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In this paper, a new type of electro-hydraulic proportional control system with three way cartridge valve is proposed. By establishing its mathematical model and simulation model, it is compared with the control system of the high pressure unloading valve. It is shown that the control performance of the proposed scheme is better than the system of the high pressure unloading valve. With accumulator...
Manned underwater vehicle plays a significant role in underwater rescue. The key of this process is the docking between manned underwater vehicle and disable submarine within a certain angle. That means manned underwater vehicle has to have good maneuverability, especially the maneuverability of trim and heel. Ballast water system is a simple and effective way for the adjustment of trim and heel....
In this paper, the system functions(S-Function) such as Tracking-Differentiator (TD), Extended-State-Observer (ESO) and Non-linear-State-Error-feedback (NLSEF) were written, the model of Auto Disturbance Rejection Controller (ADRC) was established. Through a simple second-order system as the object, the ADRC and PID algorithms were simulated. After analysis and comparison of these two different control...
In this paper, an adaptive semi-active SSDV (synchronized switch damping on voltage) method based on the LMS algorithm is proposed and applied to the vibration control of a composite beam. In the SSDV method, the value of voltage source in the switching circuit is critical to its control performance. In the adaptive approach proposed in this study, the voltage coefficient is adjusted adaptively using...
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