摘要
为了研究滑油泵转子设计参数对泵的性能影响,采用数值仿真软件Pumplinx对某型航空发动机滑油泵供油级进行了三维数值模拟,具体研究了内啮合摆线滑油泵转子结构设计参数对其流量及流量脉动率的影响。结果表明,当泵的体积及边界条件一定时:随着转速增加,流量脉动幅值与流量脉动率均随之增大;偏心距e减小,流量脉动率减小;创成系数k的增大能够使泵的排量增大;弧径系数h的减小会使排量增大;弧径系数h及创成系数k单独的变化对流量脉动率无直接影响,需结合起来判断转子是否过尖,过尖的转子会使流量脉动率增大。
In order to study the influence of design parameters of the oil pump rotor on the performance of the pump,a three-dimensional numerical simulation is conducted on the oil supply stage of an aircraft engine oil pump using the numerical simulation software Pumplinx.The effects of structural design parameters of the internal cycloidal oil pump rotor on its flow rate and flow pulsation rate are specifically studied.When the volume and boundary conditions of the pump are constant,the results indicate that the amplitude and rate of flow pulsation both increase as the speed increases;the flow pulsation rate decreases as the eccentric distance e decreases;the capacity of the pump increases whether the generation coefficient k increases or the arc radius coefficient h decreases;the change of the arc radius coefficient h and generation coefficient k respectively has no direct influence on the flow pulsation rate.The two coefficients need to be combined to determine whether the rotor is too sharp,and sharp rotor will increase the flow pulsation rate.
作者
王晓宇
杨振军
张岭
李文
WANG Xiao-yu;YANG Zhen-jun;ZHANG Ling;LI Wen(Military Representative Office in Xinxiang District,Air Equipment Department,Xinxiang 453000,China;Research and Development Institute,Avic Xinxiang Aviation Industry(Group)Co.,Ltd.,Xinxiang 453000,China)
出处
《液压气动与密封》
2024年第11期79-85,共7页
Hydraulics Pneumatics & Seals
关键词
内啮合摆线齿轮泵
流量脉动率
弧径系数
创成系数
偏心距
internal cycloidal gear pump
flow pulsation rate
arc radius coefficient
generation coefficient
eccentric distance
