CAJ | 학술논문

介绍了采用计算流体动力学分析轴向柱塞泵和马达内部流动及空化的基本原理,以某型轴向柱塞泵和某型静压传动装置的轴向柱塞马达为例进行了数值模拟.对于某型轴向柱塞泵,计算结果表明第二种配流盘可在一定程度上减小压力冲击,但两种配流盘抑制空化的效果接近;对于某型静压传动装置的轴向柱塞马达,计算结果表明气蚀破坏主要发生配流盘低压区腰型槽靠近上死点的内壁面,需要增加减振结构.对气蚀破坏的计算结果和试验结果进行了对比.
개소료채용계산류체동역학분석축향주새빙화마체내부류동급공화적기본원리,이모형축향주새빙화모형정압전동장치적축향주새마체위례진행료수치모의.대우모형축향주새빙,계산결과표명제이충배류반가재일정정도상감소압력충격,단량충배류반억제공화적효과접근;대우모형정압전동장치적축향주새마체,계산결과표명기식파배주요발생배류반저압구요형조고근상사점적내벽면,수요증가감진결구.대기식파배적계산결과화시험결과진행료대비.
The CFD analysis methods of inner flow and cavitation for axial piston machines were introduced. The cavatating flow of an axi-al piston pump and an axial piston motor in a hydrostatic transmission were simulated by this method. The simulation result of the pump showed that the second portplate can reduce the pressure shocks but it can not reduce cavitation in the flowing zone. The simulation result of the motor showed that the cavitation damage occurred at the portplate's outlet inner wall near to the top dead center, so damping groove should be added at this point. The simulation results of the cavitation damage were compared with the experimental results.