浮式塔的动力计算
Dynamics of a floating tower
-
摘要: 采用频域二阶摄动法研究了浮式塔在给定环境条件下的动力响应.计算了浮式塔在不规则波上的一阶运动响应函数和运动谱以及张力谱,同时进行了相应的模型试验.由结果的比较可以看出,试验结果与理论方法计算得到的结果吻合较好.计算结果表明,波浪的二阶作用对浮式塔的低频纵荡有影响.计算结果与试验结果的比较说明频域二阶摄动法可以用于浮式塔的动力分析.Abstract: The perturbation method is applied to investigate the dynamics of a floating tower under irregular waves in the frequency domain.Ratio amplitude operator and spectra of surge and tension of the floating tower are calculated.At the same time the corresponding model tests are carried out in the State Key Laboratory of Ocean Engineering,Shanghai Jiaotong University.From the comparison,it can be found that the calculated results agree well with the test results.The results show that the second-order wave force has an effect on the slow oscillation of the floating tower in surge direction.The perturbation method can be used to analyze the dynamics of a floating tower.
-
Key words:
- floating tower /
- motion response /
- perturbation method /
- model test
-
LOU Jack Y K,RACINEF,X U,Fred Y F,et al.Floating jacket——A new concept for the design of a floating production,storage and offloading platform in deep water[A].27th Annual Offshore Technology Conference[C].Houston,Texas,USA,1995. LI Bo,JI Chun-qun,LI Jun.A new concept of deep water production,storage system[A].Proceedings of OMAE'99[C].Newfoundland,Canada,1999. 李波.新型采油平台——浮式塔的一阶动力响应及二阶定常慢漂力[D].上海:上海交通大学,1999. CHEN Xiao-hong,HUANG Xiang-lu.The motion and mooring line loads of a moored semi-submersible in waves[A].Proceedings of OMAE'97[C].Yokohana,Japan,1997.235～241. CHEN Xiao-hong,HUANG Xiang-lu.Motion response of a semi-submmersible platform in waves[A].Proceedings of ISOPE[C].Los Angeles,California,USA,1996. 陈小红,黄祥鹿.单点系泊海洋资料浮标的动力分析.中国造船,1995,(3):1～8. 范菊,陈小红,季春群.转塔系泊油轮的动力分析[J].上海交通大学学报,2000,34(1):152～156. 鲍莹斌.中等水深轻型张力腿平台的研究[D].上海:上海交通大学,1999. -
计量
- 文章访问数: 682
- HTML全文浏览量: 11
- PDF下载量: 1203
- 被引次数: 0
下载:
