不同抗冲击分析方法对水润滑轴承的适用性分析
Applicability of different anti-shock analysis methods to water-lubricated bearings
熊齐鹏 1刘杰 2金勇 3李瑞卿 3罗斌4
作者信息
- 1. 武汉理工大学 船海与能源动力工程学院,湖北 武汉 430063;武汉理工大学 水路交通控制全国重点实验室,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. 武汉理工大学 交通与物流工程学院,湖北 武汉 430063;武汉理工大学 水路交通控制全国重点实验室,湖北 武汉 430063
- 4. 中国舰船研究设计中心,湖北 武汉 430064
- 折叠
摘要
[目的]针对船舶推进轴系水润滑轴承的不同抗冲击性能分析方法,开展适用性对比研究.[方法]分别采用动态设计分析方法(DDAM)、基于BV043/85 标准的时域分析法、瞬态动力学方法和试验分析方法,对某水润滑艉轴承进行抗冲击性能分析.通过对比 4 种方法的输入冲击谱和应力结果,分析其各自的冲击环境强度和对水润滑轴承的适用性.[结果]根据轴承法兰处和板条处的应力结果:DDAM的计算值最大,其次是时域分析法,计算值最小的是瞬态动力学方法.该水润滑轴承模型采用DDAM分析时出现了冲击输入偏大且集中的现象,故存在一定的局限性;时域分析法与瞬态动力学方法均为时域上的实时模拟法,前者适用于严苛环境,后者则可用于灵活设计冲击谱;虽然试验分析方法具备准确、可靠等优点,但成本较高.[结论]研究结果可为水润滑轴承的结构优化提供参考.
Abstract
[Objective]This study comprehensively investigates the applicability of different anti-shock ana-lysis methods to the water-lubricated bearing of a marine propulsion shaft system.[Methods]The dynamic design analysis method(DDAM),time domain analysis method based on BV043/85 standard,transient dy-namics method and experimental analysis method are respectively used to analyze the anti-shock properties of a water-lubricated stern bearing.The comparative analysis involves assessing the input shock spectrum and stress outcomes generated by each method,offering insights into the robustness of their respective shock envir-onments and suitability for water-lubricated bearings.[Results]After analyzing the stress results at the bear-ing flange and slab,the results show that the DDAM method has the largest result,followed by the time do-main analysis method,and the transient dynamics method has the smallest result.The water-lubricated bearing model has certain limitations in terms of large and concentrated shock inputs when analyzed by DDAM.The time domain analysis method and transient dynamics method are both real-time simulation methods in the time domain,and the former can be chosen in harsh environments,while the latter allows for the flexible design of the shock spectrum.The experimental analysis method is accurate and reliable,but the cost is too high.[Conclusion]The findings of this study offer valuable insights that can serve as references for the optimiza-tion of water-lubricated bearing structures.
关键词
水润滑轴承/抗冲击/动态设计分析方法(DDAM)/时域分析法/瞬态动力学Key words
water-lubricated bearings/anti-shock/dynamic design analysis method(DDAM)/time domain analysis method/transient dynamics引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据