抄録
In hydraulic system, because of the compressibility of the bubbles contained in oil, the working efficiency and the accuracy of position control will decrease. Moreover, the equipment will be damaged when bubbles collapse This subject topic of this paper is to investigate the mechanism of bubbles formation in Air/Hydro system on the basis of fluid transients theory. We found the negative pressure occured in the system, it leaded to the bubbles formation.According to these reasons, we gives some methods to deal with the problem. Besides the computation model is presented through system simplifying, the essential equations and the boundary conditions are established, and some results were gotten. At the same time, the experimental table was built for duplicating the bubble formed phenomenon, and the pressure of several specific points are obtained under different conditions We found the results of calculation are coincided with the these of experiment. it proves the computation model and boundary conditions are reasonable.At the end of this paper some conclusions are gived.
