Show simple item record

dc.contributor.advisorHealey, Anthony J.
dc.contributor.authorLogsdon, Mary J.
dc.dateJune 1992
dc.date.accessioned2012-11-29T16:14:00Z
dc.date.available2012-11-29T16:14:00Z
dc.date.issued1992-06
dc.identifier.urihttp://hdl.handle.net/10945/23602
dc.description.abstractThe problem of roll, sway and yaw motions of surface ships is considered. A mathematical model is developed which consists of the nonlinear maneuvering equations and incorporates cross coupling between sway force, yaw moment and the roll angle induced during a steady turn. The hydrodynamic derivatives and coefficients of a typical container ship were used as the base-line study model. The coupled system of nonlinear algebraic equations is formulated and solved to predict the steady state roll angle, sway velocity and turning rate as a function of the rudder angle. The results are then compared to that of the decoupled systems currently employed. A local perturbation is implemented in the vicinity of the above steady states to investigate dynamic stability of motion. Sensitivity analysis with respect to important design parameters such as speed loss during turning, approach speed, transverse metacentric height and trim is performed. Results demonstrate the significance of the coupling between roll, sway and yaw and the need to incorporate similar studies in the ship design and analysis process.
dc.description.urihttp://archive.org/details/coupledrollnddir1094523602
dc.format.extent105 p.;28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.titleCoupled roll and directional stability characteristics of surface ships.en_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.subject.authorsurface ship
dc.subject.authordirectional stability
dc.subject.authorcoupled roll
dc.description.serviceLieutenant, United States Navy
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.nameDegree of Mechanical Engineeren_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.levelProfessional Degreeen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record