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Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

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Nội dung chi tiết: Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control y of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree ofDoctor of Philosophy InAerosp

ace EngineeringGomel Sultan. Chan Craig A. Woolsey Mayuresh J. Patil Bernard FerrierMarch 21. 2016 Blacksburg. VirginiaKeywords: Helicopter Shipboard Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

Operations. Ocean Current Turbines. Model Predictive Control. Output Variance Constrained. Mixed Integer Quadratic ProgrammingCopyright 2016. Tn D. Ng

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

oConstrained C ontrol for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTn D. NgoABSTRACTThis dissertation focuses on

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control del predictive control (MPC) framework for helicopter shipboard operations in high demanding sea-based conditions. A complex helicopter-ship dynamics

interface has been developed as a system of implicit nonlinear ordinary differential equations to capture essential characteristics of the nonlinear h Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

elicopter dynamics, the ship dynamics, and the ship airwake interactions. Various airwake models such as Control Equivalent Turbulence Inputs (CETI) m

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

odel and Computation Fluid Dynamics (CFD) data of the airwake are incorporated 111 the interface to describe a realistic model of the shipbome helicop

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control and lateral reposition toward rhe ship in different wind-over-deck conditions. To improve the overall MPC performance, an updating scheme for the inte

rnal model of the MPC is proposed using linearization around operating points. A mixed-integer MPC algorithm is also developed for helicopter precisio Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

n landing on moving decks. The performance of this control structure IS evaluated via numerical simulations of the automatic deck landing ill adverse

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

conditions such as landing on up-stroke, and downstroke moving decks with high energy indices. Kino-dynamic motion plaiuiing for coordinated maneuvers

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control ution IS that a new’ idea IS leveraged from helicopter blade control by introducing cyclic blade pitch control in OCT. A minimum energy, constrained c

ontrol method, namely Output Variance Constrained (OVC) control is studied for OCT flight control in the presence of external disturbances. The minimu Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

machievable output variance bounds arc also computed and a parametric study of design parameters is conducted to evaluate then influence on the ovc pe

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

rformance. The performance of the ovc control method is evaluated both on the linear and norrlurear oc 1 models. Furthermore. control design for the O

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control satisfaction of multiple constraints and to avoid blade stall.liiAcknowledgementsI would like to thank several people who made this research possible.

First. I would like to express my deepest gratitude to my advisor Dr. Cornel Sultan foi his continued support and guidance. I would like to thank for Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

mer and current members of my doctoral committee Dr. Craig Woolsey. Dr. Mayuresh Patil. Dr. Bernard Ferrier. Dr. Alexander Leonessa. and Dr. Leigh McC

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

ue for then constructive comments. I would like to thank Vietnam Education Foundation for providing me with opportunity and financial support to pursu

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control at Virginia Tech for their financial support to my Summer I&II in 2015.1 would also like to thank Di . Nguyen Thien Tong who encouraged and helped me

a lot to apply to the Ph D program in the U.S.As a member of the multi-institutional collaborative research group. I would like to thank National Scie Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

nce Foundation (NSF) for their support of the pioject “Optimized Harvesting of Hydrokinetic Power by Ocean Current Turbines Farms using Integrated Con

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

trol’ under grant number NSF ECCS-1308168.1 owe special thanks to Di James VanZwieten of the Florida Atlantic University. Dr. Nikolas Xiros of the Uni

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control tment of Aerospace & Ocean Engineering. Virginia Tech for her administrative help. I would also like to thank my labmates Ipar Ferhat. Javier Gonzalez

-Rocha. Mar ia Rye. Praneeth Sudalagunta. and Shu Yang for the friendship. Thanks also to my Vietnamese friends in Blacksburg: Chuong Nguyen. Jerry' N Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

guyen. Van Tran. Hanli Truong. Truong Nguyen. Song Hong, who made my student life in the U.S more colorftil and joyful.Lastly. I am very grateful to m

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

y parents for then tremendous amount of love and support over the years.ivDedication to my Dad. Neo All. my Mom. Trail Tin Duom. my brothers. Ngo Cong

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained control for helicopter shipboard operations and moored ocean current turbine flight control ..............................................xiNomenclature..................................................................xiiChapter 1: Introducti

on.........................................................11.1Literature Reviews......................................................21.2Objectives Constrained control for helicopter shipboard operations and moored ocean current turbine flight control

and Roadmap.................................................151.3Statement of Contributions.............................................17

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

Constrained Control for Helicopter Shipboard Operations and Moored Ocean Current Turbine Flight ControlTri D. NgoDissertation submitted to the faculty

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