented in this paper. The results of simulation and experimental test about an existing valve are consistent, which proves the model is right. Based on the analysis of the model, the performances of three-stage...
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