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Precision Navigation For Hull Crawling Robots - Efficient Robots For Automated Grooming

Picture for Precision Navigation For Hull Crawling Robots - Efficient Robots For Automated Grooming
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The impacts of marine biofouling to the maritime and naval communities, as well as the planet as a whole are well documented. Whether its increased fuel consumption and carbon emissions, transport of invasive species, or that it just plain looks bad, marine biofouling needs to be addressed more aggressively, be that timely removal of growth, or increased monitoring of hull condition to know when it’s time for removal. Current methods of removing growth are costly both in time and money, potentially environmentally unfriendly and risk impacting the health of the ship’s coating system.

Product Number: 51322-17660-SG
Author: Karl Lander
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
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This paper describes how advances in autonomous navigation on a vessel hull, coupled with remote vehicle control can enable routine and efficient hull grooming and inspection. Emerging technology allows for the use of smaller robots, with minimal industrial support and significantly reduced manpower requirements, making grooming accessible, both practically and financially. The advancing technologies enabling this capability include hull relative navigation, sonar feature based detection, and long-range stand-off command and control. The advancement and intersection of these technologies will enable the habitual and frequent efforts required for grooming to be successful.

This paper describes how advances in autonomous navigation on a vessel hull, coupled with remote vehicle control can enable routine and efficient hull grooming and inspection. Emerging technology allows for the use of smaller robots, with minimal industrial support and significantly reduced manpower requirements, making grooming accessible, both practically and financially. The advancing technologies enabling this capability include hull relative navigation, sonar feature based detection, and long-range stand-off command and control. The advancement and intersection of these technologies will enable the habitual and frequent efforts required for grooming to be successful.

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The corrosion of aircraft costs the U.S. Department of Defense billions of dollars annually and accounts for a significant portion of maintenance time and costs.1 Coatings are the most effective way to protect aircraft, but they have a finite lifetime and must be maintained or replaced before the underlying substrate is damaged by corrosion. Current aircraft maintenance practices call for coating inspections and maintenance based on elapsed time and not on measurements of coating health. Coating lifetime varies depending on the environmental stressors experienced in service, including temperature, humidity, and salt loading.
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