Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Rajiv S. Chowdhry"'
Publikováno v:
Journal of Guidance, Control, and Dynamics. 17:1345-1349
The capability of the HL-20 lifting-body spacecraft to perform an abort maneuver from the launch pad to a horizontal landing was studied. This study involved both piloted and batch simulation models of the vehicle. A point-mass model of the vehicle w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64f25800ac993ff659d53d034ff4a354
https://doi.org/10.2514/3.21354
https://doi.org/10.2514/3.21354
Publikováno v:
Journal of Guidance, Control, and Dynamics. 14:383-390
Optimal rigid-body angular motions are investigated in the absence of direct control over one of the angular velocity components. A numerical survey of first-order necessary conditions for optimally reveals that, over a range of boundary conditions,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3339ffc5e558f0225ed0609181cbf6c
https://doi.org/10.2514/3.20650
https://doi.org/10.2514/3.20650
Publikováno v:
AIAA Guidance, Navigation, and Control Conference and Exhibit.
The optimal cruise trajectory for a detail designed hypersonic waverider vehicle is determined. Two possible local extrema are found representing the steady state and periodic cruise trajectories. The optimal steady state cruise is determined by mini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ae337b72fdbf47c597fbf0742864d71
https://doi.org/10.2514/6.2006-6563
https://doi.org/10.2514/6.2006-6563
Publikováno v:
AIAA Guidance, Navigation, and Control Conference and Exhibit.
A new methodology is developed to optimize the aero surfaces using model center tools in rapid conceptual design (RCD) environment. The objective function is based on minimizing the total aero surfaces weight while meeting the trim requirements and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daf7832778a60fdc215b66b107ece440
https://doi.org/10.2514/6.2002-4662
https://doi.org/10.2514/6.2002-4662
Publikováno v:
AIAA Guidance, Navigation, and Control Conference and Exhibit.
A new optimization technique was used to aide in the selection of aerodynamic surfaces and Thrust Vectoring Control (TVC) based on maximizing control margin during ascent and entry portions of the trajectory. In order to meet the mass fraction requir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9d75dd1239dcd437d78850bdd5fef8e
https://doi.org/10.2514/6.2000-3962
https://doi.org/10.2514/6.2000-3962
Publikováno v:
Flight Simulation and Technologies.
The capability of the HL-20 lifting body spacecraft to perform an abort maneuver from the launch pad to a horizontal landing was studied at NASA Langley Research Center. This study involved both piloted and batch simulation models of the vehicle. A p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11aa3164b2ea6d319705e785ac4fc035
https://doi.org/10.2514/6.1993-3690
https://doi.org/10.2514/6.1993-3690
Publikováno v:
AlAA 4th International Aerospace Planes Conference.
Applicability and effectivness of robust control techniques to a single-stage-to-orbit (SSTO) airbreathing hypersonic vehicle on an ascent accelerating path and their effectivness are explored in this paper. An SSTO control system design problem, req
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f40200fcb5b694eee16a3903a02d9ee1
https://doi.org/10.2514/6.1992-5010
https://doi.org/10.2514/6.1992-5010
Publikováno v:
3rd International Aerospace Planes Conference.
A tool which supports integrated assessment of air-breathing hypersonic vehicle trajectory management and control strategy has been developed by Hattis and Malchow (1991). Using a two-point boundary value problem solution technique, the tool can cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e28f21e1fe3271651bd9b73ed45376
https://doi.org/10.2514/6.1991-5052
https://doi.org/10.2514/6.1991-5052
Autor:
Frederick H. Lutze, Rajiv S. Chowdhry
Publikováno v:
Guidance, Navigation and Control Conference.
Optimal rigid body angular motions are investigated in the absence of direct control over one of the angular velocity components. A numerical survey of first order necessary conditions for optimality reveals th'at over a large range of boundary condi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0429492e8f18abe62cdfbcec52268522
https://doi.org/10.2514/6.1989-3616
https://doi.org/10.2514/6.1989-3616