Flight Test Results Of An Adaptive Guidance System For Reusable Launch Vehicles
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Flight Test Results Of An Adaptive Guidance System For Reusable Launch Vehicles
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Author : John D. Schierman
language : en
Publisher:
Release Date : 2004
Flight Test Results Of An Adaptive Guidance System For Reusable Launch Vehicles written by John D. Schierman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Launch vehicles (Astronautics) categories.
To enable autonomous operations in future Reusable Launch Vehicles (RLVs), reconfigurable control and adaptive guidance will often be required to facilitate recovery of the mission following a major anomalous event such as an effector failure. An adaptive guidance system that works in conjunction with a reconfigurable controller and an autonomous trajectory command reshaping algorithm is presented. The guidance law utilizes a backstepping architecture to generate pitch rate commands that drive the inner-loop control system. Under extreme failure conditions the control surfaces can saturate in an attempt to meet commanded moments. In these cases, the guidance feedback gains are reduced to preserve stability margins in the guidance loops. A case study is presented that shows the benefits of the guidance gain adaptation. Without adjusting the gains, the guidance loops go unstable, whereas stability is maintained with gain reduction.
Aircraft Control Allocation
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Author : Wayne Durham
language : en
Publisher: John Wiley & Sons
Release Date : 2017-01-17
Aircraft Control Allocation written by Wayne Durham and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-17 with Technology & Engineering categories.
Aircraft Control Allocation Wayne Durham, Virginia Polytechnic Institute and State University, USA Kenneth A. Bordignon, Embry-Riddle Aeronautical University, USA Roger Beck, Dynamic Concepts, Inc., USA An authoritative work on aircraft control allocation by its pioneers Aircraft Control Allocation addresses the problem of allocating supposed redundant flight controls. It provides introductory material on flight dynamics and control to provide the context, and then describes in detail the geometry of the problem. The book includes a large section on solution methods, including 'Banks' method', a previously unpublished procedure. Generalized inverses are also discussed at length. There is an introductory section on linear programming solutions, as well as an extensive and comprehensive appendix dedicated to linear programming formulations and solutions. Discrete-time, or frame-wise allocation, is presented, including rate-limiting, nonlinear data, and preferred solutions. Key features: Written by pioneers in the field of control allocation. Comprehensive explanation and discussion of the major control allocation solution methods. Extensive treatment of linear programming solutions to control allocation. A companion web site contains the code of a MATLAB/Simulink flight simulation with modules that incorporate all of the major solution methods. Includes examples based on actual aircraft. The book is a vital reference for researchers and practitioners working in aircraft control, as well as graduate students in aerospace engineering.
Advances In Aerospace Guidance Navigation And Control
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Author : Bogusław Dołęga
language : en
Publisher: Springer
Release Date : 2017-12-15
Advances In Aerospace Guidance Navigation And Control written by Bogusław Dołęga and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-15 with Technology & Engineering categories.
The first three CEAS (Counsil of European Aerospace Societies) Specialist Conferences on Guidance, Navigation and Control (CEAS EuroGNC) were held in Munich, Germany in 2011, in Delft, Netherlands in 2013 and in Toulouse, France in 2017. The Warsaw University of Technology (WUT) and the Rzeszow University of Technology (RzUT) accepted the challenge of jointly organizing the 4th edition. The conference aims to promote scientific and technical excellence in the fields of Guidance, Navigation and Control (GNC) in aerospace and other fields of technology. The Conference joins together the industry with the academia research. This book covers four main topics: Guidance and Control, Control Theory Application, Navigation, UAV Control and Dynamic. The papers included focus on the most advanced and actual topics in guidance, navigation and control research areas: · Control theory, analysis, and design · ; Novel navigation, estimation, and tracking methods · Aircraft, spacecraft, missile and UAV guidance, navigation, and control · Flight testing and experimental results · Intelligent control in aerospace applications · Aerospace robotics and unmanned/autonomous systems · Sensor systems for guidance, navigation and control · Guidance, navigation, and control concepts in air traffic control systems For the 4th CEAS Specialist Conference on Guidance, Navigation and Control the International Technical Committee established a formal review process. Each paper was reviewed in compliance with good journal practices by independent and anonymous reviewers. At the end of the review process papers were selected for publication in this book.
Proceedings Of The 6th China Aeronautical Science And Technology Conference
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Author : Chinese Soc. of Aeronautics&Astronautics
language : en
Publisher: Springer Nature
Release Date : 2023-12-20
Proceedings Of The 6th China Aeronautical Science And Technology Conference written by Chinese Soc. of Aeronautics&Astronautics and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-20 with Technology & Engineering categories.
This book contains the original peer-reviewed research papers presented at the 6th China Aeronautical Science and Technology Conference held in Wuzhen, Zhejiang Province, China, in September 2023. Topics covered include but are not limited to Navigation/Guidance and Control Technology, Aircraft Design and Overall Optimisation of Key Technologies, Aviation Testing Technology, Airborne Systems/Electromechanical Technology, Structural Design, Aerodynamics and Flight Mechanics, Advanced Aviation Materials and Manufacturing Technology, Advanced Aviation Propulsion Technology, and Civil Aviation Transportation. The papers presented here share the latest findings in aviation science and technology, making the book a valuable resource for researchers, engineers and students in related fields.
Intelligent Equipment And Special Robots
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Author : Q. Zhang
language : en
Publisher: IOS Press
Release Date : 2024-05-15
Intelligent Equipment And Special Robots written by Q. Zhang and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-15 with Computers categories.
Developments in AI are occurring rapidly, with new applications constantly on the increase, and one of the areas in which interesting developments are always taking place is that of intelligent equipment and special robots. This book presents papers from ICIESR 2023, the 2nd International Conference on Intelligent Equipment and Special Robots, held from 20 to 22 October 2023 in Qingdao, China. The conference series has established a platform for experts, researchers, and students working in related fields to present, exchange, and discuss the latest advances and developments, linking various branches of science and technology. It promotes innovation in, and the application of, intelligent equipment and special robots, and fosters the development of related industries, and this year’s conference brought together 180 participants. A total of 206 submissions was received for the conference, of which 185 were selected for peer review, in the course of which they were evaluated for theme, structure, method, content, language, and format. Of these, 80 papers were accepted for presentation and publication, resulting in an acceptance rate of 39%. Topics covered include intelligent detection technology, smart manufacturing, artificial intelligence, mechatronics technology, and creative and entertaining robots, among others. Providing a current overview of recent developments in the field, the book will be of interest to all those whose work relates to intelligent equipment and special robots.
Aircraft Control And Simulation
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Author : Brian L. Stevens
language : en
Publisher: John Wiley & Sons
Release Date : 2015-10-02
Aircraft Control And Simulation written by Brian L. Stevens and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-02 with Technology & Engineering categories.
Get a complete understanding of aircraft control and simulation Aircraft Control and Simulation: Dynamics, Controls Design, and Autonomous Systems, Third Edition is a comprehensive guide to aircraft control and simulation. This updated text covers flight control systems, flight dynamics, aircraft modeling, and flight simulation from both classical design and modern perspectives, as well as two new chapters on the modeling, simulation, and adaptive control of unmanned aerial vehicles. With detailed examples, including relevant MATLAB calculations and FORTRAN codes, this approachable yet detailed reference also provides access to supplementary materials, including chapter problems and an instructor's solution manual. Aircraft control, as a subject area, combines an understanding of aerodynamics with knowledge of the physical systems of an aircraft. The ability to analyze the performance of an aircraft both in the real world and in computer-simulated flight is essential to maintaining proper control and function of the aircraft. Keeping up with the skills necessary to perform this analysis is critical for you to thrive in the aircraft control field. Explore a steadily progressing list of topics, including equations of motion and aerodynamics, classical controls, and more advanced control methods Consider detailed control design examples using computer numerical tools and simulation examples Understand control design methods as they are applied to aircraft nonlinear math models Access updated content about unmanned aircraft (UAVs) Aircraft Control and Simulation: Dynamics, Controls Design, and Autonomous Systems, Third Edition is an essential reference for engineers and designers involved in the development of aircraft and aerospace systems and computer-based flight simulations, as well as upper-level undergraduate and graduate students studying mechanical and aerospace engineering.
Design Of Trajectory Optimization Approach For Space Maneuver Vehicle Skip Entry Problems
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Author : Runqi Chai
language : en
Publisher: Springer
Release Date : 2019-07-30
Design Of Trajectory Optimization Approach For Space Maneuver Vehicle Skip Entry Problems written by Runqi Chai and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-30 with Technology & Engineering categories.
This book explores the design of optimal trajectories for space maneuver vehicles (SMVs) using optimal control-based techniques. It begins with a comprehensive introduction to and overview of three main approaches to trajectory optimization, and subsequently focuses on the design of a novel hybrid optimization strategy that combines an initial guess generator with an improved gradient-based inner optimizer. Further, it highlights the development of multi-objective spacecraft trajectory optimization problems, with a particular focus on multi-objective transcription methods and multi-objective evolutionary algorithms. In its final sections, the book studies spacecraft flight scenarios with noise-perturbed dynamics and probabilistic constraints, and designs and validates new chance-constrained optimal control frameworks. The comprehensive and systematic treatment of practical issues in spacecraft trajectory optimization is one of the book’s major features, making it particularly suited for readers who are seeking practical solutions in spacecraft trajectory optimization. It offers a valuable asset for researchers, engineers, and graduate students in GNC systems, engineering optimization, applied optimal control theory, etc.
Aiaa Aerospace Sciences Meeting And Exhibit 42nd
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Author :
language : en
Publisher:
Release Date : 2004
Aiaa Aerospace Sciences Meeting And Exhibit 42nd written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Aeronautics categories.
Journal Of Guidance Control And Dynamics
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Author :
language : en
Publisher:
Release Date : 2009
Journal Of Guidance Control And Dynamics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Airplanes categories.
Fault Tolerant Optimal Trajectory Generation For Reusable Launch Vehicles
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Author : Patrick J. Shaffer
language : en
Publisher:
Release Date : 2006
Fault Tolerant Optimal Trajectory Generation For Reusable Launch Vehicles written by Patrick J. Shaffer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Launch vehicles (Astronautics) categories.
Reconfigurable inner-loop control laws improve the fault tolerance of a vehicle to control effector failures; however, in order to preserve stability, the unfailed effectors may be deployed to off-nominal positions to compensate for undesirable perturbations caused by the failed effectors. The effectors acting under the influence of a reconfigurable control law can produce significant perturbations to the nominal forces produced by the wing and body and can also affect the range of flight conditions over which the vehicle can be controlled. Three degree-of-freedom (3 DOF) dynamical models used in trajectory optimization for aerospace vehicles typically include wing-body aerodynamic force effects but ignore the aerodynamic forces produced by the control surfaces. In this work, a method for including these trim effects as well as control induced trajectory constraints in a 3 DOF model is presented.