中南大学学报（自然科学版）2011，Vol.42Issue(11)：3352-3358,7.
深海采矿扬矿管几何非线性静力分析
Geometry nonlinear static force analysis of transporting pipe in deep-sea mining
摘要
Abstract
Considering the fact that the ladder pipe in deep-sea mining transporting system is likely to break down under high axial force and the connect parts tend to be stress concentration, a kind of low density was put forward, and high intensity carbon fiber composite pipe is applied to deep-sea mining transporting system. Based on the fact that the transporting pipe is under the inter-action of the draft of mining ship, the gravity of the transporting pipe and the inner liquid as well as buoyancy, carbon fiber composite pipe and steel ladder pipe were analyzed. The results show that when the mining ship is motionless, carbon fiber composite pipe's bending moment and bending stress are equal to steel ladder pipe's, but its axial force is less than one fourth of steel ladder pipe's and it can take larger axial force than steel ladder pipe. When the mining ship moves with constant peed of 0.5 m/s, the axial force, bending moment and bending stress of the two pipes are almost the same as the condition that the mining ship is motionless, but carbon fiber composite pipe's bending stress is less than half of steel ladder pipe's, and it can overcome the defect of overlarge bending stress when ladder pipe is rigid connected.关键词
碳纤维复合管/几何非线性/有限元/深海采矿/扬矿管Key words
carbon fiber composite pipe/ geometric nonlinearity/ finite element/ deep-sea mining/ transporting pipe分类
机械制造引用本文复制引用
徐海良,周刚,吴万荣,吴波..深海采矿扬矿管几何非线性静力分析[J].中南大学学报（自然科学版）,2011,42(11):3352-3358,7.基金项目
国家自然科学基金资助项目(50975290) （50975290）
中南大学中央高校基本科研业务费专项资金资助项目(2011QNZT057) （2011QNZT057）
湖南省自然科学基金资助项目(11JJ5028) （11JJ5028）
