Design and Analysis of HED Direct Action Type and Boosting Type Lifting Mechanism based on ANSYS

This paper introduces performance characteristics of two lifting mechanisms of Hydraulic Elevator Dam (HED), which are: direct action type lifting mechanism and boosting type lifting mechanism. Research based on different actual working conditions of water conservancy, applying INVENTOR software to establish the three-dimensional model of HED with the height of 4m and the width of 6m, then import the model into ANSYS software, adopting Finite Element analysis of stress conditions, stress distribution, stress and deformation conditions of HED. Through the theoretical calculation of two lifting mechanisms in different angles, to calculate and analyze the cylinder stress. The results show that the direct action type HED is more suitable for the height range of 1~4m, the diameter of the cylinder is small, stroke is longer, and have good stability. But with the increase of dam height, the cylinder selection of direct action type is limited by bore and stroke. While, the cylinder diameter of boosting type is bigger, stroke is shorter, and the connecting rod design of boosting type HED has obvious advantages to reduce the cylinder thrust when water retaining in the normal water level, prolonging service life of the cylinders, and also avoided the problem of hydraulic cylinder stroke limitation due to higher dam elevation. So Boosting HED is more suitable for the height range of 4~8m.In this paper, it’s provided theoretical basis for the future design and development of HED.