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Optimal trajectories for the aeroassisted flight experiment. part 1: equations of motion in an earth-fixed system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miele, A. Zhao, Z. G. Lee, W. Y. |
| Copyright Year | 1989 |
| Description | The determination of optimal trajectories for the aeroassisted flight experiment (AFE) is discussed. The AFE refers to the study of the free flight of an autonomous spacecraft, shuttle-launched and shuttle-recovered. Its purpose is to gather atmospheric entry environmental data for use in designing aeroassisted orbital transfer vehicles (AOTV). It is assumed that: (1) the spacecraft is a particle of constant mass; (2) the Earth is rotating with constant angular velocity; (3) the Earth is an oblate planet, and the gravitational potential depends on both the radial distance and the latitude (harmonics of order higher than four are ignored); and (4) the atmosphere is at rest with respect to the Earth. Under these assumptions, the equations of motion for hypervelocity atmospheric flight (which can be used not only for AFE problems, but also for AOT problems and space shuttle problems) are derived in an Earth-fixed system. Transformation relations are supplied which allow one to pass from quantities computed in an Earth-fixed system to quantities computed in an inertial system, and vice versa. |
| File Size | 995535 |
| Page Count | 41 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900004125 |
| Archival Resource Key | ark:/13960/t25b50x9p |
| Language | English |
| Publisher Date | 1989-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrodynamics Spacecraft Reentry Orbit Transfer Vehicles Hypersonic Speed Transfer Orbits Spacecraft Control Angular Velocity Aeromaneuvering Orbital Velocity Equations of Motion Atmospheric Entry Flight Mechanics Trajectory Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
