Accession Number:

AD0745014

Title:

Contributions on the Problem of Ship Vibration.

Descriptive Note:

Final rept.,

Corporate Author:

IOWA INST OF HYDRAULIC RESEARCH IOWA CITY

Personal Author(s):

• Landweber,Louis

Report Date:

1972-06-01

Pagination or Media Count:

11.0

Abstract:

Contributions to three problems of ship vibrations, a added masses of two-dimensional ship sections including horizontal vibrations at a free surface, b three-dimensional corrections to strip theory, and c three-dimensional theory for vibration in a liquid, presented in a series of 16 papers, are briefly summarized. If strip theory is used, it is preferable to determine the added mass of a ship section by conformal mapping than by matching against families of forms of known added mass. If natural frequencies at higher modes are required, the three-dimensional vibration theory, which essentially replaces the added-mass vector of strip theory by an added-mass matrix, should be employed. Author

Descriptors:

• *SHIPS
• *VIBRATION
• EXPERIMENTAL DATA
• HYDRODYNAMICS
• MATHEMATICAL MODELS
• PROBLEM SOLVING
• MARINE ENGINEERING

Subject Categories:

• Marine Engineering
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE