深海采矿输送系统的运动和载荷分析

根据深海采矿软管输送系统大变形的特点,针对输送软管两端在采矿船和采矿车的牵引下运动,同时受到浮力、重力、海浪、海流、海水阻力和管内流体等复杂载荷耦合作用的情况,运用海浪和海流理论、流体力学和Morsion阻力方程,对输送系统的运动和外部载荷进行了分析,得出了海水对管道运动阻力计算公式和管内流体运动对管道作用力计算公式,并对上述公式进行了合理简化,为深海采矿输送系统的静态分析提供了理论依据.图3,参12.

Nonlinear mechanical analysis theory of the sea mining flexible mineral transporting pipe

According to the large deformation features of the transporting pipe,In real condition,the transporting pipe is moved under the draft of mining vehicle and ship,meanwhile it is under the action of the complex coupling loads that include gravity and buoyancy of the transporting pipe,the resistance caused by ocean current and pipe moving,and the force of the inner fluid exerted on the pipe.Based on gravity wave theory,the experience calculating formula of ocean current,hydrodynamics and Morsion resistance equation,the movement and the coupling loads of the system were analysed.The moving resistance calculating formula of transporting pipe and the formula of force that acted on the pipeline by the fluid in it was gained and simplified,it is the basic theory for the nonlinear mechanics analysis of transporting pipe.3figs.,12refs.