Parameter Modeling And Temperature Field Analysis Of The Oil-free Scroll Vacuum Pump

With high cleanness, simple structure, smaller size and low noise, the oil-free scroll vacuum pump is welcome in the field of oil-free vacuum obtainment. Although many manufacturers have been researched on this pump in our state, there is no one having the ability to produce the pump. Developing oil-free scroll vacuum pump which meet the need of state is the duty of internal scientists.Engaging in my hierophant's key item, the parameter design and its finite element analysis of the oil-free scroll vacuum pump are realized.Problems such as the oil-free scroll vacuum pump's parameter design,model's repairing,parameter load's loading and the temperature field of the fixed and orbiting scroll are deeply engaged in this paper.Temperature field,stress field and the deformation caused by the heat of the scroll vacuum pump were simulated and studied with a real physical model of the fixed scroll and orbiting scroll of oil-free scroll vacuum pump based on ANSYS in this disquisition. UG system is used to create solid model of the fixed scroll and orbiting scroll of oil-free scroll vacuum pump with material property. The solid model can be viewed and checked in any direction and the size of the model can be changed to evaluate the design. In order to optimize the geometry of the fixed scroll and orbiting scroll of oil-free scroll vacuum pump, ANSYS system is used to analyze their temperature increase, stress and heat deformation. Analyze result proved corrective of the original design of the scroll pump, and the results can be of some technological interest in the designing of the oil-free scroll vacuum pump.Grip—the UG system's second developing language is used in this paper to realize the three-dimensional entity model of the oil-free scroll vacuum pump. The best model will be set up automatically after entering several key numbers, moreover, that parameter model can be modified in the UG system. Consequently, the oil-free scroll vacuum pump's automatic design can be achieved and the veracity and efficiency are improved. Parameter modeling,grid division and control,material definition loading and boundary conditions can be actualized when using the APDL programme language and macro technique to organize and manage the finite element analysis commands of the ANSYS system. In this disquisition, the secondary development language APDL and UIDL are used synthetically to programme with the purpose of controlling the state of the parameter heat load infliction that based on the variables of space and time on the real physical model of the oil-free scroll vacuum pump-the fixed scroll. The way to calculate the equation of the heat load and the making of the user's interfaces are also related in this disquisition. This disquisition can be of some technological interest in the parameter designing which is based on the ANSYS system.Problems such as the communicating of the UG system and the ANSYS system, and the model's repairing and transmission are realized in this paper. Consequently, work such as the grid division,loading,and calculating of the model in the ANSYS system can be done successfully. Therefore, the UG system and the ANSYS system are united together organically and this combination compensated the limitation of the ANSYS system which can not build a complex model easily. All about this can do the finite element analysis of projects with easier process and better result.