Dynamic Analysis of Journal Bearing-gear System under Swing Movement of the Ship

doi:10.3901/JME.2018.17.226

Abstract

Abstract: Under the swing motion of the ship,dynamic model of the journal bearing-gear system is established. The nonlinearity of the oil-film force and tooth force on drive-side and back-side are considered simultaneously. The equilibrium positions under different input rotation speeds and torques are calculated. Swing-induced system responses are simulated. The influence of the gear box position respect with swing center is examined by presenting displacement response,tooth force and bearing force. The results show that amplitudes of gear vibration and journal bearing force are remarkably enlarged with the increasing of the radius of the ship swing motion,the direction of the oil-film force varies greatly. Under a small backlash,tooth wedging phenomenon is observed and it may happen in a single direction respect with rotation center of the ship body. From the perspective of the safety for the gear and the bearing, this study provides reference for the design of the gear box position.

Key words: gear dynamics, journal bearing, position of gear box, swing motion of the ship

CLC Number:

TH113

LIU Zhenxing, LIU Zhansheng, YU Xiangyu, PANG Xuejia. Dynamic Analysis of Journal Bearing-gear System under Swing Movement of the Ship[J]. Journal of Mechanical Engineering, 2018, 54(17): 226-234.

References

[1] GREGORY R W,HARRIS S L,MUNRO R G. Dynamic behvior of spur gears[J]. Proceeding of the Institution of Mechanical Egnineers,1963(178):1-28.
[2] ÖZGÜVEN H N. A non-linear mathematical model for dynamic analysis of spur gears including shaft and bearing dynamics[J]. Journal of Sound and Vibration,1991,145(2):239-260.
[3] ERITENEL T,PARKER R G. Three-dimensional nonlinear vibration of gear pairs[J]. Journal of Sound and Vibration,2012,331(15):3628-3648.
[4] KAHRAMAN A,SINGH R. Interactions between time-varying mesh stiffness and clearance non-linearities in a geared system[J]. Journal of Sound and Vibration,1991,146(1):135-156.
[5] 李英明,陈卫东,陈奇,等. 齿侧间隙对齿轮副非线性振动特性的影响研究[J]. 机械传动,2013(5):1-5. LI Yingming,CHEN Weidong,CHEN Qi,et al. Research of the influence of gear backlash on gear pair nonlinear vibration characteristic[J]. Journal of Mechanical Transmission,2013(5):1-5.
[6] 任朝晖,谢吉祥,周世华,等. 斜齿轮-转子-轴承弯扭轴耦合振动特性分析[J]. 机械工程学报,2015(15):75-89. REN Zhaohui,XIE Jixiang,ZHOU Shihua,et al. Vibration characteristic analysis of helical gear-rotor-bearing system with coupled lateral-torsional-axial[J]. Journal of Mechanical Engineering,2015(15):75-89.
[7] 崔亚辉,刘占生,叶建槐,等. 内外激励作用下含侧隙的齿轮传动系统的分岔和混沌[J]. 机械工程学报,2010,46(11):129-136. CUI Yahui,LIU Zhansheng,YE Jianhuai,et al. Bifurcation and chaos of gear transmission system with clearance subjected to internal and external excitation[J]. Journal of Mechanical Engineering,2010,46(11):129-136.
[8] HAMAD B,SEIREG A. Simulation of whirl interaction in pinion-gear systems supported on oil film bearings[J]. Journal of Engineering for Power,1980,102(2):508-510.
[9] KISHOR B,GUPTA S K. On dynamic gear tooth loading due to coupled torsional-lateral vibrations in a geared rotor-hydrodynamic bearing system[J]. Journal of Tribology,1989,111(3):418-425.
[10] 刘占生,崔亚辉,叶建槐,等. 非线性油膜力和啮合力作用下齿轮系统的振动特性研究[J]. 中国电机工程学报,2009(23):84-91. LIU Zhansheng,CUI Yahui,YE Jianhuai,et al. Research on vibration characteristics of gear system with nonlinear oil film force and mesh force[J]. Proceedings of the CSEE,2009(23):84-91.
[11] 郜浩冬,张以都,吴琼,等. 汇流传动齿轮-转子-轴承系统非线性动力学分析[J]. 振动与冲击,2013(8):105-113,127. GAO Haodong,ZHANG Yidu,WU Qiong,et al. Nonlinear dynamic characteristics of a confluence transmission geared rotor bearing system[J]. Journal of Vibration and Shock,2013(8):105-113,127.
[12] DRIOT N,LAMARQUE C H,BERLIOZ A. Theoretical and experimental analysis of a base-excited rotor[J]. Journal of computational and nonlinear dynamics,2006,1(3):257-263.
[13] DAKEL M,BAGUET S,DUFOUR R. Steady-state dynamic behavior of an on-board rotor under combined base motions[J]. Journal of Vibration and Control,2014,20(15):2254-2287.
[14] DAKEL M,BAGUET S,DUFOUR R. Nonlinear dynamics of a support-excited flexible rotor with hydrodynamic journal bearings[J]. Journal of Sound and Vibration,2014,333(10):2774-2799.
[15] 林富生,孟光. 飞行器机动飞行时发动机转子等变速运动的动力学特性研究[J]. 航空学报,2002(4):356-359. LIN Fusheng,MENG Guang. Dynamics of a maneuvering rotor in constant acceleration and deceleration[J]. Acta Aeronautica et Astronautica Sinica, 2002(4):356-359.
[16] 祝长生,陈拥军. 机动飞行时发动机转子系统动力学统一模型[J]. 航空动力学报,2009(2):371-377. ZHU Changsheng,CHEN Yongjun. General dynamic model of aero-engines rotor system during maneuvering flight[J],Journal of Aerospace Power,2009(2):371-377.
[17] HOU L,CHEN Y,CAO Q. Nonlinear vibration phenomenon of an aircraft rub-impact rotor system due to hovering flight[J]. Communications in Nonlinear Science and Numerical Simulation,2014,19(1):286-297.
[18] 刘树鹏. 舰船纵横倾作用下转子轴承系统动力学特性研究[D]. 哈尔滨:哈尔滨工业大学,2011. LIU Shupeng. Rotordynamic characteristic of rotor bearing system for ship with vertical and horizontal wwinging[D]. Harbin:Harbin Institute of Technonlogy,2011.
[19] HAN Q,CHU F. Dynamic behaviors of a geared rotor system under time-periodic base angular motions[J]. Mechanism and Machine Theory,2014,78:1-14.
[20] CAPONE G. Moti orbitali di un rotore rigido simmetrico su cuscinetti cilindrici lubrificati[J]. La Meccanica Italiana,1986,199:37-46.
[21] 闻邦椿,顾家柳,夏松波,等. 高等转子动力学[M]. 北京:机械工业出版社,1999. WEN Bangchun,GU Jialiu,XIA Songbo,et al. Advanced rotor dynamics[M]. Beijing:China Machine Press,1999.
[22] 姚熊亮,杨文山,曾令玉,等. 舰船摇摆作用下综合集成桅杆强度实验[J]. 上海交通大学学报,2010,44(6):758-762. YAO Xiongliang,YANG Wenshan,ZENG Lingyu,et al. Strength test of the integrated mast under ship sway[J]. Journal of Shanghai Jiaotong University,2010,44(6):758-762.
[23] GJB 1060.1-91,舰船环境条件要求[S]. 北京:中国标准出版社. GJB 1060.1-91Warship environmental standard[S]. Beijing:Standards Press of China.