Modeling and Simulation on Axial Piston Pump Based on Virtual Prototype Technology
Axial piston hydrostatic pump is an important hydraulic component, which is applied widely in both industry and mobile machine. However, the piston pump has complicated structure and composite high-speed motion, and it is very difficult to research exactly on the pump. So the pump model is always simplified to a great degree. But the simplifications bring the considerable deviation.With the development of computer and multi-body dynamics, the virtual prototype technology (VPT) is used to simulate hydraulic system and components. In case of the axial piston pump, it is convenient and flexible to build the complicated physical model, which is a 3-D model based on the real piston pump. The actual kinematics pairs of the parts can be added to the model in ADAMS (a multi-body dynamics software) and the fluid characteristics are calculated by AMEsim (a hydraulic software) and also added to the model. Then the model becomes a virtual prototype of axial piston pump, and it can work in computer like a real piston pump. So its pressure pulsation, motion principle, stress of parts and so on can be researched.This paper starts from the development of the VPT as the introduction. After the brief description of the principle, the modeling process of the virtual prototype of the axial piston pump V30 is explained. Then a special emphasis is put on the relationship between the dynamics model and the fluid model. It is followed by some simulation on the flow ripple, motion principle, the stress distribution of the piston and so on. Finally the advantages and disadvantages of the VPT are discussed and the conclusion is made. Although there are some difficulties in modeling and the combination between dynamics model and fluid model, the VPT of axial piston pump is more practical and has a great potential in simulation on hydraulic components.
Virtual prototype Axial piston pump Dynamics
Zhang Bin Xu Bing Xia Chunlin Yang Huayong
State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, 310027, Zhejiang University City College, Hangzhou, 310027, China
国际会议
北戴河
英文
110-115
2007-06-06（万方平台首次上网日期，不代表论文的发表时间）