Sensitivity analysios of the XR-3 heave equations to changes in plenum air leakage and influx rates
By: Alex Gerba, Jr. and George J. Thaler
Contributors: Thaler, George J.; Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1978
Place of publication: Monterey, California
Language: eng
Number of pages: 89
Subjects: Mathematical models; Hydrofoil boats; Ground-effect machines; Ground-cushion phenomenon
Description: A study of the CABSES vertical plane motions using the 6-D.O.F. Program for the XR-3 craft was performed with various values of air flow rates in order to observe the sensitivity of the craft heave, c. g. acceleration and plenum pressure to variations in air flow rate. The frequency response due to regular and complex seas as well as the transient response due to a weight removal were used to observe the effect of changes in air flow rate. A linear heave-only model is shown to provide useful information concerning the effect of air flow rate on the high frequency characteristics of the XR-3 craft.
Notes: Title from cover.

"Progress report for period ending June 1978."

"September 1978"--Cover.

NPS62-78-008PR"--Cover.

Prepared for: Naval Sea Systems Command (PMS-304), Surface Effect Ship Project Office, P. O. Box 34401, Bethesda, Maryland 20034."

Includes bibliographical references (p. 70).

"Approved for public release; distribution is unlimited"--Cover.

Technical report; 1978.

ck/ oclc 7/7/09.