水池常规模型冰的单轴压缩强度特征试验研究  

Experimental study on uniaxial compressive strength characteristics of conventional model ice in tank

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作  者:徐佩 李龙辉 王超[3] XU Pei;LI Longhui;WANG Chao(School of Ocean Engineering,Jiangsu Ocean University,Lianyungang 222005,China;Makarov College of Marine Engineering,Jiangsu Ocean University,Lianyungang 222005,China;College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区:[1]江苏海洋大学海洋工程学院,江苏连云港222005 [2]江苏海洋大学马卡洛夫海洋工程学院,江苏连云港222005 [3]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出  处:《中国舰船研究》2025年第2期266-282,共17页Chinese Journal of Ship Research

基  金:江苏省高等学校自然科学研究项目(23KJB580003);国家自然科学基金资助项目(52171300)。

摘  要:[目的]在冰-螺旋桨切削或碰撞试验中,采用满足几何相似和冰力学特性相似准则的模型冰对螺旋桨冰载荷的测试结果而言至关重要。[方法]以淡水冰、盐水冰、尿素冰、混合乙二醇/脂肪族洗涤剂/糖(EG/AD/S)冰以及石蜡模型冰作为研究对象,开展不同材质模型冰的单轴压缩试验,对比测试分析不同应变速率以及冷冻和回温状态下冰试样的压缩强度和破坏模式。[结果]采用冷冻温度为-20℃,冷冻时间为48h,回温温度为-5℃,回温时间为24h所制作的盐水冰可以满足冰-桨的接触试验要求;模型冰的压缩强度从大到小依次为尿素冰、淡水冰、EG/AD/S冰、石蜡模型冰、淡水冰-回温、EG/AD/S冰-回温、盐水冰、尿素冰-回温以及盐水冰-回温。[结论]试验测试结果可为后续冰-螺旋桨切削或碰撞试验中模型冰的选择提供参考。[Objective]In the ice-propeller milling or collision test,in order to accurately test the ice load of the propeller,it is very important to use model ice which satisfies similarity with the geometric and mechanical properties of real ice.[Methods]Uniaxial compression tests of model ice using different materials are carried out with freshwater ice,saltwater ice,urea ice,ethylene glycol/aliphatic detergent/sugar(EG/AD/S)ice and paraffin model ice as the research objects.The compressive strength and failure modes of ice under different strain rates,freezing and tempering conditions are then tested and analyzed.[Results]In its development process,saltwater ice made with a freezing temperature and time of−20℃ and 48 h,and tempering temperature and time of−5℃ and 24 h,can meet the requirements of the ice-propeller contact test.The order of the compressive strength of the model ice in descending order is urea ice,freshwater ice,EG/AD/S ice,paraffin model ice,freshwater ice-tempering,EG/AD/S ice-tempering,saltwater ice,urea ice-tempering and saltwater-tempering.[Conclusion]The results of this study can provide useful references for the selection of model ice in subsequent ice-propeller milling or collision experiments.

关 键 词:淡水冰 盐水冰 单轴压缩强度 冰-桨试验 船用螺旋桨 结冰 压缩强度 

分 类 号:U664.3[交通运输工程—船舶及航道工程]

 

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