| 黄焱,王定仕,孙剑桥*.极地船舶典型航行模式下螺旋桨铣冰过程的模型试验[J].实验力学,2020,35(6):1003~1013 |
| 极地船舶典型航行模式下螺旋桨铣冰过程的模型试验 |
| Model test of propeller-ice milling process under typical navigation mode of polar ships |
| 投稿时间：2019-09-08 修订日期：2019-11-06 |
| DOI：10.7520/1001-4888-19-160 |
| 中文关键词: 螺旋桨 铣冰 推力 扭矩 冰载荷 |
| 英文关键词:propeller ice milling thrust torque ice load |
| 基金项目:国家重点研发计划项目(2018YFC1406000);GF基础科研计划项目(JCKY2016604B001);工信部高技术船舶科研项目(2017-614与G18473CJ08)资助 |
|
| 摘要点击次数: 668 |
| 全文下载次数: 178 |
| 中文摘要: |
| 冰区航行中，船舶常会遇到冰困情形，此时往往需要通过螺旋桨反转倒车来脱离困境。倒车脱困需要螺旋桨在高转速、低进速的条件下进行，本文基于典型冰困场景进行了螺旋桨铣冰过程中的模型试验，探究了冰载荷对于螺旋桨推力扭矩和螺旋桨桨叶所受载荷的影响。通过一系列试验探究表明，在小切削深度下，螺旋桨的推力较敞水情况下有所增大，而在大切削深度下推力将会减小。这种不同变化的趋势取决于桨叶是否与冰的粒状层发生接触。扭矩则随着切削深度的增大而持续增大，在切削到冰的粒状层时，螺旋桨扭矩达到最大值。上述规律同样适用于单片桨叶的轴向冰载荷与切向冰载荷的变化情况。 |
| 英文摘要: |
| Ships stuck in ice often need to rotate the propellers inversely to go astern. Under such circumstances, propellers are generally of a high rotational speed but at a relatively low advance. In this study, a series of model tests is conducted to simulate the propeller-ice milling process under the backing situation. The influences of the ice load on the propeller thrust and torque, as well as the load on propeller blades, are investigated. The results show that during the ice milling process the propeller thrust increases under a small depth of cut, but reduces at a larger depth of cut. For the propeller torque, an increase can be always observed compared to the open water scenario, and the torque normally increases with the increase of cut depth. When the propeller is in contact with the granular layer of the ice during milling process, the torque would reach its maximum value. The same rules can be obtained for the variation of the axial and tangential ice loads on a single blade. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
