球面配流副油膜动态耦合建模及求解方法  

Modeling and solution method of oil film dynamic coupling for spherical port pair

作　　者：任东杰 许顺海 王少萍[1] 刘小平 白林迎 REN Dongjie;XU Shunhai;WANG Shaoping;LIU Xiaoping;BAI Linying(School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China;China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450016,China)

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191 [2]中铁工程装备集团有限公司,郑州450016

出　　处：《北京航空航天大学学报》2023年第10期2771-2779,共9页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51875014,51875015,51620105010)。

摘　　要：柱塞泵摩擦副多场耦合建模及求解是柱塞泵失效机理研究及可靠性提升的基础,针对双斜式柱塞泵球面配流副多场耦合模型求解难的问题,提出油膜厚度场-压力场-温度场动态耦合模型及求解方法。在球面配流副受力分析的基础上结合雷诺方程和能量方程建立球面配流副油膜厚度场-压力场-温度场耦合模型;基于有限差分法和牛顿迭代法求解动态耦合模型,温度场、压力场、厚度场间相互耦合变化;通过仿真求解,与现有模型进行对比,结果相近且更符合实际,验证了所提模型及求解方法的有效性。The multi-field coupling modeling and solution of the friction pair of the piston pump is the basis for the study of the failure mechanism of the piston pump and the improvement of its reliability.To resolve the difficulty,in solving the multi-field coupling model of the spherical port pair of the double-oblique-type axial piston pump,a dynamic coupling model of oil film thickness field-pressure field-temperature field and its solution method are proposed.First,based on the force analysis of the spherical port pair,the Reynolds equation and the energy equation are combined to establish a coupling model of the thickness field-pressure field-temperature field of the spherical port pair.Secondly,the dynamic coupling model is solved based on the finite difference method.Finally,the simulation is compared with the existing model to verify the effectiveness of the proposed model and solution method.

关 键 词：双斜式柱塞泵 球面配流副 厚度场-压力场-温度场耦合模型 有限差分法 牛顿迭代法 

分 类 号：TH137.51[机械工程—机械制造及自动化]