首页> 外文会议>OCEANS >Experimental research on horizontal rotation of ROV induced by external forces near sea surface

【24h】

Experimental research on horizontal rotation of ROV induced by external forces near sea surface

机译：海面外力诱导ROV水平旋转的实验研究

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

A remotely operated vehicle (ROV) is lowered by means of an underwater cable from a vessel. The ROV near the sea surface is forced to rotate due to external forces. So, we focused on the waves and the wake flow of thrusters as possible causes of the external forces. And we conducted experiments using a model of the ROV in a tank. Two kinds of experiments were conducted. One is to investigate the influence of the waves. The experiments were conducted by changing a wave height, a wave length and a submerged depth of the model. And configuration of the model such as the type of fins and outer covers were also changed. The other is to investigate the influence of the wake flow of the thrusters. The experiments were conducted by changing a horizontal offset of a propeller and the submerged depth of the model. And the type of the fins was also changed. As a result, the horizontal rotation was observed in some cases. It is found that the wave and the wake flow were possible causes inducing the horizontal rotation of the ROV. According to the results, the wave characteristics influence on the generation of the horizontal rotation. The offsets and the submerged depth influence on the generation of the horizontal rotation in the wake flow as well. It is also found that a horizontal fin and extended vertical fins will be one of the countermeasures to improve the characteristics of the horizontal rotation.

机译：通过来自血管的水下电缆降低了远程操作的车辆（ROV）。海面附近的ROV被迫由于外力而旋转。所以，我们专注于波浪和推进器的唤醒流动，以及外力的可能原因。我们使用坦克中的罗夫模型进行了实验。进行了两种实验。一个是调查波浪的影响。通过改变模型的波长，波长和浸没深度来进行实验。还改变了诸如翅片类型和外盖的类型的模型的配置。另一种是研究推进器的唤醒流动的影响。通过改变螺旋桨的水平偏移和模型的浸没深度来进行实验。并且还改变了鳍的类型。结果，在某些情况下观察到水平旋转。发现波和唤醒流动可能导致诱导ROV的水平旋转。根据结果，波特征对水平旋转的产生影响。偏移和浸没深度对唤醒流动中的水平旋转产生的影响。还发现水平翅片和延伸的垂直翅片将是提高水平旋转特性的对策之一。

著录项

来源
《OCEANS》|2008年||共6页
会议地点
作者
Inoue T.; Suzuki H.; Shimamura T.; Nakajima K.; Shioji G.;
展开▼
作者单位

展开▼
会议组织
原文格式 PDF
正文语种
中图分类 P75-53;
关键词

相似文献

外文文献
中文文献
专利

1. Experimental Research on Horizontal Rotation of Remotely Operated Vehicles Induced by External Forces Near the Surface of the Ocean [J] . Tomoya Inoue, Hiroyoshi Suzuki, Tsuyoshi Shimamura, Marine Technology Society journal . 2009,第3期

机译：海洋表面附近外力引起遥控船水平旋转的实验研究
2. Elbow joint stability in relation to forced external rotation: An experimental study of the osseous constraint. [J] . Deutch SR, Jensen SL, Olsen BS, Journal of shoulder and elbow surgery . 2003,第3期

机译：肘关节相对于强迫外旋的稳定性：骨约束的实验研究。
3. Performance of experimental horizontal subsurface-flow-constructed wetlands treating river water: effect of substrate, configuration, hydraulic retention time, temperature and external carbon source [J] . Lu Lijun, Huang Xiangfeng, Liu Xin, Desalination and water treatment . 2015,第9期

机译：实验水平地下流动构造湿地处理河水的性能：基质，构造，水力停留时间，温度和外部碳源的影响
4. Experimental research on horizontal rotation of ROV induced by external forces near sea surface [C] . Inoue T., Suzuki H., Shimamura T., OCEANS 2008 . 2008

机译：海面外力引起的遥控潜水器水平旋转实验研究
5. Post-tillage dynamics of soil structural and hydraulic properties induced by capillary forces and external loading. [D] . Ghezzehei, Teamrat Afewerki. 2001

机译：毛细作用力和外部载荷引起的土壤结构和水力特性的耕后动力学。
6. Disruption of TGF-β Signaling Improves Ocular Surface Epithelial Disease in Experimental Autoimmune Keratoconjunctivitis Sicca [O] . Cintia S. De Paiva, Eugene A. Volpe, Niral B. Gandhi, 2011

机译：TGF-β信号的中断改善眼表上皮疾病实验性自身免疫性干燥性角结膜炎
7. The oceans mediate the response of global climate to natural and anthropogenic forcings. Yet for the past 2,000 years — a key interval for understanding the present and future climate response to these forcings — global sea surface temperature changes and the underlying driving mechanisms are poorly constrained. Here we present a global synthesis of sea surface temperatures for the Common Era (ce) derived from 57 individual marine reconstructions that meet strict quality control criteria. We observe a cooling trend from 1 to 1800 ce that is robust against explicit tests for potential biases in the reconstructions. Between 801 and 1800 ce, the surface cooling trend is qualitatively consistent with an independent synthesis of terrestrial temperature reconstructions, and with a sea surface temperature composite derived from an ensemble of climate model simulations using best estimates of past external radiative forcings. Climate simulations using single and cumulative forcings suggest that the ocean surface cooling trend from 801 to 1800 ce is not primarily a response to orbital forcing but arises from a high frequency of explosive volcanism. Our results show that repeated clusters of volcanic eruptions can induce a net negative radiative forcing that results in a centennial and global scale cooling trend via a decline in mixed-layer oceanic heat content. [O] . McGregor, Helen V., Evans, Michael N., Goosse, Hugues, 2015

机译：海洋调节了全球气候对自然和人为强迫的响应。然而，在过去的2,000年中（这是了解当前和未来气候对这些强迫的响应的关键间隔），全球海表温度变化及其潜在的驱动机制受到的约束很有限。在这里，我们提出了一个共同的时期（ce）的全球海面温度的全球综合，该综合来自57个符合严格质量控制标准的海洋重建项目。我们观察到从1到1800 ce的冷却趋势，对于显式测试重建中潜在的偏倚而言，该趋势很稳健。在801至1800 ce之间，表面降温趋势在质量上与地面温度重建的独立合成以及从使用过去外部辐射强迫的最佳估计的气候模型模拟集合推导出的海面温度合成在质量上是一致的。使用单一和累积强迫的气候模拟表明，从801到1800 ce的海洋表面冷却趋势主要不是对轨道强迫的反应，而是爆炸性火山爆发的频繁发生。我们的结果表明，火山喷发的反复簇可引起净的负辐射强迫，这会导致混合层海洋热量降低而导致百年和全球规模的降温趋势。
8. Force Structure: Navy Needs to Fully Evaluate Options and Provide Standard Guidance for Implementing Surface Ship Rotational Crewing;Report to the Congress [R] . 2004

机译：部队结构：海军需要全面评估选项并为实施水面舰船旋转船员提供标准指导;向国会提交报告

Experimental research on horizontal rotation of ROV induced by external forces near sea surface

摘要

著录项

相似文献

相关主题

期刊订阅