摘要
为了研发高性能的海水径向柱塞泵,建立了轴配流副的三维模型,对配流副的水力学特性进行研究,分析了液动力矩的产生机理,进一步建立配流轴液动力矩的物理模型,运用MATLAB软件模拟仿真液动力矩的变化规律。搭建试验台架,并采用开通流孔的方式,减小液压侧向力对试验结果的影响,在海水介质条件下,测试了配流轴的液动力矩随转速和配流窗口压差的变化,验证了配流副的液动力矩模型的准确性。结果表明,配流副转速较低时,所受液动力矩的波动较大,转速较高时,所受液动力矩较为平稳;全平衡结构配流轴所受液动力矩不随转角变化,只与配流轴转速和配流窗口的压差有关。
In order to develop a high performance seawater radial plunger pump,we study the hydrodynamic characteristics of distribution pair and analyze the mechanism of hydrodynamic moment by establishing a three dimensional model of flow distribution pairs,and further establish the hydrodynamic moments physical model of distribution shaft and simulate the variation law of hydrodynamic moment by using the software MATLAB.A test bench is built,and we can make the effect of hydraulic lateral force on the test results reduce by opening a flow channel.In the conditions of different rotate speeds and distribution port pressures,the change of the hydrodynamic moment of flow distribution pairs is measured,and the accuracy of the hydraulic torque model of the pairs is verified.The results show that the fluid dynamic torque is more volatile when the rotational speed is lower;accordingly,the fluid dynamic torque is relatively stable when the rotational speed is higher;the fluid dynamic moment of the full balance distribution shaft does not vary with the angle of rotation;however,it is only related to the shaft rotating speed and the differential pressure of the distribution window.
作者
方继根
吴进军
王西峰
张天鹭
杨友胜
吕晋
FANG Jigen;WU Jinjun;WANG Xifeng;ZHANG Tianlu;YANG Yousheng;LV Jin(China Academy of Machinery Science and Technology, Beijing100044;China University of Mining & Technology, Beijing100083;;Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao, Shandong266100)
出处
《液压与气动》
北大核心
2018年第1期23-29,共7页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(51475197
51275495)
山东省重点研发计划项目(2017GGX30106)
中央高校基本科研业务费专项(201562009)
关键词
径向柱塞泵
轴配流副
液动力矩
液压侧向力
radial piston pump
flow distribution pairs
hydraulic torque
hydraulic lateral force
