可倾瓦推力轴承润滑油膜静动特性计算的嵌套式二分法与应用
|
摘要
在舰船推进轴系纵向振动特性分析中,可倾瓦推力轴承润滑油膜的动特性是轴系力传递和振动响应分析的重要环节。该文建立了润滑油膜特性分析的理论模型,以有限差分法为基础,提出了嵌套式二分法,数值求解了油膜静动特性,并分别得出了在轴系载荷与转速独立和非独立的情况下,油膜动特性随转速的关系。解释了船舶推进轴系振动实验中,不同转速情况下,相应的频响函数幅值大小的变化规律。
In the longitudinal vibration characteristic analysis of ship propulsion shafting, the dynamic characteristic of the oil film between the thrust collar and tilting pads is one of significant links for shafting force transmission and the vibration response analysis. The theoretical model of lubricating oil film was established, and based on the finite difference method, nested dichotomy method was brought forward here to numerically solve the oil film dynamic characteristics, and it is concluded how the oil film dynamic characteristic changes with rotating speed, when the shaft load and rotating speed are independent and non-independent respectively. In vibratory test of ship propulsion shafting, the change rule of frequency-response function amplitude at different rotating speed was explained.
In the longitudinal vibration characteristic analysis of ship propulsion shafting, the dynamic characteristic of the oil film between the thrust collar and tilting pads is one of significant links for shafting force transmission and the vibration response analysis. The theoretical model of lubricating oil film was established, and based on the finite difference method, nested dichotomy method was brought forward here to numerically solve the oil film dynamic characteristics, and it is concluded how the oil film dynamic characteristic changes with rotating speed, when the shaft load and rotating speed are independent and non-independent respectively. In vibratory test of ship propulsion shafting, the change rule of frequency-response function amplitude at different rotating speed was explained.
引文
[1]Schwanecke H.Investigations on the hydrodynamic stiffness and damping of thrust bearing in ship[J].Transactions of the Institute of Marine Engineers,1979,91:68-77.
[2]Vassilopoulos M L.Methods for computing stiffness and damping properties of main propulsion thrust bearing[J].International Shipbuilding Progress,1982,329(29):13-31.
[3]Purday H F P.Streamline flow:An introduction to the mechanics of viscous flow,film lubrication,the flow of heat by conduction,and heat transfer by convection[J].Dover Publications Inc.New York N.Y,1949.
[4]Srikanth D V,Chaturvedi K K,Reddy A C K.Modelling of large tilting pad thrust bearing stiffness and damping coefficients[J].Tribology in Industry,2009,31(3&4).
[5]Almqvist T,Glavatskikh S B,Larsson R.THD analysis of tilting pad thrust bearings-comparison between theory and experiments[J].Journal of Tribology,2015,122(2):412-417.
[6]Zhang G,Zhao Y,Li T,et al.Propeller excitation of longitudinal vibration characteristics of marine propulsion shafting system[J].Shock and Vibration,2014,2014.
[7]温诗铸,黄平.摩擦学原理[M].北京:清华大学出版社,2002.Wen Shizhu,Huang Ping.Tribological principle[M].Beijing:Tsinghua University Press,2002.
[8]温诗铸,杨沛然.弹性流体动力润滑[J].清华大学学报:自然科学版,1993(5):114.Wen Shizhu,Yang Peiran.Elastohydrodynamic lubrication[J].Journal of Tsinghua University:Natural Science,1993(5):114.
[9]李忠,袁小阳,朱均.可倾瓦推力轴承的线性和非线性动特性研究[J].中国机械工程,2000(5):88-90+7.Li Zhong,Yuan Xiaoyan,Zhu Jun.A study of linear and non-linear dynamic performance for tilting-pad thrust bearing[J].China Mechanical Engineering,2000(5):88-90+7.
[10]黄滨.推力轴承三维热弹流润滑性能及其振动噪声特性研究[D].杭州:浙江大学,2013.Huang Bin.Study on three dimensional TEHD,vibration and noise characteristics of thrust bearings[D].Hangzhou:Zhejiang University,2013.
[11]李栋梁,谌勇,张志谊,华宏星.推力轴承油膜刚度对轴系-艇体结构耦合振动的影响研究[J].噪声与振动控制,2011(6):81-85.Li Dongliang,Chen Yong,Zhang Zhiyi,Hua Hongxing.Influence of thrust bearing’s oil film on the coupled vibration of the shafting-ship hull structure[J].Noise and Vibration Control,2011(6):81-85.
[12]邱家俊,段文会.推力轴承油膜刚度和阻尼的解析解[J].大电机技术,2002(2):5-8.Qiu Jiajun,Duan Wenhui.The analytical solution to oil film stiffness and damping of thrust bearing[J].Large Electric Machine and Hydraulic Turbine,2002(2):5-8.
[13]黄平.润滑数值计算方法[M].北京:高等教育出版社,2012.Huang Ping.Lubrication numerical calculation method[M].Beijing:Higher Education Press,2012.
[14]盛振邦,刘应中.船舶原理(下册)[M].上海:上海交通大学出版社,2004.Sheng Zhenbang,Liu Yingzhong.Ship theory(the second volume)[M].Shanghai:Shanghai Jiao Tong University Press,2004.
[2]Vassilopoulos M L.Methods for computing stiffness and damping properties of main propulsion thrust bearing[J].International Shipbuilding Progress,1982,329(29):13-31.
[3]Purday H F P.Streamline flow:An introduction to the mechanics of viscous flow,film lubrication,the flow of heat by conduction,and heat transfer by convection[J].Dover Publications Inc.New York N.Y,1949.
[4]Srikanth D V,Chaturvedi K K,Reddy A C K.Modelling of large tilting pad thrust bearing stiffness and damping coefficients[J].Tribology in Industry,2009,31(3&4).
[5]Almqvist T,Glavatskikh S B,Larsson R.THD analysis of tilting pad thrust bearings-comparison between theory and experiments[J].Journal of Tribology,2015,122(2):412-417.
[6]Zhang G,Zhao Y,Li T,et al.Propeller excitation of longitudinal vibration characteristics of marine propulsion shafting system[J].Shock and Vibration,2014,2014.
[7]温诗铸,黄平.摩擦学原理[M].北京:清华大学出版社,2002.Wen Shizhu,Huang Ping.Tribological principle[M].Beijing:Tsinghua University Press,2002.
[8]温诗铸,杨沛然.弹性流体动力润滑[J].清华大学学报:自然科学版,1993(5):114.Wen Shizhu,Yang Peiran.Elastohydrodynamic lubrication[J].Journal of Tsinghua University:Natural Science,1993(5):114.
[9]李忠,袁小阳,朱均.可倾瓦推力轴承的线性和非线性动特性研究[J].中国机械工程,2000(5):88-90+7.Li Zhong,Yuan Xiaoyan,Zhu Jun.A study of linear and non-linear dynamic performance for tilting-pad thrust bearing[J].China Mechanical Engineering,2000(5):88-90+7.
[10]黄滨.推力轴承三维热弹流润滑性能及其振动噪声特性研究[D].杭州:浙江大学,2013.Huang Bin.Study on three dimensional TEHD,vibration and noise characteristics of thrust bearings[D].Hangzhou:Zhejiang University,2013.
[11]李栋梁,谌勇,张志谊,华宏星.推力轴承油膜刚度对轴系-艇体结构耦合振动的影响研究[J].噪声与振动控制,2011(6):81-85.Li Dongliang,Chen Yong,Zhang Zhiyi,Hua Hongxing.Influence of thrust bearing’s oil film on the coupled vibration of the shafting-ship hull structure[J].Noise and Vibration Control,2011(6):81-85.
[12]邱家俊,段文会.推力轴承油膜刚度和阻尼的解析解[J].大电机技术,2002(2):5-8.Qiu Jiajun,Duan Wenhui.The analytical solution to oil film stiffness and damping of thrust bearing[J].Large Electric Machine and Hydraulic Turbine,2002(2):5-8.
[13]黄平.润滑数值计算方法[M].北京:高等教育出版社,2012.Huang Ping.Lubrication numerical calculation method[M].Beijing:Higher Education Press,2012.
[14]盛振邦,刘应中.船舶原理(下册)[M].上海:上海交通大学出版社,2004.Sheng Zhenbang,Liu Yingzhong.Ship theory(the second volume)[M].Shanghai:Shanghai Jiao Tong University Press,2004.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |