Control of hypersonic flight trajectories to minimize heat load
General Material Designation
[Thesis]
First Statement of Responsibility
S. S. A. K. J. Nizami
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date of Publication, Distribution, etc.
1994
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
185
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
M.S.
Body granting the degree
King Fahd University of Petroleum and Minerals (Saudi Arabia)
Text preceding or following the note
1994
SUMMARY OR ABSTRACT
Text of Note
This work studies optimized controls which minimize the heat load at the stagnation point of an ascending hypersonic flight vehicle. Two types control schemes are studied, namely, a polynomial type of feedback controller and a neural controller. To validate the results obtained a comparison is made with precious analytical and numerical studies. Different cases are then studied by considering the specific impulse of the SCRAM-Jet engine as a constant or varying with Mach no. The effect of variation of initial and final attitudes is also studied. The results show that the minimized heat load is in the range of 300-350kJ/cm2 in general. It is also observed that the proposed neural controller performs well.