油液特性对柱塞泵流量脉动影响的仿真分析

发布时间：2018-03-25 12:11

本文选题：轴向柱塞泵　切入点：流量脉动　出处：《中国机械工程》2017年11期

【摘要】：为研究油液特性对轴向柱塞泵流量脉动的作用规律,对比分析了油液的压缩性、黏性、含气量和流动状态与柱塞泵流量脉动之间的关系,运用FLUENT流场仿真软件对轴向柱塞泵的运动特性进行模拟。数值仿真结果表明:压缩性对泵源流量脉动的影响最大,油液黏性的影响次之,含气量的影响较小,流动状态的影响最小,以上因素的影响程度占油液特性影响的比例分别为86.8%、9.45%、3.59%、0.16%;油液的黏性对泵容积效率的影响最大,压缩性的影响次之,含气量的影响较小,流动状态的影响最小。模型的准确性得到了实验验证,为开展柱塞泵动力学建模以及机电液系统全局耦合性能仿真分析提供了理论依据。
[Abstract]:In order to study the effect of oil characteristics on flow pulsation of axial piston pump, the relationship between compressibility, viscosity, gas content, flow state and flow pulsation of piston pump is compared and analyzed. The FLUENT flow field simulation software is used to simulate the motion characteristics of axial piston pump. The numerical simulation results show that the compressibility has the greatest influence on the flow pulsation of the pump source, the second is the influence of oil viscosity, and the effect of gas content is small. The influence of the flow state is the least, the influence degree of the above factors is 86.8 and the proportion of the effect of the above factors to the characteristic of the oil is respectively 9.453.590.160.The viscosity of the oil has the greatest influence on the volume efficiency of the pump, the influence of compressibility is the second, and the effect of the gas content is small. The accuracy of the model is verified by experiments, which provides a theoretical basis for the dynamic modeling of piston pumps and the simulation analysis of the global coupling performance of electromechanical and hydraulic systems.
【作者单位】：陕西交通职业技术学院汽车工程学院;西安建筑科技大学机械电子技术研究所;
【基金】：国家自然科学基金资助项目(51675399,51275375)
【分类号】：TH322

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