基于多松弛时间格子玻尔兹曼方法的矩形腔静压转台流动及沉淀物影响分析  

Analysis of Flow and Sediment Effects of Rectangular Chamber Hydrostatic Turntable Based on Multiple Relaxation Time Lattice Boltzmann Method

作　　者：张红霞 林晓川 HANG Hongxia;LIN Xiaochuan(School of Mechanical and Electrical Engineering,Xuyi Technician College,Huai'an,Jiangsu 211724;School of Marine Equipment and Mechanical Engineering,Jimei University,Xiamen,Fujian 361021)

机构地区：[1]盱眙技师学院机电工程学院,江苏淮安211724 [2]集美大学海洋装备与机械工程学院,福建厦门361021

出　　处：《液压与气动》2024年第10期128-135,共8页Chinese Hydraulics & Pneumatics

基　　金：福建省科技计划项目(2024H6012);福建省中青年教师教育科研项目(JAT231046)。

摘　　要：针对矩形油腔的静压转台,利用多松弛时间参数的格子玻尔兹曼方法对油液在油腔内的流动进行了分析,讨论了进油口位置、沉淀物位置及沉淀物大小对液压油的流动及流速分布的影响。结果表明:进油口位置偏离中心将引起较大的速度起伏波动,而由于杂质或氧化物形成的沉淀物,干扰了液压油的正常流动,当沉淀物出现在中心与边缘的中间位置时,对形成的主涡以及速度分布具有显著影响。沉淀物的大小阻碍了液压油的正常流动,当增至一定程度时,左侧的流动被严重削弱,油液的流动主要集中在沉淀物右侧,且沉淀物的出现间接引起了油腔内部的尺寸突变,进一步引起了速度的波动。上述3个参数虽然还影响了承载能力的变化趋势,但是压力分布的差值较小。Aimed at the hydrostatic turntable with rectangular chamber,the multiple relaxation time lattice Boltzmann method is used to analyze the flow of hydraulic oil in a hydrostatic turntable.The effects of the inlet position,sediment position,and sediment size on the flow and velocity distribution of hydraulic oil are discussed.The results show that the deviation of the inlet position from the center position will cause significant velocity fluctuations,while sediment formed by impurities or oxides will interfere with the normal flow of hydraulic oil.When sediment appeared in the middle position between the center and the edge,it will significantly impact the formation of the main vortex and velocity distribution.The size of the sediment the normal flow of hydraulic oil.When it increases to a certain extent,the flow on the left side is severely weakened,and the oil flow is mainly concentrated on the right side of the sediment.The appearance of sediment indirectly causes a sudden change in the chamber size,further causing fluctuations in velocity.Although the above three parameters still affect the trend of changes in bearing capacity,the difference in pressure distribution is relatively small.

关 键 词：静压转台 进油口位置 沉淀物 流动 

分 类 号：TH137[机械工程—机械制造及自动化]