Relevant bibliographies by topics / Marine Tethered Systems (MTS)

Academic literature on the topic 'Marine Tethered Systems (MTS)'

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Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Marine Tethered Systems (MTS)"

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Blintsov, Volodymyr, and Kostiantyn Trunin. "Improving the designing of marine tethered systems using the principles of shipbuilding 4.0." Eastern-European Journal of Enterprise Technologies 1, no. 13 (109) (February 26, 2021): 35–48. http://dx.doi.org/10.15587/1729-4061.2021.225512.

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This paper considers the issues and theoretical aspects related to improving the design of maritime tethered systems (MTSs) with flexible links (FLs) using underwater towed systems (UTSs) as an example. That allows them to be used in the early stages of design by implementing the principles of Shipbuilding 4.0 and BIM technologies. Such regimes have not previously been described by existing mathematical models (MMs). The expected result of the current study is a significant decrease in the cost of different resources. At the same time, the basic reliable results of design solutions could be obtained already in the early stages of design. The theoretical basis of the proposed method for improving the design of MTS with FL is the improved design concept (IDC) for MTS with FL while the tool base of the method is a special modeling complex (SMC). The use of IDC along with SMC at the research (pre-prototype) design phase reduces the number of MTS design stages. The proposed method to improve the design of MTS with FL, based on the MM that notates the dynamics of MTS FL and MTS with FL, makes it possible to investigate different modes of operation of almost all MTS classes. That allows devising the recommendations for predicting possible operational loads in order to design their elements. At the same time, there is an opportunity to improve the existing methods for calculating and designing MTS with FL with the required properties and parameters, and to bring them to the level of engineering application. The application of SMC at the pre-prototype design stage makes it possible to avoid the use of physical modeling of the operational regimes of MTS with FL associated with the full-scale testing on the high seas
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Brockerville, Leanne, Caitlin Button, Mark Courish, Stephen Crewe, Gina Doyle, Matthew Follett, Scott Follett, et al. "Technical Report of the Eastern Edge Robotics Team The Marine Institute of Memorial University 2007 MATE/MTS International Robotics Competition, Explorer Class." Marine Technology Society Journal 41, no. 2 (June 1, 2007): 72–82. http://dx.doi.org/10.4031/002533207787442213.

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This report describes the development of the ROV Bartlett, designed and fabricated by the Eastern Edge Robotics Team, Newfoundland & Labrador, Canada. Bartlett was purpose-built for use in the 2007 MATE/MTS International ROV Competition to perform three missions based on the 2007 International Polar Year (IPY) theme. Bartlett has a structural frame of 12.5-mm-thick Lexan™, six (6) orthogonally positioned thrusters providing motion in six degrees of freedom, three (3) tilting, hi-resolution cameras, four (4) variable intensity LED cluster lamps, a waterproof Lexan™ electronics housing and low-compressibility (690 kPa), H-100, “High-load” structural Styrofoam™ encased in fiberglass, forming the flotation. Fiber-optic signal transmission is used in propulsion and tool control, sensor input and video systems. Custom programming using C# incorporates data visualization tools from Dundas Gauge and DirectX. Custom tether is neutrally buoyant in the competition environment. Task-specific tools of original design or application have been fabricated for each mission task. The priority in design was simplicity, low drag, low weight, high efficiency, reliability, and robust materials. The Eastern Edge Robotics Team is a diverse group, comprising 17 students from three academic institutions: Memorial University, the Marine Institute, and the College of the North Atlantic. The polar theme of the 2007 MATE/MTS ROV Competition inspired the team to name their ROV Bartlett after Captain Robert Bartlett, an eminent polar explorer born in the British colony of Newfoundland.
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Tarovik, O. V., A. G. Topaj, A. B. Krestyantsev, and A. A. Kondratenko. "Arctic Marine Transport System Simulation: Multidisciplinary Approach Fundamentals and Practical Experience." Arctic: Ecology and Economy, no. 1(25) (March 2017): 86–101. http://dx.doi.org/10.25283/2223-4594-2017-1-86-101.

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Development of new offshore projects in the Arctic begins with comprehensive analysis of Marine Transport System’s (MTS) performance. At the same time researchers with different professional orientation (shipbuilders, logisticians, economists and managers etc.) are often have narrow view while making their investigations of MTS, focusing mostly at corresponding familiar sides of the system. It leads to specific “disproportional” description of MTS’s when some components considered in detail but other are out of investigation that in some cases may result in inaccurate conclusions. This makes authors sure that the only proper approach to investigate complex arctic MTS should be multidisciplinary. Article contains the description of integrated R&D project fulfilled at State Krylov Research Centre and devoted to realization of multidisciplinary methodology and corresponding software for arctic MTS design and analysis. Integrated software solution is based on object-oriented paradigm and combines such scientific areas as geographic information systems (GIS), shipbuilding disciplines, discrete event and agent-based simulation models. Theoretical base of the solution and its architecture envelops the following subject fields: ship design and fleet sizing, resistance and propulsion of ships including ice-going capabilities, vessel routing in ice, scheduling, downstream and upstream logistics, navigation process simulation, environment conditions stochastic modeling, operation research, queue theory, economy and management. Software has a modular structure with open and expansible architecture, which makes possible to add new functionality and upgrade existing program blocks in accordance with demands of specific project. Simulation model serve as the center of multidisciplinary integration because this technology allows reproducing behavior of different objects of MTS under dynamic conditions. Realized in AnyLogic ® framework simulation model replicates vessel operation process according to individual schedule generated by special planning component. Vessel’s activities simulated in modeled time with consideration of special aspects of operational planning and resolving accidents. Main model also includes specialized sub-models that provide opportunity to describe many local dynamic essences such as processes of offshore drilling and production, freeze-up of channel in fast ice, different ship interaction aspects, “weather windows” in ports etc. Number of instances are also given in the article, they allows to conclude that adequate and consistent model of MTS working in heavy ice-conditions or having complex organization scheme could be obtained only by means of simulation modeling under multidiscipline approach.
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Kourani, Ahmad, and Naseem Daher. "Marine locomotion: A tethered UAV-Buoy system with surge velocity control." Robotics and Autonomous Systems 145 (November 2021): 103858. http://dx.doi.org/10.1016/j.robot.2021.103858.

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Blintsov, V. S., O. P. Klochkov, and P. S. Kucenko. "CLASSIFICATION CHARACTERISTICS OF UNMANNED TETHERED UNDERWATER SYSTEMS AS A COMPONENT OF IMPROVING THE EFFICIENCY OF THEIR DESIGN." Scientific Bulletin Kherson State Maritime Academy 1, no. 22 (2020): 86–98. http://dx.doi.org/10.33815/2313-4763.2020.1.22.086-098.

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The design stage is considered to be rather resource-intensive in the entire process of creating marine robotic technology. Therefore, the applied scientific task of reducing the resource costs for those processes is of high interest. Among other things, the time consumed for design stage has to be reduced by determining the design characteristics at an early stage of design. The approach considered to reduce such costs involves structuring the classification features of tethered underwater systems in such a way as to simplify the selection and justification of design solutions at the stage of preliminary system design. For design engineers of underwater equipment, the list of classification features of tethered self-propelled and those towed underwater systems has been suggested. The list is based on a system approach and is structured according to material, energy, information and operational (functional) criteria. All of that enables performing the comparative assessment of existing systems upon key indicators and formalizing the processes of their synthesis at early stages of design. To demonstrate the capabilities of the system approach, the generalized algorithm for the organization of design works using the system of classification features of tethered self-propelled and towed underwater systems at the early stages of their design. The algorithm involves the formation and structuring of many classification features of such systems as the initial stage of the process of making effective design decisions in the early stages of design of underwater robotics. It has been revealed that putting in use the classification features system in question, enables deploying minimal project resources to make reference to the relevant databases and decide on already-existing artifact projects and select out of those available in the underwater equipment market key components and parts of underwater systems which would satisfy the requirements of the technical task of implementing the tethered underwater systems. That would significantly reduce the prime cost of design works and enhance the competitiveness of domestic science-based achievements in the markets of marine robotics.
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Trunin, Kostyantyn S. "Designing of deck cable winches of marine tethered systems with flexible links by using mathematical models dynamic’s description." Shipbuilding & marine infrastructure, no. 1 (2020): 4–16. http://dx.doi.org/10.15589/smi2020.1(13).1.

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Driscoll, Frederick R., Meyer Nahon, and Rolf G. Lueck. "A Comparison of Ship-Mounted and Cage-Mounted Passive Heave Compensation Systems." Journal of Offshore Mechanics and Arctic Engineering 122, no. 3 (January 29, 2000): 214–21. http://dx.doi.org/10.1115/1.1287167.

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Tethered marine systems experience large tensile loads in their tether when operating in rough seas. Heave compensation systems can be used to reduce these loads and increase the safe operating sea states. In this work, a discrete representation of a passive heave compensator is developed and added to a finite-element model of a deep-sea ROV system to investigate the performance of ship-mounted and cage-mounted compensation systems. Numerical simulations are performed for operating depths ranging from 3280–16,400 ft (1000–5000 m) and a range of compensator stiffnesses. Both ship and cage-mounted systems reduced the natural frequencies, rms cage motion and rms tension, and extended the operating sea state of the ROV. During extreme seas, the cage-mounted compensator effectively eliminated all snap loads. However, the compensator’s characteristics must be carefully chosen because a poorly designed compensator can exacerbate operational problems. [S0892-7219(00)00903-1]
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Adams, Kye, Allison Broad, David Ruiz-García, and Andrew R. Davis. "Continuous wildlife monitoring using blimps as an aerial platform: a case study observing marine megafauna." Australian Zoologist 40, no. 3 (May 1, 2020): 407–15. http://dx.doi.org/10.7882/az.2020.004.

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ABSTRACT Aerial surveys are a powerful means of collecting ecological data in terrestrial and marine systems that may otherwise be difficult to acquire. Increasingly aerial observations are made with Unmanned Aerial Vehicles (UAVs), such as drones. As this technology has improved in reliability and affordability it has replaced the traditional use of fixed-wing aircraft and helicopters. Drones do, however, have limitations; primarily in their limited flight duration, potential to disturb wildlife and concerns over safety. Here we introduce an aerostat, a ground tethered blimp, as a logistically simple and economical alternative to drones and other aircraft. Blimps differ from drones by using helium for lift, thereby conserving battery life. This technology offers the advantage of near-continuous coverage of locations, as well as providing a safe and accessible alternative aerial platform for a range of applications. We demonstrate the viability of blimp-mounted cameras in a notoriously difficult area to conduct research: the high-energy nearshore marine zone. Specifically, we sought to determine the likelihood of encountering marine megafauna using real-time video and whether their presence was correlated with the occurrence of baitfish. Stingrays were observed more often than other species and the occurrence of seals was correlated with the presence of baitfish. The continuous coverage allowed the observation of foraging behaviour in sharks and seals for extended periods. This demonstrates the utility of this novel technique to improve human safety and enhance ecological research.
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Sedunov, Alexander, Hady Salloum, Nikolay Sedunov, Christopher Francis, Sergey Tsyuryupa, Aleksandr Merzhevskiy, Daniel Kadyrov, and Alexander Sutin. "Stevens Passive Acoustic Detection System (SPADES -2) and its prospective application for windfarm underwater noise assessment." Journal of the Acoustical Society of America 151, no. 4 (April 2022): A239. http://dx.doi.org/10.1121/10.0011185.

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Stevens Institute of Technology has been conducting development and field tests of various underwater passive acoustic systems for several years. Several such systems provided localization of boats and divers triangulation. The new version of SPADES has a tethered low-cost bottom-mounted circular 2.2-m underwater acoustic array with eight custom-built hydrophones. The cost of the array was significantly reduced by manufacturing the hydrophones in-house and utilizing a lightweight and low-cost tether. The tether can provide power and communication up to 1 km away and power to the data acquisition. The software has been developed for real-time direction-finding using Steered Power Response Phase Transform (SRP-PHAT) method, combined with region-zeroing (RZ) approach to multi-source separation and custom noise background estimation subtraction. The array was tested for seven months in the shallow and busy waters of the Hudson River tracking small boat activity. The system’s reliability and long tether make it attractive for long-term observation of underwater noise such as monitoring wind farm noise marine mammals and shipping traffic. Direction-finding can help identify noise unrelated to wind farms.
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Simoniello, Christina, Lundie Spence, and Jack Thigpen. "Supporting and Extending the SEACOOS Program: The Extension and Education Work Group." Marine Technology Society Journal 42, no. 3 (September 1, 2008): 35–40. http://dx.doi.org/10.4031/002533208786842525.

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In addition to the observation, collection and analysis of data, Southeast Atlantic Coastal Ocean Observing System (SEACOOS) funding supported the development of a complementary Extension and Education (E&E) component. Extension activities were operated through the Sea Grant Extension Programs of North Carolina, South Carolina, Georgia and Florida. Education activities were channeled through the three Centers for Ocean Sciences Education Excellence in the SEACOOS domain, and the University of Georgia Marine Extension program. E&E Work Group (WG) activities included identifying stakeholders and their needs, increasing awareness of SEACOOS and ocean observing systems in general, and developing concepts for potential products. This article is designed to describe (1) how education and outreach functions were developed with SEACOOS funding to E&E Principal Investigators, (2) the "lessons learned" from the many collaborations, and (3) "best practices" gleaned from the four years of activity funding. Best practices for E&E included defining clearly the target audiences, identifying information needs, providing products appropriate to the audience, designing evaluations with a strong feedback loop, and developing long-term relationships between audiences and providers. This article is one of seven published in this special edition of the MTS Journal to provide a forward-looking discussion of future development of the Southeast Regional Coastal Ocean Observing System (SE RCOOS).
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Dissertations / Theses on the topic "Marine Tethered Systems (MTS)"

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Трунін, К. С., and Kostiantyn S. Trunin. "Математична модель динаміки гнучкого зв’язку морської прив’язної системи з урахуванням впливу кручення гнучкого зв’язку на його силу розтягування." Thesis, 2021. http://eir.nuos.edu.ua/xmlui/handle/123456789/5035.

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Трунін, К. С. Математична модель динаміки гнучкого зв’язку морської прив’язної системи з урахуванням впливу кручення гнучкого зв’язку на його силу розтягування = The mathematical model of flexible link marine tethered system dynamic’s with account of torsion to it tensile force / К. С. Трунін // Матеріали XII міжнар. наук.-техн. конф. "Інновації в суднобудуванні та океанотехніці". – Миколаїв : НУК, 2021. – С. 115–119.
Важливою характеристикою гнучкого зв’язку (ГЗ) є опір крученню, яке виникає від процесу набігання на блок і вигину на блоці, і яке необхідно враховувати в умовах експлуатації. Запропоновано метод визначення векторів узагальнених сил кручення ГЗ. Досліджено вплив від кручення ГЗ на його силу розтягування на конкретних прикладах, у ряді випадків кручення ГЗ помітним чином впливає на характер руху ППС в цілому. Тема розробки ММ динаміки МПС з урахуванням впливу кручення є важливою і актульною.
The important of characteristic of flexible link (FL) is rigidity in bending (RB) which is probability be taken into account at regular service conditions. The elements of rope (wire) by endues testing also tension and bend with torsion. The method of calculation of vectors of generalized of forces of bend of FL was proposed. One of the causes of torsional stresses in the power plant of the Underwater Tethered Systems (UTS) is the interaction with ship equipment, in which the spiral winding on the winch drum, friction on the flanges of the pulleys or winch drums, bends on various blocks and rolls cause torsion. The source of torsional stresses in FL there may by technological reasons related to both the manufacture and storage, transportation and placement on the drooms ship’s winch.
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Conference papers on the topic "Marine Tethered Systems (MTS)"

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Soylu, S., B. J. Buckham, and R. P. Podhorodeski. "Dynamics and control of tethered underwater-manipulator systems." In 2010 OCEANS MTS/IEEE SEATTLE. IEEE, 2010. http://dx.doi.org/10.1109/oceans.2010.5664366.

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PERRY, J., R. VORTHMAN, and R. BURGIO. "Tethered aerostat operations in the marine environment." In 6th Lighter-Than-Air Systems Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-860.

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Ulland, Gunnar, Gunnar Hilsen, and Stefano Croatto. "Mitigating Wellhead Fatigue While Reducing HSE Risk, Deck Spread, Deployment Time, and Crew Size." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31047-ms.

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Abstract Subsea wellhead systems have a design fatigue life that is expected to withstand the damage incurred from stress caused by cyclic loading during its operation. Wellhead fatigue is a critical factor when drilling offshore wells because the condition of the wellhead determines the length of time drilling activities can be carried out safely. The presence of the BOP on top of the wellhead affects fatigue life. Initially, these units were designed for 6-in. and 10-in. diameter casing and weighed slightly less than 1,400 lb. [ASME, 2003) Over time, BOPs evolved, and today's units are considerably larger and heavier than their predecessors, weighing in at approximately 400 metric tons. This increase in size and weight on the wellhead negatively impacts fatigue life. In recent years, the oil and gas industry has begun to look for ways to reduce wellhead fatigue to extend the life of the wellhead and expand the margins for safe drilling operations. A new ROV-operated Wellhead Load Relief (WLR) system, developed specifically to mitigate fatigue, uses special tensioners that are tethered individually to the BOP. Each tensioner contains a hydraulic spooling unit with a lock- and-pull mechanism that allows the ROV to tighten adjustable tethers subsea, pulling them from slack to a maximum tension of 35 metric tons. This approach to installation is a departure from common industry practice, which necessitates the configuration of the predetermined tether lengths on the topside. The ROV-operated WLR system described in this paper is a compact, high-capacity BOP tethering system suitable for both template and seabed anchoring. It provides a new and efficient way of tethering the BOP to avoid wellhead fatigue and delivers additional benefits that include minimized HSE risk, a smaller deck spread, decreased deployment time, and a smaller crew. The WLR system was operated subsea for the first time in December 2019. By precisely tensioning each tether and limiting the load transferred to the wellhead, the WLR significantly lessened wellhead fatigue, resulting in an almost complete halt in BOP movement. This new technology enables the operator to make optimal use of the fatigue life of the wellhead without compromising efficiency or safety.
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Flory, John F., Stephen J. Banfield, Isabel M. L. Ridge, Ben Yeats, Tom Mackay, Pengzhu Wang, Tim Hunter, Lars Johanning, Manuel Herduin, and Peter Foxton. "Mooring systems for marine energy converters." In OCEANS 2016 MTS/IEEE Monterey. IEEE, 2016. http://dx.doi.org/10.1109/oceans.2016.7761007.

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Filisetti, Andrew, Andreas Marouchos, Andrew Martini, Tara Martin, and Simon Collings. "Developments and applications of underwater LiDAR systems in support of marine science." In OCEANS 2018 MTS/IEEE Charleston. IEEE, 2018. http://dx.doi.org/10.1109/oceans.2018.8604547.

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Schoonmaker, J., Y. Podobna, C. Boucher, J. Sofianos, D. Oakley, D. Medeiros, and J. Lopez. "The utility of automated Electro-Optical systems for measuring marine mammal densities." In 2010 OCEANS MTS/IEEE SEATTLE. IEEE, 2010. http://dx.doi.org/10.1109/oceans.2010.5664431.

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Kaeli, Jeff, Gwyneth Packard, Matt Grund, Carl Fiester, Judson Poole, Dara Tebo, and Mike Purcell. "Online Summaries as a Framework for Perception and Planning in Marine Robotic Systems." In OCEANS 2019 MTS/IEEE SEATTLE. IEEE, 2019. http://dx.doi.org/10.23919/oceans40490.2019.8962754.

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Lukaczyk, Trent, Tamaki Bieri, Joao Tasso de Sousa, Joshua Levy, and Philip A. McGillivary. "Unmanned aircraft as mobile components of Ocean Observing Systems for management of marine resources." In OCEANS 2016 MTS/IEEE Monterey. IEEE, 2016. http://dx.doi.org/10.1109/oceans.2016.7761485.

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Deese, Joe, Peyman Razi, Michael Muglia, Praveen Ramaprabhu, and Chris Vermillion. "Fused Closed-Loop Flight Dynamics and Wake Interaction Modeling of Tethered Energy Systems." In ASME 2018 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dscc2018-9190.

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In this paper, we present a fused flight dynamics and wake interaction modeling framework for arrays (farms) of tethered wind and marine hydrokinetic energy systems. The replacement of conventional towers with tethers necessitates a dynamic model that captures the flight characteristics of each system, whereas the arrangement of the systems in an array necessitates a wake interaction model. The integration of these components is unique to the tethered energy systems literature and is applicable to both airborne wind energy systems and tethered marine hydrokinetic energy systems. In the application case study of this paper, we focus specifically on arrays of ocean current turbines (OCTs), which are intended to operate in the deep waters of the Gulf Stream, adjacent to the eastern coast of the United States. In particular, we evaluate the dynamic performance and resulting projected energy output of an array of tethered OCTs, based on real Gulf Stream resource data from an acoustic Doppler current profiler (ADCP) located adjacent to Cape Hatteras, North Carolina.
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Cardoso, Cristiano Bernabé, Magno Almeida da Silva, João Marcelo Mussi Baptista, Janaína Barreto Santos, Sérgio Carlos Kupski, Otávio Caniçali, Matheus Rodrigues Resende, Daniel Costa, Danielle Rocha, and Marcos Vinícius Sampaio Santiago. "Challenges and Lessons Learned on the First Use of Tethered Bop in a Major Operator in Brazil, Including the Replacement of the Tension System Using the Rig Drilling String." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31859-ms.

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Abstract The use of the tethered BOP at Petrobras intends to enable the operation of Dynamically Positioned Rigs in shallow waters, allowing drilling or workover in wells in congested areas or subject to environmental restrictions due to corals or marine fauna. The BOP tethering technology also allows the use of newer generation rigs, whose BOPs are larger and heavier, in old wells not designed for such loads. ROV and surface images of the critical moments for the BOP tethering show the lessons learned in this operation, such as schematics and drawings of improvements implemented or suggested for future opportunities. During the operations, many opportunities for improvement were identified, such as: the ideal drilling schedule to launch the anchors with the Anchor Handling Tug Supply Vessel (AHTS); the imprisonment of the cables by the cement of the surface casing in the mud line; the knots that occurred in the cable after replacing the tensioner system; the feasibility to use the rig drill string instead of an RSV to replace the tensioner; and the need of unlatching the BOP to replace the tensioner system, with suggestions to avoid this in the future. The challenges overcome in this operation allowed the development of new solutions and procedures for tethering the BOP, dispensing with the use of a RSV, and improving the contractor's initial procedure. The success of this system enables rig operations in several locations that are currently unfeasible, whether for plug & abandonment of old wells or for drilling new locations in shallow water. The first use of tethered BOP in association with real-time Riser Analysis in Brazil resulted in the reduction of the risk associated with an emergency disconnection, providing a larger operational window and a more accurate analysis of well structure fatigue.
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