摘要
船舶在冰区航行时,经常会发生碎冰在艏部下沉,并沿着船体滑入螺旋桨前的流场中,导致高速旋转的螺旋桨与冰发生切削作用,使得螺旋桨桨叶发生严重变形和损坏。为了进一步分析和研究螺旋桨-冰切削过程中的各种载荷,文中首先在拖曳水池中搭建了螺旋桨-冰切削试验平台,详细叙述了测量设备和模型冰推送装置。然后,通过重复性分析以及与其他学者的研究进行对比分析,验证了试验平台的可行性和可靠性。最后,对螺旋桨-冰在空气中以及在水中切削时受到的载荷情况进行了详细的分析。试验结果表明:螺旋桨-冰切削试验平台的搭建具有可行性,能够较好地测量螺旋桨-冰的切削载荷;模型冰移动的速度越快,螺旋桨受到的挤压载荷越大;螺旋桨-冰切削过程中接触载荷的详细描述对冰级螺旋桨的结构设计具有重要的工程意义和应用价值。
It usually causes the crushed ice to sink on the bow when ships sail in the ice zone. The crushed ice is gradually sliding to the flow field in front of propeller along the hull, resulting in high-speed rotation of the propeller and ice milling, so that the propeller receives severe deformation and damage. In order to further analyze and study various loads in propeller-ice milling process, the testing apparatus of propellerice milling was setup in towing tank, and the measurement equipment and model ice feeding mechanism are described in detail. And, the feasibility and reliability of the testing apparatus are validated by the repeatability analysis and the comparison with the results of other scholars. Finally, the loads of the propeller-ice milling in air as well as in water were analyzed in detail. The experimental results show that the construction of the testing apparatus of propeller-ice milling is feasible and can do a better measure of milling loads of propeller-ice. The faster the model ice moves, the greater the compressive load on the propeller. Detailed description of contact load during propeller-ice milling has an important engineering significance and applications value for the structure design of the ice propeller.
作者
郭春雨
徐佩
骆婉珍
王恋舟
GUO Chun-yu;XU Pei;LUO Wan-zhen;WANG Lian-zhou(College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)
出处
《船舶力学》
EI
CSCD
北大核心
2019年第8期957-967,共11页
Journal of Ship Mechanics
基金
国家自然科学基金资助项目（41176074,51209048,51379043,51409063）
工信部高技术船舶科研项目（G014613002）
哈尔滨工程大学青年骨干教师支持计划（HEUCFQ1408）
