常见螺旋桨材料空蚀特性分析  

Analysis of the cavitation characteristics of common propeller materials

作　　者：董建帅 李子如[1,2] 贺伟[1,2] 陈同舟 DONG Jianshuai;LI Ziru;HE Wei;CHEN Tongzhou(Key Laboratory of High Performance Ship Technology,Ministry of Education,Wuhan University of Technology,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;China Ship Scientific Research Center,Wuxi 214082,China;Taihu Laboratory of Deepsea Technological Science,Wuxi 214082,China;Wuhan Research Institute of Materials Protection,China Academy of Machinery Science and Technology Group,Wuhan 430030,China)

机构地区：[1]武汉理工大学高性能船舶技术教育部重点实验室,湖北武汉430063 [2]武汉理工大学船海与能源动力工程学院,湖北武汉430063 [3]中国船舶科学研究中心,江苏无锡214082 [4]深海技术科学太湖实验室,江苏无锡214082 [5]中国机械总院集团武汉材料保护研究所有限公司,湖北武汉430030

出　　处：《哈尔滨工程大学学报》2023年第8期1319-1327,共9页Journal of Harbin Engineering University

基　　金：国家自然科学基金重点国际合作研究项目(51720105011);国家自然科学基金项目(51309184).

摘　　要：为了掌握常见螺旋桨材料在不同空蚀阶段的体积损失规律及形貌变化特点,本文借助磁致伸缩超声振动空蚀仪对螺旋桨常用材料镍铝青铜、黄铜H62、铝合金6061-T6开展空蚀试验,记录质量、空蚀表面形貌变化。基于试验数据,分析不同空蚀阶段的规律特点,通过改变空化强度,观察空泡溃灭程度对空蚀不同阶段的影响。借助有限元数值技术方法反演空化冲击载荷,利用空化冲击载荷与空蚀深度的关系,初步预报NACA0015水翼表面空蚀深度分布。结果表明:不同空蚀阶段持续时间不仅仅取决于材料本身,还与空化强度有关;以黄铜H62为例,计算得到了NACA0015水翼吸力面的空蚀深度分布,最大空蚀深度为45μm。本研究为考虑材料性质影响的水翼空蚀深度数值预报提供了理论基础。Cavitation tests were performed for common propeller materials,such as nickel-aluminum-bronze,brass H62,and aluminum alloy 6061-T6,to elucidate the volume loss behavior and morphology changes at different cavitation stages.A magnetostrictive ultrasonic vibration cavitation instrument was used to record changes in the mass and morphology of the cavitation surface.The cavitation behavior of the materials corresponding to various stages was studied.In addition,the effect of the degree of cavitation collapse on the behavior at different stages was observed by varying the cavitation intensity.The cavitation impact load was inferred from finite-element numerical techniques,and a preliminary prediction of the cavitation depth distribution on the surface of the NACA0015 hydrofoil was carried out using the relationship between the cavitation impact load and the cavitation depth.The results showed that the duration of different cavitation stages was dependent not only on the material but also on the cavitation intensity.For brass H62,the cavitation depth distribution on the suction surface of the NACA0015 hydrofoil was determined,and the maximum cavitation depth was found to be 45μm.This research provides a theoretical basis for the numerical prediction of hydrofoil cavitation depth considering the influence of material properties.

关 键 词：螺旋桨 空蚀特性 空蚀形貌 体积损失 空蚀强度 有限元数值技术方法 空蚀深度 NACA0015水翼 

分 类 号：U661[交通运输工程—船舶及航道工程]