流固耦合影响下内啮合齿轮泵功率损失研究  

Power Losses of Internal Gear Pump Under the Influence of Fluid-Structure Interaction

作　　者：邓斌[1] 唐敬来 王国志[1] 于兰英[1] 

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机械设计与制造》2018年第2期29-31,35,共4页Machinery Design & Manufacture

基　　金：国家863计划项目(2012AA091104)

摘　　要：针对理论计算难以获得精确的内啮合齿轮泵功率损失问题,利用Fluent和Adams分别计算了内啮合齿轮泵流场压力特性和压力载荷作用下内啮合齿轮泵动力学性能,通过实时数据传递建立内啮合齿轮泵单向流固耦合模型,得到耦合作用下内啮合齿轮泵的摩擦功率损失以及不同油液温度、工作压力及转速下功率损失的特性曲线。结果表明:功率损失随油液温度、工作压力和转速的增大而增大,油液温度和转速对其影响较大,工作压力的影响较小;考虑流固耦合作用计算得到的功率损失更接近于试验数据,比未考虑流固耦合作用时的情况更加精确。It is difficult tocalculate thepower losses of internal gear pump exactly by means of theoretical calculation, thus the internal gear pump pressure distribution characteristics of flow field and dynamic performance of internal gear pump under pressure load were calculated byFluent and Adams respectively, one-way fluid-structure interaction （FSI） model of internal gear pump was established by passing data in time. The power losses of the internal gear pump were calculated, and the characteristic curves of the power losses under different oil temperatures, working pressures and rotating speeds were obtained. The results indicate that the power losses increase along with the oil temperatures, working pressures and rotating speeds. The.oil temperature and rotating speed has great influence on them, and the influence of the working pressure is small. The power losses considering FSI are much closer to the experimental data, and moreprecise than the condition without considering FSI.

关 键 词：内啮合齿轮泵 流固耦合 功率损失 数值计算 

分 类 号：TH16[机械工程—机械制造及自动化] TH137.5