|
|||||
|
|
| 纵倾角对筒基平台气浮拖航影响模型试验研究 | |
| 引用本文： | 乐丛欢,丁红岩,董国海,张浦阳.纵倾角对筒基平台气浮拖航影响模型试验研究[J].华中科技大学学报(自然科学版),2012,40(6):86-89. |
| 作者姓名： | 乐丛欢 丁红岩 董国海 张浦阳 |
| 作者单位： | 1. 大连理工大学海岸和近海工程国家重点实验室,辽宁大连,116023 2. 天津大学建筑工程学院,天津300072 天津大学水利工程仿真与安全国家重点实验室,天津300072 天津大学滨海土木工程结构与安全教育部重点实验室,天津300072 3. 天津大学建筑工程学院,天津300072 天津大学滨海土木工程结构与安全教育部重点实验室,天津300072 |
| 基金项目： | 国家高技术研究发展计划资助项目，国家国际科技合作专项资助项目 |
| 摘 要： | 以某四筒一简型基础平台为对象，就不同后倾纵倾角（后倾角）拖航组合，采用1：20的模型进行顺浪和逆浪下的拖航试验．通过测定各试验组合拖航过程中平台运动加速度、筒内气压力、筒底水压力以及拖缆力变化，并对试验数据进行对比分析，得到纵倾角对筒型基础平台拖航基本力学参数的影响，进而得出其对平台拖航稳性的影响．结果表明：设置一定的后倾角，可明显降低筒型基础平台拖航时的摇摆以及升沉运动的幅度，但后倾角对提高平台拖航稳性是有限的，与逆浪拖航相比，后倾角对平台顺浪拖航影响较大．对于该四筒一筒型基础平台，在顺浪和逆浪拖航中，当设置1。的后倾角时，平台的拖航稳性和耐波性均最高． |
| 关 键 词： | 筒型基础 气浮 拖航 纵倾角 模型试验 |
Model test and analysis of influence of trim angle on towing of platform with air cushion supported by bucket foundation |
|
| Le Conghuan,Ding Hongyan,a,b,c Dong Guohai,Zhang Puyang.Model test and analysis of influence of trim angle on towing of platform with air cushion supported by bucket foundation[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2012,40(6):86-89. | |
| Authors: | Le Conghuan Ding Hongyan a b c Dong Guohai Zhang Puyang |
| Institution: | 2a,2c(1 State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian 116023,Liaoning China;2 a School of Civil Engineering,b State Key Laboratory of Hydraulic Engineering Simulation and Safety,c Key Laboratory of Coast Civil Structure Safety of Ministry of Education,Tianjin University,Tianjin 300072,China) |
| Abstract: | Towing tests were conducted on a 1∶20 scaled model of a platform with 4-bucket foundation with different angles of trim by stern in the following and head sea.The acceleration,the internal air pressure,the bottom water pressure of the bucket and towing force of the platform were determined in the process of towing of the bucket foundation platform.The effect of trim angle on basic mechanical parameters of the bucket foundation platform during towing in following sea and head sea by comparing was examined and the test data was analyzed to evaluate influence of the trim angle on the towing stability.Setting a certain backward trim angle can visibly reduce the dynamic response of the heave and sway motions.However,the backward trim angle to improve platform towing stability is limited.Compared with the towing in head sea,the backward trim angle has more influence on the platform towing in following sea.The 4-bucket foundation platform set 1° backward trim angle has the greatest stability and seakeeping when towing in the following and head sea. |
| Keywords: | bucket foundation air cushion towingf trim angle model test |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |