Accession Number:

AD0607775

Title:

THE COUPLED DAMPING COEFFICIENTS OF A SYMMETRIC SHIP.

Descriptive Note:

Research and development rept.,

Corporate Author:

DAVID TAYLOR MODEL BASIN WASHINGTON D C

Personal Author(s):

• Timman,R.
• Newman,J. N.

Report Date:

1962-05-01

Pagination or Media Count:

13.0

Abstract:

A study was made of a floating or submerged body with longitudinal and transverse symmetry, which is moving with constant forward speed and performing small oscillations. The analysis is quite general in the sense that the shape of the body and the nature of the oscillations are unspecified, but it is assumed that the linearized free-surface condition holds. With this assumption the oscillatory velocity potential is found in terms of an unknown Greens function, the existence of which is also assumed. This po tential is then used to show the symmetry properties of the cross-coupling damping coefficients. Author

Descriptors:

• (*SHIPS
• MOTION)
• (*OSCILLATION
• DAMPING)
• PITCH (MOTION)
• GEOMETRIC FORMS
• GREEN S FUNCTION
• BOUNDARY VALUE PROBLEMS
• MATHEMATICAL ANALYSIS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE