Date of Award
Master of Science
Department of Aeronautics and Astronautics
William Wiesel, PhD
This study investigated the ability to control the chaotic reentry of a Delta-Clipper like vehicle by setting the values of initial arid final principal dynamical directions as well as the Lyapunov exponents. A model of the original controlled reentry vehicle was created through the use of the equations of motion in conjunction with an atmospheric model. A modified linear quadratic regulator allowed the set up of a boundary value problem which specified the Lyapunov exponents and determined the gain matrix as a function of time. The gain matrix can eventually be used in the control system of the vehicle.
DTIC Accession Number
Platt, Michael H., "Full Lyapunov Exponent Placement in Reentry Trajectories" (1995). Theses and Dissertations. 6120.