AN INVESTIGATION OF THE SENSITIVITY AND THE LINEARITY OF RESPONSE OF A STEERED SHIP.
Abstract
The change of ship response in a zig-zag maneuver due to a small variation of each of the coefficients in the equations of motion was obtained. The degree of the response change, and therefore the sensitivity, is expressed by a non-dimensional parameter. Abkowitz's mathematical model with Chislett and Strom-Tejsen's data for the Mariner class ship are used for this purpose. The nonlinear equations are solved using a numerical technique. Both a dynamically stable and unstable ship were investigated by these techniques. The linear relationship between ship yawing and a harmonic rudder oscillation was found by a specially developed experimental technique. The test results were compared with the theoretical computations of the semi-empirical method. Excellent agreement between experiment and theoretical prediction was obtained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0651994
Entities
People
- Hsao-hsin Chen
Organizations
- University of California, Berkeley