Home eBooks Download › decomposition technique and optimal trajectories for the aeroassisted flight experiment

Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment

Download Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment

DOWNLOAD
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-06

Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-06 with categories.

An actual geosynchronous Earth orbit-to-low Earth orbit (GEO-to-LEO) transfer is considered with reference to the aeroassisted flight experiment (AFE) spacecraft, and optimal trajectories are determined by minimizing the total characteristic velocity. The optimization is performed with respect to the time history of the controls (angle of attack and angle of bank), the entry path inclination and the flight time being free. Two transfer maneuvers are considered: direct ascent (DA) to LEO and indirect ascent (IA) to LEO via parking Earth orbit (PEO). By taking into account certain assumptions, the complete system can be decoupled into two subsystems: one describing the longitudinal motion and one describing the lateral motion. The angle of attack history, the entry path inclination, and the flight time are determined via the longitudinal motion subsystem. In this subsystem, the difference between the instantaneous bank angle and a constant bank angle is minimized in the least square sense subject to the specified orbital inclination requirement. Both the angles of attack and the angle of bank are shown to be constant. This result has considerable importance in the design of nominal trajectories to be used in the guidance of AFE and aeroassisted orbital transfer (AOT) vehicles. Miele, A. and Wang, T. and Deaton, A. W. Unspecified Center...

Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment

DOWNLOAD
Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-11-03

Decomposition Technique And Optimal Trajectories For The Aeroassisted Flight Experiment written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-03 with Science categories.

Optimal Trajectories For The Aeroassisted Flight Experiment Part 4

DOWNLOAD
Author : National Aeronautics and Space Adm Nasa
language : en
Publisher:
Release Date : 2018-11-17

Optimal Trajectories For The Aeroassisted Flight Experiment Part 4 written by National Aeronautics and Space Adm Nasa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-17 with categories.

The determination of optimal trajectories for the aeroassisted flight experiment (AFE) is discussed. Data, tables, and graphs relative to the following transfers are presented: (IA) indirect ascent to a 178 NM perigee via a 197 NM apogee; and (DA) direct ascent to a 178 NM apogee. For both transfers, two cases are investigated: (1) the bank angle is continuously variable; and (2) the trajectory is divided into segments along which the bank angle is constant. For case (2), the following subcases are studied: two segments, three segments, four segments, and five segments; because the time duration of each segment is optimized, the above subcases involve four, six, eight, and ten parameters, respectively. Presented here are systematic data on a total of ten optimal trajectories (OT), five for Transfer IA and five for Transfer DA. For comparison purposes and only for Transfer IA, a five-segment reference trajectory RT is also considered. Miele, A. and Wang, T. and Lee, W. Y. and Wang, H. and Wu, G. D. Unspecified Center AEROASSIST; ASCENT; OPTIMIZATION; TRAJECTORIES; APOGEES; GRAPHS (CHARTS); PERIGEES; TABLES (DATA)...