Ship Vibration Symposium Set For Oct. 16-17 In Arlington, Va.

An international Ship Vibration Symposium will be held at the Sheraton National Hotel in Arlington, Va., near Washington, D.C., on Monday and Tuesday, October 16-17, 1978. The symposium will be jointly sponsored by the interagency Ship Structure Committee and The Society of Naval Architects and Marine Engineers. This is the second in the scheduled series of symposia jointly sponsored by these two organizations, following the highly successful Ship Structures Symposium held in October 1975.

The purpose of this symposium is to bring together representatives of the maritime community, including ship operators, builders, designers, researchers and governmental and classification bodies to discuss all aspects of ship vibration, noise and hull/machinery incompatibility. The emphasis of the symposium will be the interfaces between hull structure, hydrodynamics, machinery and man. Within the past decade, a dramatic growth in the size and installed horsepower of vessels has taken place. The impact of shipboard problems has also increased substantially, due to the high capital costs of new vessels. During these years, substantial progress and developments have taken place in the vibration and noise fields. It is now time for these technological problems and new advances to be discussed in an open forum with all those engaged in ship design, construction and operation.

An enjoyable social program is also planned to enhance the technical benefits of the symposium. The registration fee for all persons attending the symposium will be approximately $80. This will include a reception on Sunday evening, luncheons on Monday and Tuesday, coffee during the technical sessions, and the reception/banquet on Monday evening. Also included will be a bound copy of the proceedings of the symposium.

The preliminary technical program is as follows: "State of the Art for Shipboard Vibration and Noise Control," E.F. Noonan and S. Feldman, NKF Engineering Associates, Inc.; "Vibration from a Shipbuilders Point of View," R.D. Glasfeld and D.C. MacMillan, General Dynamics; "The Considerations of Vibration and Noise at the Preliminary and Contract Levels of Ship Design," Naresh M. Maniar and John C. Daidola, M. Rosenblatt & Son, Inc.; "Vibration and the Ship Operator," G. Steele, International Ocean Transport Corp.; "Noise and Vibration as Viewed by the Maritime Unions," F. Schamann, Marine Engineers Benevolent Association; "Costs of Vibration and Noise Problems," F.J. Dashnaw, Maritime Administration, and J. Femenia, Webb Institute of Naval Architecture.

"Noise Prediction and Prevention in Ships," A.C. Nilsson, Det norske Veritas; "Hydrodynamic Aspects Related To Propeller- Induced Ship Vibrations," S. Hylarides and P. van Oossanen, Netherlands Ship Model Basin; "Propeller Unsteady Pressure Forces on Ships," W.S. Vorus, University of Michigan ; "Interaction and Compatibility Between Machinery and Hull from Static and Vibratory Point of View," G.C. Volcy, Bureau Veritas; "Systematic Experiments to Determine the Influence of Skew on Hull Vibratory Excitation Due to Transient Cavitation," J.E. Kerwin, S.D. Lewis, and S. Kobayashi, Massachusetts Institute of Technology; "Highly Skewed Propellers—Full Scale Test Results, Vibration and Economic Considerations," N.O. Hammer and R.F. McGinn, Maritime Administration.

"The Application of Acoustic-Suppression Material to a Ship Service Turbine," F.A.

Thoma, DeLaval Turbine Div., DeLaval Corp.; "Approaches to Noise Exposure," S. Wehr, U.S. Coast Guard; "Propeller and Wave-Induced Hull Structure Vibrations," S.G. Stiansen, American Bureau of Shipping; "Computer Techniques for Use in Ship Hull Vibration Analysis and Design," F.E. Reed, Littleton Research and Engineering Corp.; "Vibration Instrumentation Utilized by the David W. Taylor Naval Ship Research and Development Center," Dawson, Brown and Shaver, David W. Taylor Naval Ship Research and Development Center; "Vibration Signature Analysis as a Preventative Maintenance Tool Aboard Ship," J. Catlin, IRD Mechanalysis, Inc.

Panel Discussion—A blue-ribbon panel representing industry and government.

General chairman of the Symposium Committee is Norman O. Hammer, and co-chairmen of the technical program are William W. Wood and Jacques B. Hadler. Meeting arrangements are in charge of Ralph Johnson, Warren C. Dietz, R.W. Rumke, Theodore W. Chapman, Steven H. Davis, Thomas H. Robinson, and E.A. Chazal Jr.

For those persons interested in attending the symposium, or for further details, write to: Lt. Comdr. Steven H. Davis, USCG, Registration Chairman, Ship Vibration Symposium '78, c/o U.S. Coast Guard Headquarters (G-DSA-1/TP44), Washington, D.C.

20590.

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