| 深水半潜式平台Mathieu不稳定问题研究 | |
| Alternative Title | Mathieu instablity study of a deepwater semi-submersible platform |
王俊荣 ; 谢彬
| |
| Source Publication | 工程力学/ENGINEERING MECHANICS
 |
| 2012-10-25 | |
| Volume | 29Issue:10Pages:347-353 |
| ISSN | 1000-4750 |
| Abstract | 半潜式平台的垂荡运动相对较大,当平台的纵摇固有有周期和垂荡固有周期处于一定的倍数关系时,平台的纵摇/横摇运动可能落入Mathieu不稳定区。该文对半潜式平台Mathieu方程进行了推导,获得了各参数的计算公式;根据Mathieu不稳定图谱或数值计算方法,可判断纵摇/横摇运动的稳定性。选取了一个生存状态下的半潜式平台为算例,分析了平台发生Mathieu不稳定问题的条件,并通过调整关键参数抑制不稳定问题的发生,从而获得了避免Mathieu不稳定问题的工程措施,为今后半潜式平台设计提供参考。 |
| Other Abstract | The heave response of a semi-submersible platform is relatively significant than other floaters. While a certain ratio of heave natural period and pitch/roll natural period is reached, the pitch/roll motions of the platform will fall into a Mathieu instability zone. In the paper, a damped Mathieu equation for the semi-submersible platform was derived and the formulae of the control parameters were obtained to determine the stability of its pith/roll motion according to the parameter diagram of Mathieu instability or via numerical simulations. A semi-submersible platform was analyzed to investigate the Mathieu instability conditions. Furthermore, engineering measures on avoiding possible Mathieu instability are proposed and they may be some references for the design of semi-submersible platforms. |
| Keyword | 半潜式平台 垂荡 纵摇 Mathieu不稳定 固有周期 参数共振 |
| Subject Area | 结构优化和可靠性分析 |
| URL | 查看原文 |
| Indexed By | CSCD ; EI |
| Language | 中文 |
| Funding Organization | 国家高技术研究发展计划(863)课题项目(2006AA09A103) |
| CSCD ID | CSCD:4671843 |
| Citation statistics |
Cited Times:6[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46502 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | 王俊荣 |
| Recommended Citation GB/T 7714 | 王俊荣,谢彬. 深水半潜式平台Mathieu不稳定问题研究[J]. 工程力学/ENGINEERING MECHANICS,2012,29,10,:347-353. |
| APA | 王俊荣,&谢彬.(2012).深水半潜式平台Mathieu不稳定问题研究.工程力学/ENGINEERING MECHANICS,29(10),347-353. |
| MLA | 王俊荣,et al."深水半潜式平台Mathieu不稳定问题研究".工程力学/ENGINEERING MECHANICS 29.10(2012):347-353. |
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