OCEANS'11 MTS/IEEE KONA最新文献_第9页

The modern challenge of domestic deepwater drilling 国内深水钻井的现代挑战

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6106910

E. Zimmerman, Gai-Lynn E. Marshall

引用次数: 0

Optimal design of AUV endcaps 水下航行器尾帽优化设计

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107304

S. Koh, Sang-young. Jung, Nam Jae Lee

引用次数: 1

Experimental investigation of inter-array wake properties in early tidal turbine arrays 早期潮汐能水轮机阵间尾流特性实验研究

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107150

L. Myers, B. Keogh, A. Bahaj

{"title":"Experimental investigation of inter-array wake properties in early tidal turbine arrays","authors":"L. Myers, B. Keogh, A. Bahaj","doi":"10.23919/OCEANS.2011.6107150","DOIUrl":"https://doi.org/10.23919/OCEANS.2011.6107150","url":null,"abstract":"Full-scale marine current energy converter devices have now been operational for several years. These devices have the potential to provide large scale electricity generation when placed in farms/arrays in areas of fast flowing tidal currents. Now the full-scale concept has been proven experienced operators are in a position to provide array developers with devices for such applications, thus at present the first tidal arrays are in the planning and consenting stage around the globe. The inter-device spacing within these arrays can have a profound effect both on the flow field through the array itself and the on the surrounding environment. This paper describes a set of scale experiments aimed at investigating the interaction of devices within an array and potentially highlight some of the pitfalls of future array design which may result in sub-optimal device operation. Experimental results presented herein indicate that particular spacing can lead to regions of accelerated flow which may be exploited to provide greater power production. Further examination of this accelerated flow region is presented, with discourse surrounding the potential issues of placing devices in this region, and impacts the on array geometries as a whole are discussed.","PeriodicalId":19442,"journal":{"name":"OCEANS'11 MTS/IEEE KONA","volume":"9 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74354047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Using high-resolution ocean timeseries data to give context to long term hydrographic sampling off Port Hacking, NSW, Australia 使用高分辨率的海洋时间序列数据，为澳大利亚新南威尔士州黑克港的长期水文采样提供背景

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107032

M. Roughan, B. Morris

{"title":"Using high-resolution ocean timeseries data to give context to long term hydrographic sampling off Port Hacking, NSW, Australia","authors":"M. Roughan, B. Morris","doi":"10.23919/OCEANS.2011.6107032","DOIUrl":"https://doi.org/10.23919/OCEANS.2011.6107032","url":null,"abstract":"Through the development of the NSW node of the Australian Integrated Marine Observing System (NSW-IMOS). A mooring array of 4 moorings has been developed off the coast of Sydney, Australia, providing more than 2 years of timeseries data on the Sydney shelf. Parameters measured include velocity and temperature, salinity, fluorescence, dissolved oxygen and turbidity. This moored timeseries data complements the more than 70 year time series (since 1942) of physical sampling at the Port Hacking (Sydney, Australia) 50 m and 100 m sites, by providing spatial and temporal context. In this paper we investigate the relationship between the monthly vertical CTD profiles and the high temporal resolution moored timeseries, specifically the sub-monthly variability in the temperature and salinity observations. For the first time we have a timeseries of optical signals at two sites which can be used to give spatial and temporal context to the monthly biogeochemical and phytoplankton record from the physical samples. We assess the significance of sub monthly variability relative to the annual signal. We also identify issues with the optical signals obtained from the Wetlabs WQMS that appear as a result of moving to an operational phase of the program where instruments are rotated frequently.","PeriodicalId":19442,"journal":{"name":"OCEANS'11 MTS/IEEE KONA","volume":"55 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74466801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Prediction of gravity installed anchors installation penetration 预测重力安装锚的安装贯入

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107022

Chunyong Nie, J. Shelton

引用次数: 11

Opportunities to parallelize path planning algorithms for autonomous underwater vehicles 自主水下航行器路径规划算法并行化的机遇

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107121

M. Eichhorn, U. Kremer

{"title":"Opportunities to parallelize path planning algorithms for autonomous underwater vehicles","authors":"M. Eichhorn, U. Kremer","doi":"10.23919/OCEANS.2011.6107121","DOIUrl":"https://doi.org/10.23919/OCEANS.2011.6107121","url":null,"abstract":"This paper discusses opportunities to parallelize graph based path planning algorithms in a time varying environment. Parallel architectures have become commonplace, requiring algorithm to be parallelized for efficient execution. An additional focal point of this paper is the inclusion of inaccuracies in path planning as a result of forecast error variance, accuracy of calculation in the cost functions and a different observed vehicle speed in the real mission than planned. In this context, robust path planning algorithms will be described. These algorithms are equally applicable to land based, aerial, or underwater mobile autonomous systems. The results presented here provide the basis for a future research project in which the parallelized algorithms will be evaluated on multi and many core systems such as the dual core ARM Panda board and the 48 core Single-chip Cloud Computer (SCC). Modern multi and many core processors support a wide range of performance vs. energy tradeoffs that can be exploited in energy-constrained environments such as battery operated autonomous underwater vehicles. For this evaluation, the boards will be deployed within the Slocum glider, a commercially available, buoyancy driven autonomous underwater vehicle (AUV).","PeriodicalId":19442,"journal":{"name":"OCEANS'11 MTS/IEEE KONA","volume":"229 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77590740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

The stingray AUV: A small and cost-effective solution for ecological monitoring 黄貂鱼AUV:一种小型且经济高效的生态监测解决方案

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107153

C. Barngrover, R. Kastner, Thomas Denewiler, Greg Mills

{"title":"The stingray AUV: A small and cost-effective solution for ecological monitoring","authors":"C. Barngrover, R. Kastner, Thomas Denewiler, Greg Mills","doi":"10.23919/OCEANS.2011.6107153","DOIUrl":"https://doi.org/10.23919/OCEANS.2011.6107153","url":null,"abstract":"Underwater vehicles have recently become more useful in ecological monitoring, largely in part to advanced processing capabilities enabled by modern computers. Most underwater vehicles are torpedo shaped and non-holonomically controlled, which makes them efficient, but they lack precise maneuverability. Some cube-shaped vehicles are used when more exact navigation is necessary; however they cannot take advantage of gliding motions and hydrodynamic lift as their vehicles have a large amount of drag. The Stingray Autonomous Underwater Vehicle (AUV) is a compact, lightweight AUV with a unique design implementation. The hull of the Stingray is a carbon fiber shell with a biomimetic design reminiscent of its ocean-dwelling namesake. This streamlined profile provides very low drag and allows the vehicle to glide through the water. The Stingray also uses a unique propulsion system, combining three vertical thrusters on the wings and tail for roll and pitch with two Voith-Schneider propellers mounted underneath for yaw and surge. In addition, these two propellers provide the ability to strafe, allowing the vehicle to move with six degrees of freedom. This enables the Stingray to easily maneuver at slow speeds and hover in a similar fashion to a helicopter, while also being able to take advantage of the lift generated by its wings to glide like a fixed-wing aircraft.","PeriodicalId":19442,"journal":{"name":"OCEANS'11 MTS/IEEE KONA","volume":"11 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77656141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Wave climate in the Southern Great Barrier Reef, Australia - Evaluation of an ocean HF radar system and WaveWatch3 澳大利亚大堡礁南部的波浪气候——海洋高频雷达系统和WaveWatch3的评估

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107042

Jasmine B. D. Jaffrés, M. Heron

引用次数: 5

Design and control of 2kW class power takeoff unit for rotating body type wave energy converter 转体型波能转换器2kW级功率起飞装置的设计与控制

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6106961

Dong-Soon Yang, Byung-Hak Cho, Shin-Yeol Park, Kyung-Sik Choi

引用次数: 2

Reproduction of an actual sea and ship motion using the all-round wave generator 使用全方位波浪发生器再现真实的海洋和船舶运动

OCEANS'11 MTS/IEEE KONA Pub Date : 2011-12-19 DOI: 10.23919/OCEANS.2011.6107026

M. Ueno, Hideki Miyazaki, H. Taguchi, Y. Kitagawa, Y. Tsukada

引用次数: 0