Paper On Real Time Monitoring Presented At Pacific Northwest SNAME
At the spring meeting in Vic- toria, British Columbia, Canada, the Pacific Northwest Section of The Society of Naval Architects and Marine Engineers heard two papers. "Experience with Real Time Motion Monitoring on the Barge Foss 245," presented by Robert E. Nichol of Diehl & Lundgaard, Inc. and Bruce L.
Hutchison of L.R. Glosten & Associates, Inc., was followed by "Selection and Design of Hydraulic Systems Including Arctic Operation," by Karl H. Strauss of Western Hydrostatic System Ltd.
The Real Time Motion Paper was brought about by the shipment by barge of a 240-ton failed steam generating unit from the Surry, Va., nuclear power plant in the spring of 1980, which provided an opportunity to apply modern state-of-the-art motion monitoring and damage avoidance techniques to a towed ocean barge. This paper reports on: (1) The project background, including pre-voyage risk analysis which resulted in the recommendation that real time motion monitoring be provided; (2) The design and installation of the motion monitoring system; and (3) The tug master's experience during the voyage with the real time motion feedback. The paper concludes by comparing selected motion records from the motion monitoring system to motion predictions based on log book and hindcast sea state data.
It was concluded that the real time motion monitoring worked well on the subject barge shipment, and achieved the primary objective of providing useful feedback to the tug master concerning the effects of his actions on the barge and cargo. It was suggested that the technique is sufficiently promising to warrant wider use by the offshore tug/ barge industry.
The Selection and Design paper was broken into five parts: hydraulics and the arctic environment; key features and capabilities; hydraulic system structure; components—selection and recommendations; and fluids, materials causes and effects. The first four sections of this paper provide a practical guide to the different hydraulic system types, their capabilities and applications.
The last section deals more with the theory and principles involved, upon which some of the recommendations made are based.
The material covered is primarily based on hydrostatic systems for northern climates; however, the principles covered apply to most systems in all environments.
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Content
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- Robert Ware Establishes His Own Maritime Public Relations Service page: 7
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- Wartsila Turku Shipyards Delivers Superferry 'Silvia Regina' page: 8
- U.S. Combat Systems In Foreign Built Ships Topic At ASNE Meeting page: 8
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- Gems Paddle Switches Monitor Flow Conditions —Literature Available page: 9
- Eller & Company Acquires Uiterwyk Cold Storage page: 9
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- First Of New Destroyer Class Commissioned At Ingalls Yard page: 10
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- National Steel Lays Keel For U.S. Navy Cable Repair Vessel page: 10
- Major Work On 'Wavertree' Performed By Bethlehem Yard page: 11
- Marathon Introduces New Super 300 Jackup For Harsh Environments page: 12
- Paper On Real Time Monitoring Presented At Pacific Northwest SNAME page: 12
- Second Crandali Dock At National Sea Products Yard Rebuilt And Enlarged page: 12
- Dravo Acquires The Ryan-Walsh Group page: 13
- Union Oil Products Carrier Launched At NASSCO Yard page: 14
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- Shipyard Conference Honors Past Chairmen McKay And Pirozzolo page: 28
- HUDSHIP To Build Four Big Towing/Supply Vessels For Zapata page: 29
- U.S. And Canada Agree To Cooperate In Marine Transportation R &D page: 34
- Philadelphia Resins' New Brochure Describes The Company And Its Products page: 34
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- Lima Electric Announces New Model Alternator- Literature Available page: 35
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- Great Lakes/Great Rivers SNAME Spring Meeting Held In Cleveland page: 36
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- Partnership Between AMCA International & McDermott Formally In Business page: 36
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- Ned Smith Named Vice President-Finance For American Steamship page: 42
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- First Large-Scale Floating Seawater Desalination Plant Launched At Nordseewerke page: 44
- Multipurpose Cargo Vessel Launched At GHH Sterkrade Yard page: 44
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