Research Of Virtual Prototype Simulation Technology For Axial Piston Pump

With the development of Fluid Power transmission and control techniques, the high-performance piston pump is demanded. In order to research and design high-performance piston pump, the methods only using the traditional physical experiments take much time and can not change parameters and conditions of piston pump freely; even some are not be realized in current condition. Because of the elastic deformations of some components in piston pump are nonlinear inertia coupling, in addition a lot of nonlinear factors of hydraulic systems, so the results of analysis of piston pump by common theory are far away with the real status. The development of Virtual Pprototype Technology provides the possibility for simulation research of the nonlinear complex system precisely.Virtual Pprototype Ttechnology is a new engineering technology. The user and designer can easily make the complex mechanic system modeling and simulate its movement and dynamics characteristic based on computer in real condition as well as visualizing the 3D image. Integrating modeling tools of many fields and simulation methods, the core of the technology is system's movement and dynamics modeling, supplying other relevant modeling. Then, the virtual prototype system of the researching objects is built. In view of the model proposed according to the essential element of the object, virtual prototype's dynamics characteristic is nearly similar to the physics prototype's. So the simulation evaluation of the virtual prototype can replace the evaluation of the design characteristic of the physics prototype.Using the integration feature of Virtual Prototype Technology, this project applies it to the field of fluid power transmission and control. The virtual prototype of HAWE V30 piston pump has been established by dynamic analysis and simulation in ADAMS which is combined with three-dimension model completed in Pro/e and flexible processing in ANSYS and hydraulic modeling in AMESim.The study based on the simulation of Virtual Prototype Technology obviously rise the efficiency while reducing the expense and time of experiment. It is playing an important role in the research into the characteristics of piston pump.Firstly, the application of Virtual Prototype Technology to piston pump shows the fluid and dynamics characteristic of the inner of piston pump in detail. It makes us well known of the inner characteristic of piston pump and provides the much more reliable principle for the design of piston pump.Secondly, the difficulty of the integration and interaction of axial piston pump dyanamics and hydraulic modeling is overcomed by the combination simulation of ADAMS and AMESim. The dynamics characteristic of components and the fluid characteristic of nodes are accurately predicted and simulated.The last, the combination of the dyanamics simulation and the finite element analysis in ADAMS and ANSYS can solve the problem of the multi body system rigid-flexible coupled analysis and simulation of axial piston pump.