Computer Aided Optimization of Bearing and Sealing Gaps in Hydrostatic Machines—The Simulation Tool Caspar
Computer Aided Optimization of Bearing and Sealing Gaps in Hydrostatic Machines—The Simulation Tool Caspar
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DOI：
10.1080/14399776.2002.10781124
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发表时间：
2002-01
影响因子：
0.8
通讯作者：
U. Wieczorek;M. Ivantysynova
中科院分区：
文献类型：
--
作者：
U. Wieczorek;M. Ivantysynova
本文介绍了斜盘式轴向柱塞泵和马达的计算机仿真工具CASPAR。通过对斜盘式轴向柱塞机械中润滑间隙的流动模拟，可以确定所考虑的间隙中的压力场、速度场和温度场。这允许计算由于粘性摩擦和间隙流动而在机器中产生的主要损失。各个间隙以复杂的方式相互连接。差距流量的计算需要确定所有考虑的间隙的瞬时间隙高度。这通过求解旋转组的所有可移动部件的运动方程来实现。为了确定与压力有关的外力，同时计算位移室中的瞬时压力。该程序还计算了泵送和电动模式下旋转斜盘电机的瞬时入口和出口流量以及内部容积损失。
Abstract The simulation tool CASPAR (Calculation of swash plate type axial piston pump and motor) is presented in this paper. Based on the simulation of the flow through the lubricating gaps in swash plate type axial piston machines the pressure, velocity and temperature fields in the considered gaps can be determined. This allows the calculation of the main losses generated in the machine due to viscous friction and gap flow. The individual gaps are connected in a complex way to each other. The calculation of the gap flow requires the determination of the instantaneous gap heights for all considered gaps. This is realized by solving the motion equation for all moveable parts of the rotating group. For determination of pressure dependent external forces the instantaneous pressure in the displacement chamber is calculated simultaneously. The program further calculates the instantaneous inlet and outlet flow of the swash plate machine for pumping and motoring mode as well as internal volumetric losses.