| The development of science technology accelerates the advancement of hydraulic technology. With more and more computer technology applied in hydraulic control field, there is a trend that hydraulic control technology and component should be digital. So the research and design of the digital servo valve is one of the most important aspects of nowadays hydraulic field.This thesis puts forward a new direct-actuated digital servo valve, based on the studying relevant workings, and also advanced a new method modeling in hydraulic system. The dynamic and static characteristics of the direct-actuated digital servo valve are investigated by utilizing the simulation software Matlab. The relationship between the static/dynamic characteristics and the fabric parameters of the digital servo valve is also discussed. The study also focused on nonlinearities in simulation investigation. Furthermore, the nonlinear results are compared to the linear ones. In order to measure the performance of the digital servo valve used in the displacement control system, communication... |