论文部分内容阅读
为解决海底输油软管铺设过程中,特别是无张紧器作业工况下的管道张力控制问题,在闭式静液传动技术的基础上,研发了深水软管滚筒驱动装置的液压旋转驱动系统.首先设计了深水软管滚筒驱动装置的机械结构,并分析了铺管作业时系统的受力及运动状态.在此基础之上,设计了液压旋转驱动系统的基本回路.利用MATLAB建立了包括机械传动系统、液压驱动系统及张力补偿控制系统在内的软管滚筒驱动装置仿真模型.针对不同的铺设作业工况和外负载条件,对驱动装置进行了仿真分析,研究了驱动装置对管道铺设张力的控制调节作用.结果表明:所提出的驱动控制方法能够适应海洋作业环境下的外负载波动,在一定程度上实现软管的恒张力铺设,且在超深水作业时,也能够与张紧器的作业状态协调.“,”To control tensions of pipeline without tensioner during installation of subsea flexible pipe,a hydraulic rotary driving system for deep-water flexible pipe reel has been developed on bases of the conventional closed hydrostatic transmission system.Firstly,mechanical structure of the driving system for deep-water flexible pipe reel is designed and the forces and movements of the system during oil pipeline installation are analyzed.On this basis,basic loop of the hydraulic rotary driving system is designed.By using MATLAB,the model for driving system for flexible pipe reel is established,including mechanical transmission elements,hydraulic driving system and tension-compensation control system.With consideration to various conditions and external loads expected during oil pipeline installation,simulation analysis is performed for the driving system to identify its performance in controlling and regulating tension of the oil pipeline during installation.Research results show that the proposed driving system can be deployed to cope with fluctuating external loads during offshore operations.In addition to ensure oil pipeline installation under constant tension,the system may be well coordinated with tensioners during operations in ultra-deep water areas.