Electro-Hydraulic Forming (EHF) is a high rate sheet metal forming process based on the electrical discharge of voltage capacitors in water-filled chamber. During discharge, pulsed pressure wave propagates from electrodes and forms blank into die. The performed literature review shows that this technology suitable for parts broad range dimensions complex shapes. One barriers broader implementat...

Abstract: The paper presents a new control strategy for active vehicle suspensions using electrohydraulic actuators based on Takagi-Sugeno (T-S) fuzzy modelling technique. As the electrohydraulic actuator dynamics is highly nonlinear, the T-S fuzzy modelling technique using the idea of “sector nonlinearity” is applied to exactly represent the nonlinear dynamics of electrohydraulic actuator in a...

Aim of the present document is to present a strategy for the analysis and simulation of DDV electrohydraulic actuators, employed in fly-by-wire helicopters, using object-oriented techniques. A complete, detailed, DDV hydraulic servoactuator model assembled using the Modelica library for mechatronic electrohydraulic systems, presented in Deliverable 6.1, is described and a simple procedure for i...

In general, the first and the most important step in system analysis, prediction and control is the proper model of the system. In order to design the controller of nonlinear electrohydraulic system, several modeling techniques are proposed: the transfer function of the electrohydraulic system is identified using first-principle method, and the intelligent models are built by fuzzy modeling and...

The automatic depth control electrohydraulic system of a certain minesweeping tank is complex nonlinear system, and it is difficult for the linear model obtained by first principle method to represent the intrinsic nonlinear characteristics of such complex system. This paper proposes an approach to construct accurate model of the electrohydraulic system with RBF neural network trained by geneti...

BACKGROUND Patients with end-stage liver disease have an increased risk of symptomatic gallstone disease, as well as complications associated with cholecystectomy. We hypothesized that peroral transpapillary cholecystoscopy with electrohydraulic lithotripsy of gallbladder stones is technically feasible and beneficial in patients who are high operative risks. DESIGN Observational, descriptive....