舰船水润滑艉轴承综合支承特性分析  

Comprehensive support characteristics analysis of ship water lubricated stern bearings

作　　者：解忠良 张昊 田佳彬[2] 杨康 杨铭 XIE Zhongliang;ZHANG Hao;TIAN Jiabin;YANG Kang;YANG Ming(Department of Engineering Mechanics,Northwestern Polytechnic University,Xi’an 710072,China;Wuhan 2nd Ship Design Institute,Wuhan 430205,China;The 213th Institute,China Ordnance Industry Corporation,Xi’an 710000,China;China Shipbuilding and Marine Engineering Design and Research Institute,Shanghai 200011,China)

机构地区：[1]西北工业大学工程力学系,西安710072 [2]武汉第二船舶设计研究所,武汉430205 [3]中国兵器工业集团公司第二一三研究所,西安710000 [4]中国船舶及海洋工程设计研究院,上海200011

出　　处：《振动与冲击》2024年第17期41-48,78,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(52105205);中国-中东欧国家高校联合教育项目(2021101);陕西省自然科学基础研究计划资助项目(2022JM-003)。

摘　　要：针对舰船水润滑艉轴承在复杂工况下存在的润滑性能不清晰、支承特性不明朗等问题展开了研究,建立了艉轴承润滑特性计算模型,研究了摩擦界面润滑特性,分析了偏心率、长径比以及转速对艉轴承刚度阻尼的影响规律,探明了不同间隙比条件下的临界起飞速度以及转速与艉轴承刚度阻尼特性之间的关系,揭示了轴承参数对艉轴承综合支承特性的影响规律。在此基础上,阐明了间隙比对艉轴承润滑动态特性影响机理。研究结果为艉轴承动态特性及动态响应计算提供了理论依据。Here,unclear lubrication performance and unclear support characteristics of ship water lubricated stern bearings under complex working conditions were studied.The calculation model for lubrication characteristics of stern bearings was established,and lubrication characteristics of friction interface were studied.Effects of eccentricity,length to diameter ratio and rotating speed on stiffness and damping of stern bearings were analyzed.The critical takeoff speed under different clearance ratios and relations between rotating speed and stiffness and damping characteristics of stern bearings were explored,and effects of bearing parameters on comprehensive support characteristics of stern bearings were revealed.Then,the influence mechanism of clearance ratio on lubrication dynamic characteristics of stern bearings was clarified.It was shown that the study results can provide a theoretical basis for dynamic characteristics and dynamic response calculation of stern bearings.

关 键 词：水润滑艉轴承 润滑特性 动态特性 综合支承刚度 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3