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ucin1061303791.pdf (433.79 KB)
ETD Abstract Container
Abstract Header
ADAPTIVE IMPROVEMENT OF CLIMB PERFORMANCE
Author Info
GODBOLE, AMIT ARUN
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1061303791
Abstract Details
Year and Degree
2003, MS, University of Cincinnati, Engineering : Aerospace Engineering.
Abstract
One key element in improving air traffic capacity and efficiency is the ability of the air traffic management system to predict accurately the future position of a vehicle along a standard route. Perhaps the most challenging problem in the current practice is to predict accurately the altitude profile of an aircraft during the ascent phase of flight. During the ascent, the vehicle performance is extremely sensitive to uncertainties in the vehicle weight, thrust and piloting procedures, none of which are currently known to air traffic controller whose job is to merge this departure aircraft into an en route stream of traffic. This thesis work investigates the use of adaptive control techniques to improve climb performance prediction. The aim is to accurately predict time to ‘top of climb’ in the ascending phase of aircraft trajectory. The study is conducted in support of the CTAS air traffic control software, which is in development at NASA Ames Research Center in California. This investigation consists of a comparison between actual departure trajectories for MD80 type of aircraft and the results of MATLAB-based numerical simulation attempting to duplicate the measured energy rate and hence the trajectory during the climb phase. The technical approach taken in this thesis is to start with initial a priori models of aerodynamics and engine thrust. The thrust dependency is adapted based on the observed and calculated energy rates of the vehicle. The results indicate that this adaptive model can greatly improve climb performance prediction.
Committee
Dr. Gary Slater (Advisor)
Pages
117 p.
Subject Headings
Engineering, Aerospace
Keywords
air traffic management
;
trajectory prediction
;
adaptive control
;
thrust adaption
;
rate of climb
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Citations
GODBOLE, A. A. (2003).
ADAPTIVE IMPROVEMENT OF CLIMB PERFORMANCE
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1061303791
APA Style (7th edition)
GODBOLE, AMIT.
ADAPTIVE IMPROVEMENT OF CLIMB PERFORMANCE.
2003. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1061303791.
MLA Style (8th edition)
GODBOLE, AMIT. "ADAPTIVE IMPROVEMENT OF CLIMB PERFORMANCE." Master's thesis, University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1061303791
Chicago Manual of Style (17th edition)
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Document number:
ucin1061303791
Download Count:
959
Copyright Info
© 2003, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.