以某深水浮式生产储卸油装置（FPSO）单点系泊系统为研究对象，对该系泊系统的主轴承疲劳寿命进行了机械工程与海洋工程的交叉研究。建立主轴承的力学分析模型，给出基本额定动载荷、当量动载荷和基本额定疲劳寿命计算方法。同时建立系泊性能分析模型，得到设计极端工况（100-yr-RP）和设计生存工况（1000-yr-RP）下，对单点系泊主轴承的作用力和力矩以及在30年寿命期内由FPSO首摇将完成的等效转数。结果表明，单点系泊主轴承滚柱和滚道的循环应力引起滚道和滚动单元的疲劳脱落是考虑重点，通过计算受力最恶劣的主轴承支持滚道的基本额定疲劳寿命$ {L}_{10} $为197年，远超30年免维护的要求，具有6.57倍的安全系数，满足深水FPSO单点系泊主轴承设计预期要求。
A deepwater FPSO has undergone various analysis and cross study of mechanical and ocean engineering for the weathervaning main roller bearing (MRB) in the turret mooring system. The mooring hydrodynamic motion and MRB mechanical motion were analyzed simultaneously. The mooring system was calculated through time domain coupled method，and the calculation methods of MRB basic rated dynamic load, equivalent dynamic load and basic rated life are given. The force transfer at turret bearing level under design extreme conditions (100-yr-RP) and design survival conditions (1000-yr-RP) was emphatically studied, the calculation method of an equivalent load on the MRB raceways was given. The equivalent revolutions cumulative effect was calculated during the 30 years of FPSO yaw motion. The results shown the supporting raceway with worst stress, the safety factor of fatigue life is 6.57, which is much higher than the required safety factor 2.
2022,44(14): 100-106 收稿日期：2022-03-25
DOI：10.3404/j.issn.1672-7649.2022.14.022
分类号：TE951
基金项目：工业与信息化部高技术船舶科研项目(E-0819C0002)；中国海油石油集团有限公司科技发展项目 (CNOOC-KJ 135 JSPJ 08 GC 2019-02)
作者简介：琚选择 (1979-)，男，博士，高级工程师，研究方向为海洋油气储运工程与海洋工程装备
参考文献：
[1] 吴伦楷. 浮式生产系统新的发展动向[J]. 中国海洋平台, 2002(5): 8–11
[2] 海洋石油工程设计指南编委会. 海洋石油工程设计指南: 海洋石油工程FPSO与单点系泊系统设计[M]. 北京: 石油工业出版社, 2007.
[3] 杜庆贵, 沈晓婵, 檀国荣, 等. FPSO应用现状及发展趋势浅析[J]. 海洋工程装备与技术, 2017, 4(2): 63–68
[4] 吴洁, 卢冬冬, 姚潇, 等. FPSO转塔领域技术综述[J]. 船舶工程, 2020, 42(10): 113–119+148
[5] 李达, 白雪平, 易丛. “海洋石油118”单点系泊系统选型设计[J]. 船海工程, 2016, 45(5): 166–171
[6] 中国船舶及海洋工程设计研究院. 大国重器之“海洋石油119”FPSO[J]. 船舶, 2021, 32(1): 120–123
[7] 王忠畅, 白雪平, 李达, 等. 内转塔式单点系泊系统敏感性研究[J]. 舰船科学技术, 2017, 39(17): 85–90+122
[8] WANG S Q, LU P, EMILIO L. Weathervaning characteristics of a turret moored fpso in squalls[C]// SNAME 20th Offshore Symposium, Houston, Texas, U. S. A. , February 2015.
[9] GÖNCZ P, POTOFINIK R, GLODEŽ S. Load capacity of a three-row roller slewing bearing raceway[J]. Procedia Engineering, 2011(10): 1196–1201
[10] ZHOU C, YU C G. Theoretical analysis and simulation calculation of three-row-roller slewing bearings stiffness[C]. //2nd International Conference on Machinery, Electronics and Control Simulation (MECS 2017), Taiyuan, China, 2017.
[11] KANIA L. Modelling of rollers in calculation of slewing bearing with the use of finite elements[J]. Mechanism and Machine Theory, 2006, 41(11): 1359–1376
[12] 郑红梅, 田贵, 梁昌文, 等. 基于弹塑性有限元方法的转盘轴承材料许用接触应力研究[J]. 轴承, 2016(1): 36–39
[13] LAI J, LUND T, RYDÉN K, et al. The fatigue limit of bearing steels – Part I: A pragmatic approach to predict very high cycle fatigue strength[J]. International Journal of Fatigue, 2012(38): 155–168
[14] GÖNCZA P, POTOČNIK R, GLODEŽ S. Fatigue behaviour of 42CrMo4 steel under contact loading[J]. Procedia Engineering, 2010, 2(1): 1991–1999
[15] 祝溪明. 滚动轴承材料热处理及其新技术应用研究[J]. 机械设计与制, 2012(12): 220–221
[16] CHEN G C, WEN G, XIAO Z M, et al. Experimental study on contact force in a slewing bearing[J]. Journal of Tribology, 2018, 140(7): 02140201–02140210
[17] 许东海, 方成刚, 杨春. 转盘轴承实验台模型的建立[J]. 机械设计与制造, 2014(1): 226–228
[18] NACIRI M, JAMET C, DARAN R, et al. FPSO turret mooring system: A 5000-ton mooring force challenge [C]// Deep Offshore Technology International, PennWell Corp United Kingdom, New Orleans, 2011.
[19] VOGT C, GOODMAN M L, COMMANDEUR, et al. Turret mooring system: the key to oil production in the extreme atlantic frontier environment[C]//Offshore Technology Conference, SPE and AIE, Houston, Texas, U. S. A. , 1999.
[20] 蔡世亮. CALM单点系泊系统国产化可行性探讨[J]. 石油规划设计, 2021, 32(1): 41–47+66
[21] 邓毅锋. 30万t单点系泊系统大型滚柱轴承润滑故障分析及解决方案[J]. 润滑与密封, 2010, 35(8): 117–120
[22] 武宏伟, 温景波, 陈相东, 等. 单点系泊系统用转盘轴承的研制[EB]. 河南省, 洛阳LYC轴承有限公司, 2012-12-20.
[23] 吕岩, 琚选择, 李秀锋, 等. 海上原油装卸单点建设条件及场址选择技术研究[J]. 海洋工程装备与技术, 2018, 5(5): 300–304
[24] 马邦勇. CALM单点系泊系统浮筒主轴承选型研究[J]. 石油机械, 2018(7): 45–50
[25] 蒋玉孝, 刘少军. ISO 281: 1990与ISO 281: 2007滚动轴承寿命计算标准的比较[J]. 机械强度, 2015, 37(3): 498–503
[26] ISO 281 SECOND EDITION. Rolling Bearings-Dynamic load ratings and rating life[S]. 2007.
