高速精密轧辊磨床动静压轴承的流固耦合分析
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摘要
通过Gambit软件对高速精密轧辊磨床主轴系统的液体动静压轴承润滑油膜进行网格划分,利用FLUENT软件进行油膜应力场分析。结果表明:该轴承的最大油膜应力出现在过油槽和进油口,其余部位油膜越薄,应力越大。采用流固耦合分析方法,在Workbench中将FLUENT中的油膜应力数据映射到轴瓦内表面,对动静压轴承装配体进行结构静力学分析,结果表明该轴承能满足工作要求。
The mesh generation for lubricating oil film of hybrid bearings for spindle system of high speed precision roll grinder is carried out by using Gambit, and the stress field of oil film is analyzed by using FLUENT. The results show that the maximum oil film stress of the bearings is located at oil groove and oil inlet. The rest parts covered by thinner oil film have larger stress. The fluid-solid coupling analysis method is used, and the oil film stress data in Fluent is mapped to inner surface of bearing bush in Workbench. The structural statics analysis is carried out for assembly of hybrid bearings, and the results show that the operating requirements for the bearings are met.
The mesh generation for lubricating oil film of hybrid bearings for spindle system of high speed precision roll grinder is carried out by using Gambit, and the stress field of oil film is analyzed by using FLUENT. The results show that the maximum oil film stress of the bearings is located at oil groove and oil inlet. The rest parts covered by thinner oil film have larger stress. The fluid-solid coupling analysis method is used, and the oil film stress data in Fluent is mapped to inner surface of bearing bush in Workbench. The structural statics analysis is carried out for assembly of hybrid bearings, and the results show that the operating requirements for the bearings are met.
引文
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[13] 代元军,任常在,徐立军,等.基于Gambit的S系列新翼型风力机建模[J].机械制造,2014,52(2):30-32.
[14] 涂林,李多民,段滋华.基于fluent的动压径向轴承油膜力场模拟研究[J].润滑与密封,2011,36(4):82-86.
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[2] 刘文志,蔡光起,宋贵亮,等.用于超高速磨削主轴系统的液体动静压混合轴承的研制[J].机械制造,2001,39(1):19-21.
[3] GUO L,LI B.Study on the optimization design of the main shaft static and dynamic bearing of ultra-high speed grinding machine[J].Journal of Hunan University of Arts and Sciences:Natural Science Edition,2006,18(3):53-55.
[4] GUO Z,HIRANO T,KINK R G.Application of CFD analysis for rotating machinery[J].ASME Journal of Engineering for Gas Turbines and Power,2005,127:445-451.
[5] SOOKJONG L.Heat transfer and fluid flow[M].Boston:General Electric Company,1980.
[6] 高庆水,杨建刚.基于CFD方法的液体动压滑动轴承动特性研究[J].润滑与密封,2008,33(9):65-67.
[7] 于天彪,王学智,关鹏,等.基于FLUENT的液体动静压轴承的动态特性分析[J].润滑与密封,2012,37(6):1-5.
[8] 涂林,李多民,段滋华.基于Fluent的动压径向轴承油膜力场模拟研究[J].润滑与密封,2011,36(4):82-86.
[9] 石云霞,杨毅,王亚洲.动压径向滑动轴承流固耦合仿真分析[J].化工设备与管道,2014,51(6):43-46.
[10] 闫圣达.动静压轴承流固特性分析及试验台搭建[D].武汉:华中科技大学,2016.
[11] 时志能,屈波,刘定伟,等.计入流固耦合作用的动压径向滑动轴承静特性分析[J].南水北调与水利科技,2014,12(5):41-44.
[12] 令狐克均,吴怀超,孟祥杰,等.可调式高速轧辊磨床液体滑动轴承的结构有限元分析[J].机床与液压,2015,43(11):130-132.
[13] 代元军,任常在,徐立军,等.基于Gambit的S系列新翼型风力机建模[J].机械制造,2014,52(2):30-32.
[14] 涂林,李多民,段滋华.基于fluent的动压径向轴承油膜力场模拟研究[J].润滑与密封,2011,36(4):82-86.
[15] 李鹏飞.精通CFD工程仿真与案例实战[M].北京:人民邮电出版社,2011.
[16] 江帆.FLUENT高级应用与实例分析[M].北京:清华大学出版社,2009:161-195.
[17] 温正.FLUENT流体计算应用教程[M].北京:清华大学出版社,2008:205-249.
[18] HUANG S F,GUO H,ZHANG S L,et al.Based on FLUENT radial sliding bearing oil film pressure simulation[J].Mechanical Design and Manufacturing,2012(10):248-250.
[19] 刘江.ANSYS 14.5 Workbench机械仿真实例详解[M].北京:机械工业出版社,2015.
[20] 宋学官,蔡林,张华.ANSYS流固耦合分析与工程实例[M].北京:中国水利水电出版社,2012.