计入温度场的万向节轴孔与滑动轴承数值分析
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摘要
针对塔架软刚臂单点系泊系统所采用的万向节轴孔与滑动轴承之间的接触应力进行有限元分析。万向节的工作环境温度为(-40～80)℃,接触面之间的接触应力与工作环境温度、外部载荷及轴承厚度等参数有关。该文对万向节的接触应力在不同工作温度、外部载荷、不同的滑动轴承厚度下进行了数值分析。在仿真模拟分析中采用子模型技术以节省计算时间,摩擦力采用经典的库仑摩擦模型。结果表明:万向节的接触应力与工作环境温度、外部载荷及滑动轴承厚度等参数存在非线性关系。在过盈量相同的情况下,随着工作环境温度、外部载荷及滑动轴承厚度的增加万向节的接触应力增大。
Finite element analysis of the contact pressure between axial hole and sliding bearing of the cardan joint in the Tower Soft Yoke Single Point Mooring System. The working temperature of the cardan joint is(-40～80)℃.The contact pressure of Cardan joint is related to the working temperature,loding and the thickness of the sliding bearing. In this paper,the numerical simulation of the contact pressure of Cardan joint is carried out under different working temperature,loading and the thickness of the sliding bearing. In the simulation analysis,Sub-modeling is applied to save computing time,and the frictional force is modeled by the classics Coulomb friction model. The results show that the contact pressure of the Cardan joint has nonlinear relationship with the different temperature,loading and the thickness of the sliding bearing. Under the condition of the same interference fit,the contact pressure of the Cardan joint increase with the increase of the working environment temperature,loading and the thickness of the sliding bearing.
Finite element analysis of the contact pressure between axial hole and sliding bearing of the cardan joint in the Tower Soft Yoke Single Point Mooring System. The working temperature of the cardan joint is(-40～80)℃.The contact pressure of Cardan joint is related to the working temperature,loding and the thickness of the sliding bearing. In this paper,the numerical simulation of the contact pressure of Cardan joint is carried out under different working temperature,loading and the thickness of the sliding bearing. In the simulation analysis,Sub-modeling is applied to save computing time,and the frictional force is modeled by the classics Coulomb friction model. The results show that the contact pressure of the Cardan joint has nonlinear relationship with the different temperature,loading and the thickness of the sliding bearing. Under the condition of the same interference fit,the contact pressure of the Cardan joint increase with the increase of the working environment temperature,loading and the thickness of the sliding bearing.
引文
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[8]贾国海,龚金科,鄂加强.齿轮轴过盈配合对轴肩微动磨损的影响研究[J].湖南大学学报:自然科学版,2013,40(5):31-36.(Jia Guo-hai,Gong Jin-ke,E Jia-qiang.Effect of interference fit on fretting wear of gear shaft shoulder[J].Journal of Hu’nan University:Natural Sciences,2013,40(5):31-36.)
[9]闫明,刘栋,史妍妍.航空发动机主轴滑动轴承内圈配合表面压力及影响因素研究[J].机械设计与制造,2003(6):72-74.(Yan Ming,Liu Dong,Shi Yan-yan.Research on the mating surface pressure of inner ring of aero-engine main-shaft bearing and the influencing factors[J].Machinery Design&Manufacture,2003(6):72-74.)
[10]曾攀,石伟,雷丽萍.工程有限元方法[M].北京:科学出版社,2015.(Zeng Pan,Shi Wei,Lei Li-ping.Engineering Finite Element Method[M].Beijing:Science and Technology Press,2015.)
[2]Baldanzini N.A general formulation for designing interference-fit joints with elastic-plastic components[J].Journal of Mechanical Design,2004,126(4):737-743.
[3]Oswald F B,Zaretsky V,Poplawski J V.Interference-fit life factors for roller bearings[J].Tribology Transactions,2009,52(4):415-426.
[4]Croccol D,de Agostinis M,Vincenzi N.Static and dynamic strength evaluation of interference fit and adhesively bondedcy lindrical joints[J].International Journal of Adhesion&Adhesives,2010,30(5):359-366.
[5]韩传军,张杰.空心轴过盈配合的微动接触分析[J].华中科技大学学报:自然科学版,2013,41(5):21-27.(Han Chuan-Jun,Zhang Jie.Analyzing fretting contact of hollow shafts with interference fit[J].Huazhong Univ.of Sci.&Tech.:Natural Science Edition,2013,41(5):21-27.)
[6]曹宏瑞,李兵,陈雪峰.高速主轴离心膨胀及对滑动轴承动态特性的影响[J].机械工程学报,2012,48(19):59-64.(Cao Hong-rui,Li Bing,Chen Xue-feng.Centrifugal expansion of highspeed spindle and its influences on bearing dynamic characteristics[J].Journal of Mechanical Engineering,2012,48(19):59-64.)
[7]曾飞,陈光雄,周仲荣.基于ANSYS的轮对过盈配合微动分析[J].机械工程学报,2011,47(5):121-125.(Zeng Fei,Chen Guang-xiong,Zhou Zhong-rong.Fretting analysis of interference fitting of wheel-set based on ANSYS[J].Journal of Mechanical Engineering,2011,47(5):121-125.)
[8]贾国海,龚金科,鄂加强.齿轮轴过盈配合对轴肩微动磨损的影响研究[J].湖南大学学报:自然科学版,2013,40(5):31-36.(Jia Guo-hai,Gong Jin-ke,E Jia-qiang.Effect of interference fit on fretting wear of gear shaft shoulder[J].Journal of Hu’nan University:Natural Sciences,2013,40(5):31-36.)
[9]闫明,刘栋,史妍妍.航空发动机主轴滑动轴承内圈配合表面压力及影响因素研究[J].机械设计与制造,2003(6):72-74.(Yan Ming,Liu Dong,Shi Yan-yan.Research on the mating surface pressure of inner ring of aero-engine main-shaft bearing and the influencing factors[J].Machinery Design&Manufacture,2003(6):72-74.)
[10]曾攀,石伟,雷丽萍.工程有限元方法[M].北京:科学出版社,2015.(Zeng Pan,Shi Wei,Lei Li-ping.Engineering Finite Element Method[M].Beijing:Science and Technology Press,2015.)