Finite Element Analysis For The Key Components Of 38MN Hydraulic Press

The development of new wall materials with the fly ash, construction wastes,metallurgical and chemical waste, gangue and other solid waste as raw material, will haveparticularly effective impact on improving resource utilization, improving the environment,and promoting the development of circular economy. Hydraulic press is the essentialequipment for the production of autoclave fly ash brick and autoclaved lime sand brick,whose capability directly influence the quality of brick.The press rack is in the under ofthe greatest force in the entire press system, it often has insufficient strength and stiffnessin the process of production, and has a large impact on the brick quality sometimes it willoccur an accident in the worst .In the paper,we make 38MN wire winding automatic hydraulic press as the objectof study, and verify the strength and stiffness of the rack using of the finite elementsoftware, ANSYS Workbench, and research the dynamic performance in the process ofpressing and optimize the key components to provide a theoretical guidance for the designof the new Press.In the paper ,firstly, we u nderstood the principle of 38MN wire winding automatichydraulic press,which is called press for short in the following ,we madethree-dimensional modeling for press rack (including upper beam, column and base) andmade a static analysis of the press using the finite element software to verify the strengthand stiffness of the press under static load, and made contact analysis of the press rack toverify the rationality of the pretension coefficient; Secondly, we made the modal analysisand Transient Dynamic Analysis of the press and made a detailed analysis of the dynamicperformance of the press, furthermore, we obtained the front six modal parameters of thepress and researched the affect of the pretension coefficient on the press mode to provide areference for the preload imposed; then, we made stress test on several key points in thepress rack using of the electrical measuring method to verify the reliability of the finiteelement results compared with finite element results; Finally, we made fatigue analysis ofthe piston rod because of its fracture and design optimization, the optimized structure has a high reliability for enterprises to improve efficiency compared with the originalstructure.