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Model Predictive Control For Ascent Load Management Of A Reusable Launch Vehicle

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Model Predictive Control For Ascent Load Management Of A Reusable Launch Vehicle

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Author : Andrew Allen Martin
language : en
Publisher:
Release Date : 2002-06-01

Model Predictive Control For Ascent Load Management Of A Reusable Launch Vehicle written by Andrew Allen Martin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-06-01 with categories.

During the boost phase of ascent, winds have a significant impact on a launch vehicle's angle of attack, and can induce large structural loads on the vehicle. Traditional methods for mitigating these loads involve measuring the winds prior to launch and designing trajectories to minimize the vehicle angle of attack (0). The current balloon-based method of collecting wind field information produces wind profiles with significant uncertainty due to the inherent time delays associated with balloon measurement procedures. Managing the mission risk caused by these uncertain wind measurements has always been important to control system designers. This thesis will describe a novel approach to managing structural loads through the combination of a Light Detection and Ranging (LIDAR) wind sensor, and Model Predictive Control (MPC). LIDAR wind sensors can provide near real-time wind measurements, significantly reducing wind uncertainty at launch. MPC takes full advantage of this current wind information through a unique combination of proactive control, con-traint integration and tuning flexibility. This thesis describes the development of two types of MPC controllers, as well as a baseline controller representative of current control methods used by industry. A complete description of Model Predictive Control theory and derivation of the necessary control matrices is included. The performance of each MPC controller is compared to that of the baseline controller for a wide range of wind profiles from both the Eastern and Western U.S. Test Ranges. Both MPC controllers are shown to provide reductions of greater than 50% in 0, Qo and structural bending moments. In addition, the effects of wind measurement delays and uncertainty on the performance of each controller are investigated.

Guidance And Control

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Author :
language : en
Publisher:
Release Date : 2001

Guidance And Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Space vehicles categories.

Guidance And Control 2001

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Author : Robert D. Culp
language : en
Publisher:
Release Date : 2001

Guidance And Control 2001 written by Robert D. Culp and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Technology & Engineering categories.

Taken from the January 2001 conference in Breckenridge, Colorado, these 41 papers discuss recent advances and experiences in guidance and control, including autonomous and remotely piloted terrestrial landings, landing on planetary bodies, guidance and control storyboard displays, and optical control. The lessons from specific projects, like the Sirius satellites, the Hubble telescope, and XMM-Newton, are emphasized. Contributors include researchers with universities, the military, and NASA. Author index only. c. Book News Inc.