深海海底钻机收放系统动力学随机数值仿真方法研究

doi:10.3901/JME.2018.23.112

机械工程学报 ›› 2018, Vol. 54 ›› Issue (23): 112-120.doi: 10.3901/JME.2018.23.112

深海海底钻机收放系统动力学随机数值仿真方法研究

金永平, 万步炎, 刘德顺, 彭佑多, 郭勇

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:2017-12-26 修回日期:2018-08-04 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 金永平(通信作者),男,1984年出生,博士,讲师。主要研究方向为机械系统动力学、海洋矿产资源探采装备与技术。E-mail: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装备与技术。E-mail: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、海洋矿产资源探采装备与技术。E-mail:liudeshun@hnust.edu.cn;彭佑多,男,1964年出生,博士,教授。主要研究方向为机械系统动力学、海洋矿产资源探采装备与技术。E-mail:ydpeng@hnust.edu.cn;郭勇,男,1983年出生,博士,讲师。主要研究方向为机械系统动力学、海洋矿产资源探采装备与技术。E-mail:250378309@qq.com
基金资助:
国家重点研发计划（2017YFC0307501）和国家自然科学基金（51705145，51779092）资助项目。

A Random Numerical Simulation Method for Launch and Recovery System of Seafloor Drill

JIN Yongping, WAN Buyan, LIU Deshun, PENG Youduo, GUO Yong

National-Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology, Hunan University of Science and Technology, Xiangtan 411201

Received:2017-12-26 Revised:2018-08-04 Online:2018-12-05 Published:2018-12-05

摘要/Abstract

摘要： 提出了一种随机不规则波浪激励下的收放系统动力学随机数值仿真方法。该方法以随机不规则波浪为输入，应用雨流计数法分析收放系统动态特性响应随机分布特征，获取不同水深和海况条件下收放系统动态响应统计规律。以深海海底钻机收放系统为例，对随机不规则波浪激励引起的母船摇荡-脐带缆-深海海底钻机摇荡进行分析，建立了计入海水阻尼的深海海底钻机收放系统动力学模型。然后，以随机不规则波浪的有义波高为特征值，产生随机不规则波浪激励，应用收放系统动力学模型分析计算系统动态随机响应，应用雨流计数法分析收放系统动态响应特性随机分布特征，并对不同水深和海况条件下的钻机摆动状况、升沉运动以及脐带缆张力等动态特性进行随机数值仿真分析与讨论。所提出的方法为随机不规则波浪激励下，海洋装备收放系统动态特性分析提供了新途径。

关键词: 动态特性, 深海海底钻机, 收放系统, 随机不规则波浪, 统计分析

Abstract: A new random numerical simulation method for evaluating dynamic response characteristics of a launch and recovery system is presented, which takes random irregular wave as input, and the random distribution characteristics of dynamic response of launch and recovery system is analyzed by using rain-flow counting method, and the dynamic laws of the launch and recovery system under different water depths and sea state are obtained. A launch and recovery system of a seafloor drill is chosen as a demonstration, the nonlinear coupling mechanism among the movement of the ship, the umbilical cable, and the seafloor drill caused by random irregular wave are investigated, and the dynamic model that considers the influence of the seawater resistance for launch & recovery system of seafloor drill is established. Based on the dynamic model of launch and recovery system of seafloor drill, the significant wave heights are used to produce excitation of the random irregular wave, and the corresponding dynamic random responses of the launch and recovery system are calculated and analyzed. The pendulum angle and the heaving motion of the seafloor drill and the tension of the umbilical cable are calculated and analyzed for the cases of seafloor drill at different water depths and sea state. The method provides a new tool for the dynamic characteristics of launch and recovery system of other seafloor equipment.

Key words: dynamical characteristics, launch and recovery system, random irregular wave, seafloor drill, statistical analysis

中图分类号:

TH122

金永平, 万步炎, 刘德顺, 彭佑多, 郭勇. 深海海底钻机收放系统动力学随机数值仿真方法研究[J]. 机械工程学报, 2018, 54(23): 112-120.

JIN Yongping, WAN Buyan, LIU Deshun, PENG Youduo, GUO Yong. A Random Numerical Simulation Method for Launch and Recovery System of Seafloor Drill[J]. Journal of Mechanical Engineering, 2018, 54(23): 112-120.

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深海海底钻机收放系统动力学随机数值仿真方法研究

A Random Numerical Simulation Method for Launch and Recovery System of Seafloor Drill

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