X 33

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X 33 Advanced Technology Demonstrator Vehicle Program Ca Ut Wa

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Author :
language : en
Publisher:
Release Date : 1997

X 33 Advanced Technology Demonstrator Vehicle Program Ca Ut Wa written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.

Reconfigurable Flight Control Designs With Application To The X 33 Vehicle

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Author : John J. Burken
language : en
Publisher:
Release Date : 1999

Reconfigurable Flight Control Designs With Application To The X 33 Vehicle written by John J. Burken and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Flight control categories.

Two methods for control system reconfiguration have been investigated. The first method is a robust servomechanism control approach (optimal tracking problem) that is a generalization of the classical proportional-plus-integral control to multiple input-multiple output systems. The second method is a control-allocation approach based on a quadratic programming formulation. A globally convergent fixed-point iteration algorithm has been developed to make onboard implementation of this method feasible. These methods have been applied to reconfigurable entry flight control design for the X-33 vehicle. Examples presented demonstrate simultaneous tracking of angle-of-attack and roll angle commands during failures of the right body flap actuator. Although simulations demonstrate success of the first method in most cases, the control-allocation method appears to provide uniformly better performance in all cases.

Design And Calibration Of The X 33 Flush Airdata Sensing Fads System

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Author : Stephen A. Whitmore
language : en
Publisher:
Release Date : 1998

Design And Calibration Of The X 33 Flush Airdata Sensing Fads System written by Stephen A. Whitmore and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Aerodynamic measurements categories.

Dynamic Inversion Based Adaptive Reconfigurable Control Of The X 33 On Ascent

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Author : David B. Doman
language : en
Publisher:
Release Date : 2002

Dynamic Inversion Based Adaptive Reconfigurable Control Of The X 33 On Ascent written by David B. Doman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Space vehicles categories.

A quaternion-based attitude control system is developed for the X-33 in the ascent flight phase. A nonlinear control law commands body-axis rotation rates that align the angular velocity vector with an Euler axis defining the axis of rotation that will rotate the body-axis system into a desired-axis system. The magnitudes of the commanded body rates are determined by the magnitude of the rotation error. The commanded body rates form the input to a dynamic inversion-based adaptive/reconfigurable control law. The indirect adaptive control portion of the control law uses online system identification to estimate the current control effectiveness matrix to update a control allocation module. The control allocation nominally operates in a minimum deflection mode; however, if a fault is detected, it can operate in a null-space injection mode that excites and decorrelates the effectors without degrading the vehicle response to enable online system identification. The overall 5 stem is designed to provide fault and damage tolerance for the X-33 on ascent.

Space Transportation Status Of The X33 Reusable Launch Vehicle Program Report To Congressional Requesters

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Author :
language : en
Publisher: DIANE Publishing
Release Date :

Space Transportation Status Of The X33 Reusable Launch Vehicle Program Report To Congressional Requesters written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.

Development Of The X 33 Aerodynamic Uncertainty Model

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Author : Brent R. Cobleigh
language : en
Publisher:
Release Date : 1998

Development Of The X 33 Aerodynamic Uncertainty Model written by Brent R. Cobleigh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Aerodynamics categories.

X 33 Computational Aeroheating Aerodynamic Predictions And Comparisons With Experimental Data

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Author : Brian Ray Hollis
language : en
Publisher:
Release Date : 2003

X 33 Computational Aeroheating Aerodynamic Predictions And Comparisons With Experimental Data written by Brian Ray Hollis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Aerothermodynamics categories.

Reconfigurable Control Design For The Full X 33 Flight Envelope

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Author : M. Christopher Cotting
language : en
Publisher:
Release Date : 2001

Reconfigurable Control Design For The Full X 33 Flight Envelope written by M. Christopher Cotting and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Flight control categories.

X 33 Rev F Turbulent Aeroheating Results From Test 6817 In Nasa Langley 20 Inch Mach 6 Air Tunnel And Comparisons With Computations

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Author : Brian R. Hollis
language : en
Publisher:
Release Date : 2003

X 33 Rev F Turbulent Aeroheating Results From Test 6817 In Nasa Langley 20 Inch Mach 6 Air Tunnel And Comparisons With Computations written by Brian R. Hollis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Aerothermodynamics categories.

X 33 Rev F Aeroheating Results Of Test 6770 In Nasa Langley 20 Inch Mach 6 Air Tunnel

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Author : Scott A. Berry
language : en
Publisher:
Release Date : 1999

X 33 Rev F Aeroheating Results Of Test 6770 In Nasa Langley 20 Inch Mach 6 Air Tunnel written by Scott A. Berry and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aerodynamics, Hypersonic categories.