Pacific Northwest Section, SNAME, Holds Annual Meeting In Union, Washington
The Annual Meeting of the Pacific Northwest Section of The Society of Naval Architects and Marine Engineers was held at the Alderbrook Inn, Union, Wash., during the weekend of October 13- 15, 1978. The meeting was attended by more than 100 members and guests.
Friday evening's informal buffet provided an opportunity to renew old acquaintances.
Saturday's session began with a short business meeting conducted by president Paul Zankich.
Following the business meeting, two technical papers were presented.
The authors were introduced by Bob Van Slyke, chairman of the Papers Committee.
The first paper, "Shaft Alignment Methods with Strain Gages and Load Cells," was prepared and presented by Robert B. Grant of Diehl and Lundgaard, Incorporated.
Everyone involved in shipbuilding is very much aware of the need for accurate shaft alignment and the traditional methods of insuring alignment. These procedures can be very difficult and timeconsuming on larger vessels. The paper presents improved methods for assuring shaft alignment.
The author specifically examines the use of load cells incorporated into a jacking mechanism, either under the bearings or in place of the bearing shells. An alternative moment method of shaft alignment is also explained. This method offers several advantages over the jack-checking procedure where conditions aboard the vessel dictate its use.
In the end, the method used to align the shaft will be determined by the direct cost associated with each procedure and the availability of measuring instruments.
The second paper, "Vibrations —Some Other Aspects," was written by L. Coward and Dr. R.J.
Savage of Savage and Heierli- Canada, a division of CCS Marine Associates Ltd. The paper was presented by Mr. Coward.
This paper describes several ways in which resonant vibration analysis under controlled circumstances can become a useful tool for information acquisition and system analysis. Of particular interest are the applications of this technique in structural monitoring and problem diagnosis.
The vibration analysis technique is based on the fact that every structure has its own characteristic "vibration signature." Using a number of accelerometers placed on the structure and vibration generators, this "vibration signature" can be determined for the structure. If these measurements are repeated at a later time, any deterioration of the structure will be recorded in the vibration signature measured at that time.
Using this analysis technique, fine resolution in detecting initial failures, such as hairline cracks, is possible. Left uncorrected, these initial failures may develop into a more serious structural failure.
A question and answer period followed presentation of the papers.
In the evening, a banquet was held at the Alderbrook Inn. Prof.
Francis Ogilvie, chairman of the Naval Architecture Department at the University of Michigan, was the featured speaker. He discussed the current state of the Naval Architecture Department at Michigan.
Copies of the technical papers can be obtained from the Section Librarian, C.S. Bracken, P.O. Box 24382, Seattle, Wash. 98124, for a nominal fee.
Other stories from December 15, 1978 issue
- Veritas Guide Shows Docking Facilities For 200,000-DWT Ships page: 4
- J.J. Henry Co., Inc. Promotes Victor Chen page: 7
- Genstar And British Shipbuilders To Bid For CAF Patrol Frigates page: 7
- 1978 SNAME Annual Meeting Cites Role In Maritime Industry Progress page: 9
- American Bureau Of Shipping Moves Its Headquarters To 65 Broadway In New York City page: 11
- Ship Structure Committee Publishes Two Reports On Strength Of Materials page: 12
- Kenneth M. Jones Elected President Offshore Logistics, Inc. page: 12
- J. Ray McDermott & Co. Elects Eight Officers page: 13
- L N G - L P G Conference Set For Houston, Texas November 13-16, 1979 page: 13
- Sun Ship Awarded $137.5 Million To Build Two Ships For Waterman page: 14
- Halter Marine Delivers Supply Boat To Brazil page: 16
- Port Weller Awarded $10-Million Conversion page: 16
- IMODCO Establishes Far East Marketing Office page: 16
- General Dynamics7 Innovative Method Of Launching Submarines page: 17
- Seaward, Inc. Promotes Michael K. Kutzleb page: 18
- Union Mechling Corp. Names Ronald Olander page: 18
- Selby, Battersby & Co.'s N e w Flooring C o m b i n e s U n i q u e S a f e t y Features page: 19
- Amerada Hess To Build Five Catug Units At Cost Of $283,800,000 page: 20
- J.J. Henry Co., Inc. Names Gerald Jones Manager Portsmouth, Va. Office page: 20
- Savannah Machine And Shipyard Awarded $2.6-Million Contract page: 22
- Reno Spiteri Opens O f f i c e In M a l t a page: 23
- A r g o N a m e s Nietsch To Pollution Control Post page: 23
- ITT Mackay Marine Hosts Product Display And Discussion On Key Marine Communication And Navigation Issues page: 25
- Pacific Northwest Section, SNAME, Holds Annual Meeting In Union, Washington page: 26
- SeaTec International Appoints Samuel Rugh page: 27
- London To Host Two-Day Conference On Ship Propulsion page: 27
- ASNE Long Beach-Greater Los Angeles Section Discusses Corrosion Protection And Control page: 30
- El Paso Savannah Christened At Avondale Shipyards In New Orleans Joins A Fleet Of Nine LNG Tankers page: 30
- Sixth International LNG Conference Invites Proposals For Papers page: 32
- Crowley Environmental Services Appoints Operations Supervisor page: 32
- SNAME California Sections Hold Annual Joint Meeting page: 32
- Fourth Chesapeake Sailing Yacht Symposium Set For January 20 page: 34
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- American Steamship Company Elects Three Executives To Vice Presidential Posts page: 37
- Zapata Commissions Latest Of Workboats Supporting Atlantic Coast Exploration page: 37
- New 500-Ton Crandall Railway Drydock For Fairhaven, Massachusetts page: 38
- SNAME Scholarships For Graduate And Undergraduate Levels page: 39
- lotron Corporation Merges With Varo, Inc. page: 40
- New England Sections Of ASNE And MTS Discuss Submersibles page: 41
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- Joseph L. Waldvogel Joins Soros Associates page: 42
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