Finite Element Analysis For Loading Platform Of Hydraulic Cylinder Testing

Loading platform is an important component of Hydraulic Cylinder Testing, and bench and pulley institutions is the important part of the loading platform. In this paper, the key parts of the loading platform and bench in the loading platform are made a series of finite element analysis of the structure. The overall structure of the test bench is made of left bench,left-middle bench,right-middle bench,right bench,stent, middle stent and other components. Bench is mainly used to bear and install loading cylinder and pulley, whose structure and force condition is very complex. Pulley consist of pulley frame,pull-pressure sensor, pin and other components. It makes the test cylinder and loading cylinder achieve the stable connection through the pull pressure sensor. When it is applied,due to the stress sometimes is great, it lead to fatigue damage incidents on pulley, bringing heavy losses to the enterprise production. Therefore, to improve the reliability of the loading platform and service life, the design of the key parts of test bench and pulley is of great practical significance.This paper is entrusted by a hydraulic cylinder factory manufacturer, making a finite element analysis in the key components of the test bench and pulley. The structure characteristic of loading platform is analyzed. First, pulley and bench of the loading platform are respectively created entity modeling through Pro/E software, achieving data sharing by interface technology; According to the idea of finite element discretization, a finite element model is created, reasonable grid partition,reasonable boundary conditions, analysis and calculation. Finally, the result is obtained by calculating. According to the results of finite element analysis and strength theory, the key parts of the pulley and bench were made check in strength and the distribution of stress and strain is obtained, therefore, the damage of area is determined. The maximum stress of the bench and pulley is far lower than the material of allowable stress. Under the premise of strength, the thickness of the bench and pulley can reduced properly. It can save material and reduce weight, thus the cause of destruction is analyzed, which ensure the rationality and reliability of the design. This method increases the designing efficiency and reduces the design and manufacturing cost of the loading platform. As noted, the result of finite element analysis is consistent with the actual condition. Therefore, this research is correct-believable in theory and there is a guiding significance to the actual test and the production process.