Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rome.iafcr....y&link_type=abstract
International Astronautical Federation, International Astronautical Congress, 32nd, Rome, Italy, Sept. 6-12, 1981, 12 p.
Astronomy and Astrophysics
Astronomy
Atmospheric Entry, Lift, Planetary Atmospheres, Reentry Trajectories, Time Optimal Control, Trajectory Optimization, Equations Of Motion, Equations Of State, Glide Paths, Space Shuttles, Variational Principles
Scientific paper
Optimal lift modulation for maximum endurance planetary entry trajectories of Shuttle type vehicles is investigated. The force field of the planet is considered Newtonian, and the atmosphere is assumed to be exponential. Motion is confined to the plane of a great circle to obtain maximum endurance, and a set of dimensionless variables and a normalized lift coefficient are used to obtain an overview of the optimal trajectories. The variational problem is reduced to a two-parameter function, and maximum endurance trajectories for a Shuttle reentering the earth atmosphere are derived by integrating the dimensionless state equation with a certain specified initial state. The optimal lift control is also formulated for maximum endurance gliding trajectories of fighter type vehicles at low altitudes and speed, and tends to the value of the steady state solution, the square root of three.
Chern J. S.
Yang Chao Yuan
No associations
LandOfFree
Lift modulation for maximum endurance planetary entry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Lift modulation for maximum endurance planetary entry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lift modulation for maximum endurance planetary entry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1516488