• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (8): 183-191.doi: 10.3901/JME.2019.08.183

• 交叉与前沿 • 上一篇    下一篇

深海海底钻机收放装置关键零部件可靠性分析与试验

金永平, 万步炎, 刘德顺   

  1. 湖南科技大学海洋矿产资源探采装备与安全技术国家地方联合工程实验室 湘潭 411201
  • 收稿日期:2018-05-14 修回日期:2018-11-13 出版日期:2019-04-20 发布日期:2019-04-20
  • 通讯作者: 金永平(通信作者),男,1984年出生,博士,副教授。主要研究方向为海洋矿产资源探采技术与装备、机械系统动力学。Email:jinyongping12@163.com
  • 作者简介:万步炎,男,1964年出生,博士,教授。主要研究方向为海洋矿产资源探采技术与装备。Email:cimrwby@vip.sina.com;刘德顺,男,1962年出生,博士,教授。主要研究方向为多学科稳健优化设计、机械系统动力学、海洋矿产资源探采技术与装备。Email:liudeshun@hnust.edu.cn
  • 基金资助:
    国家自然科学基金(51705145,51779092)、国家重点研发计划(2017YFC0307501)和国家高技术研究发展计划(863计划,2012AA091301)资助项目。

Reliability Analysis and Experimental for Key Component of Launch and Recovery Equipment of Seafloor Drill

JIN Yongping, WAN Buyan, LIU Deshun   

  1. National-Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology, Hunan University of Science and Technology, Xiangtan 411201
  • Received:2018-05-14 Revised:2018-11-13 Online:2019-04-20 Published:2019-04-20

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。

关键词: 可靠性分析, 深海海底钻机, 收放装置, 随机不规则波浪

Abstract: 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.

Key words: launch and recovery equipment, random irregular wave, reliability analysis, seafloor drill

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