首页> 外文期刊>Journal of Fluids Engineering: Transactions of the ASME >Lumped Parameter and Three-Dimensional Computational Fluid Dynamics Simulation of a Variable Displacement Vane Pump for Engine Lubrication
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Lumped Parameter and Three-Dimensional Computational Fluid Dynamics Simulation of a Variable Displacement Vane Pump for Engine Lubrication

机译:用于发动机润滑的可变排量叶片泵的集总参数和三维计算流体动力学模拟

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The paper describes the modeling and the experimental tests of a variable displacement vane pump for engine lubrication. The approach used for the simulation has involved three-dimensional (3D) commercial tools for tuning a zero-dimensional (0D) customized model implemented in the LMS Amesim VR environment. Different leakage paths are considered and the axial clearances are variable to take into account the deformation of the pump cover, calculated through a finite element analysis with ANSYS. The vane tip clearances are calculated as function of the dynamic equilibrium equation of the vanes. The displacement control takes into account the internal forces on the stator due to the pressure in all variable chambers and to the contact force exerted by the vanes. The discharge coefficients in the resistive components have been tuned by means of a complete 3D transient model of the pump built with PumpLinx VR. The tuned 0D model has been proved to be reliable for the determination of the steady-state flow-speed and flow-pressure curves, with a correct estimation of the internal leakages and of the pressure imposed by the displacement control. The pump has been also tested using a simplified circuit, and a fair agreement has been found in the evaluation of the delivery pressure ripple.
机译:本文描述了用于发动机润滑的可变排量叶片泵的建模和实验试验。用于模拟的方法涉及用于调整在LMS Amesim VR环境中实现的零维(0d)定制模型的三维(3D)商业工具。考虑不同的泄漏路径,并且轴向间隙是可变的,以考虑泵盖的变形,通过用ANSYS有限元分析计算。叶片尖端间隙计算为叶片的动态平衡方程的功能。位移控制考虑了由于所有可变腔室中的压力和由叶片施加的接触力而导致定子上的内部力。通过使用Pumplinx VR构建的泵的完整3D瞬态模型来调整电阻组件中的放电系数。已经证明,调谐的0d模型可靠地确定稳态流量和流量压力曲线,正确估计内部泄漏和由位移控制施加的压力。还使用简化电路测试泵,并在输送压力波纹的评估中找到了公平的协议。

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