Engine Interference Parts Pressure Assembly Process Analysis And Calculation Systems Development Based On ANSYS

In order to ensure the accuracy and efficiency of the assembly, automotive engine parts interference fit assembly requires the use of automatic pressure assembly (referred to as press-fit), achieved by the automatic press-fit equipment. Selection of actuator and press-fit process control become one of the hot spots to improve engine performance. This paper aims to study the process of press-fit and press-fit force-displacement curve (F-S), optimizing press-fit control mode.The pressure engine parts during assembly interference analysis and calculation systems based on ANSYS is developed by the actual engineering requirements.In the paper, aiming at the research the maximum force the engine interference parts press-fit and the F-S curve by using computer software technology and finite element method. The pressure engine parts during assembly interference analysis and calculation systems based on ANSYS is developed.Firstly, the press-fit of the engine parts were analyzed and as an example of the interference with rod bushing assembly to calculate the contact pressure and pressed into force in theory. Aiming at the rod bushing press fit for the finite element simulation. F-S curve and contact pressure is obtained. The results showed that the theoretical calculation and finite element analysis results are close.Then, the secondary development tools of ANSYS and the secondary development technology based on VC++ and ANSYS are discussed in the paper. The secondary development of ANSYS is realized by using VC++. Besides, the data communication of ANSYS with VC++ and ANSYS run over pre-judgment technology is realized.Finally, the system interface, post-processing functions were designed based on VC++ and ANSYS secondary development and the programming interface technology of VC++, complete the development of pressure engine parts during assembly interference analysis and calculation systems based on ANSYS. And the achievement of the engine press-fit analysis APDL is compiled. To rod bushing, for example, finished running the demo system.The results show that for the engine pressure, finite element analysis results is reliable, the development of pressure engine parts during assembly interference analysis and calculation systems based on ANSYS is feasible. Visual interactive interface, enables engineers to quickly grasp and use. Systems analysis results achieved on the selection of the actual press-fit pieces devices perform and press-fit control mode provides a theoretical guidance.