Pacific Northwest Section Hears Paper On Application Of Seakeeping Analysis
Ninety members and guests of the Pacific Northwest Section of The Society of Naval Architects and Marine Engineers recently attended a regular meeting held in Pier 91 Officers' Club, Seattle, Wash.
After dinner, a technical paper titled "Application of Seakeeping Analysis" was presented by Bruce L. Hutchison and J. Thomas Bringloe, naval architect and vice president, respectively, of L.R.
Glosten & Associates Inc.
The authors stated that the basic purpose of the paper is to utilize the theoretical tool of modern seakeeping analysis in an approach to the solution of some shipboard engineering problems.
Deterministic and stochastic processes were explained, the latter being the current vehicle for the study of seakeeping, the historical development of which was traced from Sir Isaac Newton to the present state-of-the-art.
The study, analysis and prediction of ship motions takes place in the time, frequency and probability domains which are analagous to the different projections of the same object as drawn by the draftsman, each revealing salient features not observable in others.
The above theory incorporates the use of tabulations of observed sea states as reported by ships.
Several excellent publicly available, high-speed, computer programs are used by the practicing engineer at moderate cost which, together with his own post processing program, will manipulate the basic response data into forms which directly answer his questions.
Ship motions program "SCORES" and post processing program "CARGO" are being utilized by the authors.
In conclusion, the application of the foregoing analytical tool has been used by the authors' company in providing the best engineering techniques involving peculiar cargo stowage problems for such items as process plant modules or drilling platforms.
Other applications are the development of operating instructions or design criteria for ballasting of vessels, design analysis of heavy lift arrangements with particular reference to offshore construction operations, sailing instructions for a particular voyage or even real-time routing during the voyage. These are but a few of the potential applications for seakeeping analysis.
Copies of the paper can be obtained from the Section Librarian, C.S. Bracken, P.O. Box 24382, Seattle, Wash. 98124.
Other stories from March 1978 issue
- Pacific Far East Line To Sell Three Vessels page: 4
- Lockheed Launches Second Of Three 23,000-Ton Submarine Tenders page: 6
- Planning Research Corporation Wins $1.6-Million Contract To Modernize Army Watercraft page: 7
- Planning Research And Morris Guralnick Work On $500,000 Project page: 8
- Propeller Symposium Slated For May 1978 At Virginia Beach, Va. page: 10
- B&W To Transfer Control Of German Nuclear Firm To Brown Boveri Group page: 10
- CAI Appoints Gerald Harrison VP And Director Of Engineering page: 11
- Literature Describes Matched Systems Of Navigational Aids page: 11
- Sun Names Martinson Program Manager For Matson Containership page: 14
- Gamlen Chemical Names Kevin Smith Great Lakes Sales Rep page: 14
- Litton Exhibits New Load Monitoring System page: 16
- Pacific Northwest Section Hears Paper On Application Of Seakeeping Analysis page: 16
- Northwest Marine Iron Works Awarded $8-Million Navy Contract page: 18
- C.F. Bean Names John Lescroart VP For Washington Office page: 22
- Arab Shipbuilding And Repair Yard Officially Inaugurated At Bahrain page: 22
- Maritime Industry Impact On Nation's Economy Shown In MarAd Report page: 23
- ASNE Flagship Section Hears Dr. Thomas Cooper On Military R&D Programs page: 26
- Santa Fe Drilling Names Parry Manager All Drilling Rigs page: 26
- Sun Ship Lands Contract To Construct 720-Foot Containership For Matson Navigation page: 27
- Culpepper And Renehan Announces Formation Of New Steamship Agency page: 27
- SNAME Chesapeake Section Discusses Steering, Maneuvering And Controllability Of Surface Ships page: 27
- Planning Navigation/Communication Conference To Be Held In New York March 21, 22 And 23 page: 28
- Red Fox Announces New Type Marine Sanitation Device page: 29
- 'The Seaborne Transportation Of Liquefied Natural Gas 1977-1985 —Trades, Costs And Revenues' page: 32
- Bird-Johnson Company Appoints Alan Hanson page: 33
- International Ocean Transport Corporation Names Joseph Kearney page: 33
- Gotaas-Larsen Names Nyholm Executive VP page: 34
- Nimmo Named President Baker Marine Engineers page: 34
- LNG Docking Facility Contract Awarded To Raymond International page: 35
- Anastassios Fondaras Elected Chairman Tuned Sphere Int'l page: 36
- Goodwin And Ritchie Named Vice Presidents By Cleveland Tankers page: 38
- Economical Gas Turbine Paper Presented At ASNE Meeting In Groton page: 39
- Literature Available On Galbraith-Pilot Marine Packaged System Concept page: 39
- Hofmeister Named VP Flexi-Van Leasing, Inc. page: 40
- Bearing Condition Checked By New SPM Technique page: 40
- Lucian Q. Moffitt Names National Marine Enterprises page: 41
- Timmons & Charles, Inc. Appoints George Mahaly page: 41
- Nicolai Joffe Corp. Offers Brochure On Replacement Machinery page: 41
- Dr. Irene Peden Named To Kings Pt. Advisory Board page: 42
- Sydney Tharrington Elected President Marine Square Club page: 43
- Los Angeles Marine Societies Annual Joint Meeting page: 43
- MarAd Releases Report On Feasibility Of Exporting Slurried Coal page: 44
- DeLaval Appoints Foltz General Manager For Middle East page: 44
- Moran Appoints Capt. McVay —Names William Watt Assistant page: 47
- Capt. Stream And L.R. Glosten Form M.A. Stream Associates page: 48
- DeLaval Names Scordo Turbine And Compressor Division Sales Manager page: 49
- Richard M. Currence Named President Pott Offshore Division page: 49
- Ocean Fleets Limited Appoints Steven And Adams page: 50
- Port Of Palm Beach Building $4,500,000 Sugar Terminal page: 50