Accession Number:

ADA232630

Title:

Ship Vibration Design Guide

Descriptive Note:

Final rept.

Corporate Author:

NOONAN (EDWARD F) ANNAPOLIS MD

Personal Author(s):

Report Date:

1989-07-01

Pagination or Media Count:

343.0

Abstract:

It is the purpose of this design guide to integrate existing technology into the ship development program in a manner consistent with commercial ship design philosophies. The approach is based on experience and relies on empirical factors, where necessary. Weaknesses in the procedures are identified and recommendations for further development are indicated. This guide addresses the major components over which we have the ability to exercise control in the design phase, and which will generally minimize most local vibration problems. These components include the hull girder, major structural elements, main propulsion systems including propeller selection, stern design and underwater appendages. Excitation forces, including those generated by propulsion systems and the operational environment that a ships propeller and hull girder experience, are addressed in this guide. Transient excitation resulting from heavy seas and collision impact are not addressed in this document. A procedure to determine the natural frequencies of major shipboard elements at the preliminary design stage is presented to predict anticipated problems and facilitate selection of propulsion system components, stern configuration and hull structure.

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE