深海海底钻机收放装置关键零部件可靠性分析与试验
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摘要
深海海底钻机收放装置是实现深海海底钻机安全可靠、准确稳定下放和回收的关键技术装备。开展随机不规则波浪激励下的深海海底钻机收放装置关键零部件可靠性分析,是设计安全可靠的深海海底钻机收放装置的基础。提出一种随机不规则波浪激励下收放装置关键零部件可靠性分析方法,并对不同变异系数下的收放装置关键零部件的可靠度进行分析计算,结果表明:在随机不规则波浪激励下,收放装置的收放液压缸活塞杆所受的拉力将产生随机不规则的动态响应,并且收放液压缸活塞杆所受拉力的均值随着钻机托架翻转角的增大而减小;当收放液压缸活塞杆材料的变异系数从0.1提高至0.3时,对应的收放液压缸活塞杆的可靠度为0.999 126,此时收放液压缸活塞杆仍具有非常高的可靠度;进一步对比理论分析与深海海底钻机收放装置工程样机海上试验结果可知,两种结果基本一致,从而验证了理论研究模型和随机数值分析方法的正确性,研究结果为深海海底钻机收放装置的设计提供技术支撑。
Launch and recovery equipment is the necessary equipment to realize the safe, reliable and accurate launch and recovery for seafloor drill. Reliability analysis for key component of launch and recovery equipment under the random irregular wave environment is the basis of designing safe and reliable launch and recovery equipment. A new reliability analysis method for evaluating dynamic response characteristics of key component of the launch and recovery equipment is presented, and the reliability of the key component of the launch and recovery equipment is calculated under different variation coefficient. The research results show that the tension of the piston rod of hydraulic cylinder appeared an irregular dynamic response under irregular wave, and the mean value of the tension of the piston rod of hydraulic cylinder is enhanced along with the increase of the flip angle of the launch and recovery equipment. A reliability of 0.999 126 is calculated when the variation coefficient is 0.3. The results of sea trial verify the correctness of the theoretical analysis and the random numerical simulation method. The technical support is provided for designing a safe, reliable and accurate launch and recovery equipment.
Launch and recovery equipment is the necessary equipment to realize the safe, reliable and accurate launch and recovery for seafloor drill. Reliability analysis for key component of launch and recovery equipment under the random irregular wave environment is the basis of designing safe and reliable launch and recovery equipment. A new reliability analysis method for evaluating dynamic response characteristics of key component of the launch and recovery equipment is presented, and the reliability of the key component of the launch and recovery equipment is calculated under different variation coefficient. The research results show that the tension of the piston rod of hydraulic cylinder appeared an irregular dynamic response under irregular wave, and the mean value of the tension of the piston rod of hydraulic cylinder is enhanced along with the increase of the flip angle of the launch and recovery equipment. A reliability of 0.999 126 is calculated when the variation coefficient is 0.3. The results of sea trial verify the correctness of the theoretical analysis and the random numerical simulation method. The technical support is provided for designing a safe, reliable and accurate launch and recovery equipment.
引文
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[2]BUDNIK V,CHERNYI S.Future development of the world ocean mining for the industry[J].Procedia Engineering,2016(150):2150-2156.
[3]戴瑜,张健,张涛,等.基于多体动力学模型集成的深海采矿系统联动仿真[J].机械工程学报,2017,53(4):155-160.DAI Yu,ZHANG Jian,ZHANG Tao,et al.Motion simulation of the deep ocean mining system based on its integrated multi-body dynamic model[J].Journal of Mechanical Engineering,2017,53(4):155-160.
[4]LIU Shaojun,HU Jianhua,ZHANG Ruiqiang,et al.Development of mining technology and equipment for seafloor massive sulfide deposits[J].Chinese Journal of Mechanical Engineering,2016,30(5):863-870.
[5]张汉泉,陈奇,万步炎,等.海底钻机的国内外研究现状与发展趋势[J].湖南科技大学学报,2016,31(1):3-7.ZHANG Hanquan,CHEN Qi,WAN Buyan,et al.Current research and development trends of seabed drill rig[J].Journal of Hunan University of Science and Technology,2016,31(1):3-7.
[6]MEREY S.Drilling of gas hydrate reservoirs[J].Journal of Natural Gas Science and Engineering,2016,35(A):1167-1179.
[7]WAN Buyan,ZHANG Guang,HUANG Xiaojun.Research and development of seafloor shallow-hole multi-coring drill[C]//Proceedings of the Twentieth International Offshore and Polar Engineering Conference,Beijing,China.2010:588-591.
[8]万步炎,金永平,黄筱军.海底20 m岩芯取样钻机的研制[J].海洋工程装备与技术,2015,2(1):1-5.WAN Buyan,JIN Yongping,HUANG Xiaojun.Development of 20 m seafloor core sampling drill[J].Ocean engineering equipment and technology,2015,2(1):1-5.
[9]MAO Liangjie,LIU Qingyou,ZHOU Shouwei,et al.Deep water drilling riser mechanical behavior analysis considering actual riser string configuration[J].Journal of Natural Gas Science&Engineering,2016,33:240-254.
[10]JIN Yongping,WAN Buyan,LIU Deshun,et al.Numerical simulation of dynamic response characteristics for launch and recovery system under random irregular wave[J].Journal of Vibroengineering,2016,18(8):5390-5405.
[11]张义民.机械动态与渐变可靠性理论与技术评述[J].机械工程学报,2013,49(20):101-114.ZHANG Yimin.Review of theory and technology of mechanical reliability for dynamic and gradual systems[J].Journal of Mechanical Engineering,2013,49(20):101-114.
[12]KHAN R A,SIDDIQUI N A,NAQVI S Q A,et al.Reliability analysis of TLP tethers under impulsive loading[J].Reliability Engineering&System Safety,2006,91(1):73-83.
[13]曾钦.海底60 m多用途钻机收放机构设计研究[D].湘潭:湖南科技大学,2015.ZENG Qin.Design and research of launch&recovery mechanism of 60m multi-purpose seafloor drill rig[D].Xiangtan:Hunan University of Science and Technology,2015.
[14]KORDE U A.Near-optimal control of a wave energy device in irregular waves with deterministic-model driven incident wave prediction[J].Applied Ocean Research,2015,53:31-45.
[15]JEANS T L,FAGLEY C,SIEGEL S G,et al.Irregular deep ocean wave energy attenuation using a cycloidal wave energy converter[J].International Journal of Marine Energy,2013,1:16-32.
[16]MAO Huan,YANG Hezhen.Parametric pitch instability investigation of deep draft semi-submersible platform in irregular waves[J].International Journal of Naval Architecture and Ocean Engineering,2016(8):13-21.
[17]WANG Shan,SOARES C G.Experimental and numerical study of the slamming load on the bow of a chemical tanker in irregular waves[J].Ocean Engineering,2016(111):369-383.
[18]PIERSON W J,MOSKOWITZ J L.A proposed spectral form for fully developed wind seas based on the similarity theory of S.A.Kitaigorodskii[J].Journal of Geophysical Research,1964,69(24):5181-5190.
[19]李积德.船舶耐波性[M].哈尔滨:哈尔滨工程大学出版社,2007.LI Jide.Ship seakeeping[M].Harbin:Harbin Engineering University Press,2007.
[20]TASAI F.Damping force and added mass of ships heaving and pitching[J].Transactions of the West Japan Society of Naval Architects,1961,21:109-132.
[21]FOSSEN T I,SMOGELI?N.Nonlinear time-domain strip theory formulation for low-speed maneuvering and station-keeping[J].Modeling,Identification and Control,2004,25(4):201-221.
[22]DOWNING S,SOCIE D.Simple rainflow counting algorithms[J].International Journal of Fatigue,1982,4(1):31-40.
[23]MCINNES C,MEEHAN P.Equivalence of four-point and three-point rainflow cycle counting algorithms[J].International Journal of Fatigue,2008,30(3):547-59.
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