NDLI: Station Keeping Adaptive Control of a Boat With Twin Gasoline Outboard Motors: Synthesis, Simulation and Sea-Trials

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Fisher, Aaron Vanzwieten, James Nikolaos, I. Xiros
Copyright Year	2011
Abstract	There are increasingly more areas in which automatic station keeping technology can be of great benefit for small boat operators. This trend stems from technological advances that allow for smaller and more portable instrumentation and gear, bringing down the necessary size of vessels, which ultimately reduces cost. However, smaller vessels find themselves more adversely affected by sea conditions and have limited thrusting capabilities. Currently a skilled captain is needed on these small vessels to hold position over the area of interest in the presence of wind, wave, and current disturbances. Implementation of an automatic station keeping controller would free the captain from constantly monitoring the navigational instruments, to more closely supervise onboard operations and keep watch for other vessels in the area. Station keeping technology is currently being perused by Florida Atlantic University to enhance the ability of its 33ft boat to make oceanographic measurements in the Gulf Stream pertinent to its ocean energy projects. Such ocean energy projects require water velocity and temperature measurements at specific locations as part of the efforts for assessment of the hydrokinetic and ocean thermal resource. This technology is also a pivotal part of the sea basing goal currently being pursued by the Navy, which would allow vessels to stay in close but acceptable proximity to one another. The ability to hold position over a desired location can also have many additional uses such as for fishing, conducting surveys, deploying instruments, and transferring cargo or personnel. This text presents a novel approach for doing station keeping, as thus far a system for station keeping on small vessels using only tied twin outboard motors has not been developed and applied to an ocean going vessel by industry or academia. These controllers have been developed using multiple fixed-gain and adaptive control algorithms. Using a custom sensor and control system mounted onboard the test vessel; navigational measurements are used to adjust the throttles and engine angle using these developed algorithms. The performance of each of these controllers has been quantified using both numerical simulations and at sea testing. Using the results from these tests, initial comparisons have been made that show the advantages gained by using adaptive control algorithms instead of fixed-gain control.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	647
Ending Page	655
Page Count	9
File Format	PDF
ISBN	9780791844380
DOI	10.1115/OMAE2011-49827
Volume Number	Volume 6: Ocean Engineering
Conference Proceedings	ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2011-06-19
Publisher Place	Rotterdam, The Netherlands
Access Restriction	Subscribed
Subject Keyword	Ocean energy Water Seas Oceans Computer simulation Atlantic ocean Boats Vessels Control equipment Motors Instrumentation Control systems Adaptive control Engines Wind waves Temperature measurement Navy Algorithms Gears Simulation Gasoline Sensors Testing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Station keeping of small outboard-powered boats

Validation of a Deterministic Wave and Ship Motion Prediction System

A Ballast System for Automated Deep-Sea Ascents

Extreme Waves of Sea Storms

Adaptive control of small outboard-powered boats for survey applications

Station-Keeping Trials in Ice: Ice and Metocean Conditions

Wind and Wave Climate in Open Sea and Coastal Waters

Developing Non-Gasoline Burning Outboard Motors for the UK MoD

The ENDECO Type 1120 Station Keeping Buoy

Station Keeping Adaptive Control of a Boat With Twin Gasoline Outboard Motors: Synthesis, Simulation and Sea-Trials

Similar Documents

Station keeping of small outboard-powered boats

Validation of a Deterministic Wave and Ship Motion Prediction System

A Ballast System for Automated Deep-Sea Ascents

Extreme Waves of Sea Storms

Adaptive control of small outboard-powered boats for survey applications

Station-Keeping Trials in Ice: Ice and Metocean Conditions

Wind and Wave Climate in Open Sea and Coastal Waters

Developing Non-Gasoline Burning Outboard Motors for the UK MoD

The ENDECO Type 1120 Station Keeping Buoy

Station Keeping Adaptive Control of a Boat With Twin Gasoline Outboard Motors: Synthesis, Simulation and Sea-Trials