深海潜浮式提升舱的结构设计及水力学计算

Structural Design and Hydraulic Calculation of Deep-Sea Submerged Floating Cabine Lifter

基于深海采矿非连续输送模式,设计了一种潜浮式提升舱,用于海底多金属结核的运输。根据潜浮式提升舱的功能需求进行了总体结构及布局设计,并通过流体仿真软件对其进行了水力学仿真分析,研究不同海况下提升舱的受力情况。计算结果表明,提升舱水平运动时,以压差阻力为主,主体所受的阻力最大;提升舱竖直运动时,以声学仓迎流的姿态有利于减少侧向水阻力、提高提升舱的操作和控制性能;在提升舱竖直运动时对不同海流速度下提升舱的受力情况进行了计算,结果表明,随着运动速度增加,X方向阻力变化明显增大,Y和Z方向受力情况变化较小。

Based on the idea of discontinuous polymetallic nodule mining system,a submerged floating cabin lifter was designed for the transportation of seabed polymetallic nodules.According to the functional requirements of the submerged floating cabin lifter,the overall structure and layout were designed and the hydraulic simulation analysis was carried out by using a fluid simulation software for studying the stress of the cabin lifter under different sea conditions.The calculation results show that when the cabin lifter is moved horizontally,the differential pressure resistance predominates,and the main body suffers the greatest resistance;when the cabin lifter is moved vertically with the acoustic bin in a position of facing the flow,it is beneficial to reduce the lateral water resistance and improve the operation and control of the cabin lifter.Also,the calculation of the force on the cabin lifter being moved vertically under different current velocities shows that the resistance variation in X direction increases obviously,but the forces in Y and Z directions show little variation with the increase of the movement speed.