中国机械工程 ›› 2015, Vol. 26 ›› Issue (19): 2557-2563.

• 机械基础工程 • 上一篇    下一篇

不同收放速度对海上钻机收放系统影响分析

金永平1;万步炎2;刘德顺1,2;彭佑多2   

  1. 1.中南大学,长沙,410083
    2.湖南科技大学海洋矿产资源探采装备与技术湖南省工程实验室,湘潭,411201
  • 出版日期:2015-10-10 发布日期:2015-10-10
  • 基金资助:

    国家高技术研究发展计划(863计划)资助项目(2012AA091301);

    湖南省科技重大专项资助项目(2014FJ1004);

    湖南省自然科学省市联合基金资助项目(2015JJ5029) 

Analyses of Launch & Recovery System of Seafloor Drill under Different Launching and Recovering Velocities

Jin Yongping1;Wan Buyan2;Liu Deshun1,2;Peng Youduo2   

  1. 1.Central South University,Changsha,410083
    2.Hunan Province Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Technology,Hunan University of Science and Technology,Xiangtan,Hunan,411201
  • Online:2015-10-10 Published:2015-10-10
  • Supported by:

     National High-tech R&D Program of China (863 Program) (No. 2012AA091301);

    Hunan Provincial Science and Technology Major Project ( No. 2014FJ1004)

摘要:

以深海钻机收放系统为研究对象,通过建立计入海水阻力的收放系统动力学模型,研究了不同收放速度对收放系统特性的影响。研究结果表明:受海水阻力的影响,钻机在入水前后,摆动角度和脐带缆张力均存在较大差异,海水阻力对两者具有显著的抑制效果。同时,随着下放速度的增大,钻机的摆动幅值和脐带缆张力的变化幅值将不断减小;随着回收速度的增大,钻机的摆动幅值将不断减小,脐带缆张力的最大值将不断增大。

关键词: 海上钻机, 收放系统, 动力学模型, 特性分析

Abstract:

A launch & recovery system of a seafloor drill was chosen as the study object, and the dynamics model was established herein,that considered the influences of the seawater resistance for launch & recovery system of seafloor drill. The dynamic characteristic of launch & recovery system of seafloor drill was analyzed under different launching and recovering velocities. The research results show that there are significant differences in the pendulum angles of the seafloor drill and the tension of the umbilical cable for different stages. The seawater resistance has obvious inhibition effects on reducing the erratic fluctuation of the pendulum angles of the seafloor drill and the tension of the umbilical cable. At the same time, the pendulum angles of the seafloor drill and the tension of the umbilical cable are decreased along with the increase of the launching velocity. As the increasing of recovering velocity, the pendulum angles of the seafloor drill will decrease, while the maximum value of the tension of the umbilical cable will increase.

Key words: seafloor drill, launch &, recovery system, dynamics model, characteristic analysis

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