抄録
The virtual prototype of axial piston pump is discussed in detailed through the application in investigation of piston/cylinder pair. Three sub-models are introduced firstly. The data is transferred between three sub-models through software interface. The liquid-solid coupling and rigid-flexible coupling of piston/cylinder pair model is achieved through the co-simulation model which is called virtual prototype. Then several related test rigs are mentioned. And the comparisons of simulation results and experimental results demonstrate that the virtual prototype of axial piston pump has a great potential in axial piston pump design. At last, the influence of load pressure, inclined angle of swash plate and clearance between piston and bushing on properties of piston/cylinder pair is analyzed. The simulation results indicate that the design of piston/cylinder pair is the key factor in determining the limit pressure and maximum swash plate angle, and reduction of clearance between piston and cylinder contributes to reduction of leakage and friction force of piston/cylinder pair, and improvement of the carrying ability of the oil film.
