深害采矿力学行为.doc

2015届毕业设计（论文）说明书 深海采矿输运软管力学行为分析 院 、 部： 机械工程学院 学生姓名： 指导教师1： 职称 指导教师2： 职称 专 业： 机械设计制造及其自动化 班 级： 机本1104 完成时间： 2015-5-28 摘 要 随着陆地资源的日渐枯竭，海洋矿藏已成为矿物开采的方向。海洋采矿的难度相对陆地采矿较大，把金属结核矿物输运到海面的技术是关键。国际上最公认的技术是利用管道流体提升，其中效率最高的是软管运输。输运软管的参数设计和材料选择是否合理，决定着整个采矿系统的性能是否优良。本文对输运软管进行力学分析，旨在为恰当确定软管的形状、尺寸和材料提供参考依据。 本文针对海洋采矿作业过程中输运软管进行了静力学分析，研究分析得出输运软管在深海采矿系统作业过程中受到了自身重力、内部流体重力、浮力体拉力、海洋阻力、海水浮力、集矿机的拖拽力的作用力。讨论这些变量因素为后文的模拟仿真提供了依据。 在静力学分析的基础上，本文利用ANSYS软件建立输运软管和内部流体的有限元模型。在模拟仿真计算时通过改变输运软管参数弹性模量E、管外径大小D、内流速度v、内流密度V、内流的粘性系来研究输运软管的最大侧向位移m、最大主应力这个两大力学特性受这些因素的作用效果。 通过静力学分析和模拟仿真为工程设计与实际应用提供了直观的参考结论。 关键字：深海采矿、软管、静力学分析、力学特性。 Abstract With the exhaustion of the land resources, Marine deposits have become the direction of the future mineral exploration. And the difficulty of the ocean mining are relatively than terrestrial mining is more difficult. Among them the metal TB mineral is the key to the sea. The most recognized international technology is the use of pipeline fluid to ascend, one of the highest efficiency is the hose. Transport hose parameter design is reasonable, determines whether the whole system has good performance. And in this paper, the transport tube is analyzed with mechanics, and to determine appropriate hose provided a reference for the shape, size and material. Based on this background, the ocean mining operations in the process of stress is complex, through the reasonable simplification. First hose for the statics analysis, this paper studied and analyzed the transport hoses are in the process of deep sea mining system working load (from tension, Marine gravity, buoyancy body of hose, set mining machine the drag forces). Discuss these variable factors simulation provided the basis for later. On this basis, set up by use of ANSYS software, a transport hose and finite element model of the int