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Dynamic Response Analysis of a Floating Mooring System 被引量:1
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作者 LE Conghuan DING Hongyan ZHANG Puyang 《Journal of Ocean University of China》 SCIE CAS 2014年第3期381-389,共9页
An innovative floating mooring system with two or more independent floating mooring platforms in the middle and one rigid platform on each side is proposed for improving efficiency and safety in shallow water. For thi... An innovative floating mooring system with two or more independent floating mooring platforms in the middle and one rigid platform on each side is proposed for improving efficiency and safety in shallow water. For this new system, most of collision energy is absorbed through the displacement of floating platforms. In order to illustrate the validity of the system, a series of model tests were conducted at a scale of 1:40. The coupled motion characteristics of the floating mooring platforms were discussed under regular and irregular waves, and the influences of wave direction and other characteristics on dynamic response of the system were analyzed. The results show that the mooring system is safest at 0° of wave incident angle, whereas the most dangerous mooring state occurs at 90° of wave incident angle. Motion responses increase with the increase of wave height, but are not linearly related to changes in wave height. 展开更多
关键词 floating mooring system model test wave characteristics impact force motion response
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新型浮动式收敛袋型密封自适应同心性能数值与实验研究 被引量:5
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作者 孙丹 王平 +3 位作者 赵欢 张国臣 肖忠会 孟继纲 《航空学报》 EI CAS CSCD 北大核心 2020年第3期320-330,共11页
提出了新型浮动式收敛袋型密封结构,建立了新型收敛袋型密封数值求解模型,研究新型收敛袋型密封周向压力分布规律,分析进出口压比和偏心率对新型收敛袋型密封泄漏量及浮动同心力的影响。设计搭建了浮动式自同心密封实验台,在数值计算结... 提出了新型浮动式收敛袋型密封结构,建立了新型收敛袋型密封数值求解模型,研究新型收敛袋型密封周向压力分布规律,分析进出口压比和偏心率对新型收敛袋型密封泄漏量及浮动同心力的影响。设计搭建了浮动式自同心密封实验台,在数值计算结果与实验测试结果相互验证的基础上,研究进出口压比和偏心率对新型浮动式收敛袋型密封泄漏量及自适应同心性能的影响。研究结果表明:在本文研究工况下,新型收敛袋型密封所产生的浮动同心力是传统迷宫密封的8.9~10.9倍。在不同进出口压比和偏心率下,传统浮动式迷宫密封均始终处于初始偏心位置,自适应同心性能较差。新型浮动式收敛袋型密封均向转子轴心方向移动,且随着进出口压比和偏心率的增大,浮动响应时间缩短,自适应同心性能增强。新型浮动式收敛袋型密封具有良好的浮动响应特性和自适应同心性能。 展开更多
关键词 浮动式收敛袋型密封 偏心率 浮动同心力 浮动响应特性 自适应同心性能
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