Fault Identification For Real Time Flight Controller Reconfiguration

Author : Jayalakshmi Nagam
Publisher : Unknown
Page : 0 pages
File Size : 43,9 Mb
Release : 2023-01-14
Category : Computers
ISBN : 0224394010

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Fault Identification for Real Time Flight Controller Reconfiguration by Jayalakshmi Nagam Pdf

Fault Identification for Real Time Flight Controller Reconfiguration refers to the process of detecting, diagnosing, and mitigating faults in a flight control system in real-time. This is crucial for ensuring the safety and performance of aircraft. The process involves monitoring sensor data and analyzing it to detect any anomalies or failures in the system. Once a fault is detected, a diagnosis is performed to determine the cause of the fault and the appropriate reconfiguration strategy is implemented to mitigate its effects. This can include switching to redundant systems, adjusting control parameters, or other adaptive control techniques. The goal is to maintain the safe and stable operation of the aircraft while minimizing any impact on performance. Flight controller reconfiguration refers to the process of adapting the control system of an aircraft to changing conditions or system failures. The goal is to maintain the safe and stable operation of the aircraft while minimizing any impact on performance. This can be achieved through a variety of methods such as switching to redundant systems, adjusting control parameters, or implementing other adaptive control techniques. The process of reconfiguration may be triggered by a variety of factors, including system failures, changes in flight conditions, or the need to optimize performance. The reconfiguration process is typically performed in real-time and can be based on both model-based and data-driven approaches. A key aspect of flight controller reconfiguration is the ability to detect and diagnose faults in the system and to implement the appropriate reconfiguration strategy to mitigate their effects. Fault Tolerant Flight Control (FTFC) systems deal with the detection and diagnosis of faults and look at the task of regaining control in the presence of the fault. Some faults are difficult to detect with the onboard monitoring systems, with the result that these faults endanger the safety and reliability of an aircraft. The study of improvement in safety, redundancy, and adapting the Flight Control Laws (FCL) after the occurrence of faults has fascinated several investigators in the previous two decades. The literature study illustrates different fault diagnosis and FTFC approaches. The main research direction is to detect and isolate fault reliably, carry out real-time identification of the plant, and real-time control law (CLAW) reconfiguration. The main contribution of this thesis is towards these aspects. In this chapter, the basic terminologies are explained. The research work carried out in this thesis is in the area of FTFC systems.

Author : C. Hajiyev,F. Caliskan
Publisher : Springer Science & Business Media
Page : 361 pages
File Size : 41,7 Mb
Release : 2013-12-01
Category : Technology & Engineering
ISBN : 9781441991669

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Fault Diagnosis and Reconfiguration in Flight Control Systems by C. Hajiyev,F. Caliskan Pdf

The problem of fault diagnosis and reconfigurable control is a new and actually developing field of science and engineering. The subject becomes more interesting since there is an increasing demand for the navigation and control systems of aerospace vehicles, automated actuators etc. to be more safe and reliable. Nowadays, the problems of fault detection and isolation and reconfigurable control attract the attention the scientists in the world. The subject is emphasized in the recent international congresses such as IF AC World Congresses (San Francisco-1996, Beijing-1999, and Barcelona-2002) and lMEKO World Congresses (Tampere-1997, Osaka-1999, Vienna-2000), and also in the international conferences on fault diagnosis such as SAFEPROCESS Conferences (Hull-1997, Budapest-2000). The presented methods in the book are based on linear and nonlinear dynamic mathematical models of the systems. Technical objects and systems stated by these models are very large, and include various control systems, actuators, sensors, computer systems, communication systems, and mechanical, hydraulic, pneumatic, electrical and electronic devices. The analytical fault diagnosis techniques of these objects have been developed for several decades. Many of those techniques are based on the use of the results of modem control theory. This is natural, because it is known that fault diagnosis process in control systems is considered as a part of general control process. xxii In organization of fault diagnosis of control systems, the use of the concepts and methods of modem control theory including concepts of state space, modeling, controllability, observability, estimation, identification, and filtering is very efficient.

Author : Christopher Edwards,Thomas Lombaerts,Hafid Smaili
Publisher : Springer
Page : 560 pages
File Size : 47,6 Mb
Release : 2010-04-18
Category : Technology & Engineering
ISBN : 9783642116902

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Fault Tolerant Flight Control by Christopher Edwards,Thomas Lombaerts,Hafid Smaili Pdf

Written by leading experts in the field, this book provides the state-of-the-art in terms of fault tolerant control applicable to civil aircraft. The book consists of five parts and includes online material.

Author : P.J. Fleming,D.I. Jones
Publisher : Elsevier
Page : 274 pages
File Size : 48,6 Mb
Release : 2014-07-22
Category : Technology & Engineering
ISBN : 9781483298252

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Algorithms and Architectures for Real-Time Control 1991 by P.J. Fleming,D.I. Jones Pdf

Computer scientists have long appreciated that the relationship between algorithms and architecture is crucial. Broadly speaking the more specialized the architecture is to a particular algorithm then the more efficient will be the computation. The penalty is that the architecture will become useless for computing anything other than that algorithm. This message holds for the algorithms used in real-time automatic control as much as any other field. These Proceedings will provide researchers in this field with a useful up-to-date reference source of recent developments.

Author : Maria Agneta Balint
Publisher : BoD – Books on Demand
Page : 314 pages
File Size : 43,9 Mb
Release : 2011-04-11
Category : Technology & Engineering
ISBN : 9789533072180

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Advances in Flight Control Systems by Maria Agneta Balint Pdf

Nonlinear problems in flight control have stimulated cooperation among engineers and scientists from a range of disciplines. Developments in computer technology allowed for numerical solutions of nonlinear control problems, while industrial recognition and applications of nonlinear mathematical models in solving technological problems is increasing. The aim of the book Advances in Flight Control Systems is to bring together reputable researchers from different countries in order to provide a comprehensive coverage of advanced and modern topics in flight control not yet reflected by other books. This product comprises 14 contributions submitted by 38 authors from 11 different countries and areas. It covers most of the currents main streams of flight control researches, ranging from adaptive flight control mechanism, fault tolerant flight control, acceleration based flight control, helicopter flight control, comparison of flight control systems and fundamentals. According to these themes the contributions are grouped in six categories, corresponding to six parts of the book.

Author : Halim Alwi,Christopher Edwards,Chee Pin Tan
Publisher : Springer Science & Business Media
Page : 340 pages
File Size : 45,6 Mb
Release : 2011-06-07
Category : Technology & Engineering
ISBN : 9780857296504

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Fault Detection and Fault-Tolerant Control Using Sliding Modes by Halim Alwi,Christopher Edwards,Chee Pin Tan Pdf

Fault Detection and Fault-tolerant Control Using Sliding Modes is the first text dedicated to showing the latest developments in the use of sliding-mode concepts for fault detection and isolation (FDI) and fault-tolerant control in dynamical engineering systems. It begins with an introduction to the basic concepts of sliding modes to provide a background to the field. This is followed by chapters that describe the use and design of sliding-mode observers for FDI using robust fault reconstruction. The development of a class of sliding-mode observers is described from first principles through to the latest schemes that circumvent minimum-phase and relative-degree conditions. Recent developments have shown that the field of fault tolerant control is a natural application of the well-known robustness properties of sliding-mode control. A family of sliding-mode control designs incorporating control allocation, which can deal with actuator failures directly by exploiting redundancy, is presented. Various realistic case studies, specifically highlighting aircraft systems and including results from the implementation of these designs on a motion flight simulator, are described. A reference and guide for researchers in fault detection and fault-tolerant control, this book will also be of interest to graduate students working with nonlinear systems and with sliding modes in particular. Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

Author : Guillaume J. J. Ducard
Publisher : Springer Science & Business Media
Page : 268 pages
File Size : 47,8 Mb
Release : 2009-05-14
Category : Technology & Engineering
ISBN : 9781848825611

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Fault-tolerant Flight Control and Guidance Systems by Guillaume J. J. Ducard Pdf

This book offers a complete overview of fault-tolerant flight control techniques. Discussion covers the necessary equations for the modeling of small UAVs, a complete system based on extended Kalman filters, and a nonlinear flight control and guidance system.

Author : Marcel Staroswiecki,Eva Wu
Publisher : Elsevier
Page : 1210 pages
File Size : 40,8 Mb
Release : 2004-02-27
Category : Science
ISBN : 0080440118

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Fault Detection, Supervision and Safety of Technical Processes 2003 (SAFEPROCESS 2003) by Marcel Staroswiecki,Eva Wu Pdf

A three-volume work bringing together papers presented at 'SAFEPROCESS 2003', including four plenary papers on statistical, physical-model-based and logical-model-based approaches to fault detection and diagnosis, as well as 178 regular papers.

Author : Rolf Isermann
Publisher : Springer Science & Business Media
Page : 500 pages
File Size : 52,5 Mb
Release : 2005-10-13
Category : Technology & Engineering
ISBN : 3540241124

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Fault-Diagnosis Systems by Rolf Isermann Pdf

With increasing demands for efficiency and product quality plus progress in the integration of automatic control systems in high-cost mechatronic and safety-critical processes, the field of supervision (or monitoring), fault detection and fault diagnosis plays an important role. The book gives an introduction into advanced methods of fault detection and diagnosis (FDD). After definitions of important terms, it considers the reliability, availability, safety and systems integrity of technical processes. Then fault-detection methods for single signals without models such as limit and trend checking and with harmonic and stochastic models, such as Fourier analysis, correlation and wavelets are treated. This is followed by fault detection with process models using the relationships between signals such as parameter estimation, parity equations, observers and principal component analysis. The treated fault-diagnosis methods include classification methods from Bayes classification to neural networks with decision trees and inference methods from approximate reasoning with fuzzy logic to hybrid fuzzy-neuro systems. Several practical examples for fault detection and diagnosis of DC motor drives, a centrifugal pump, automotive suspension and tire demonstrate applications.

Author : Sergey E. Lyshevski
Publisher : Springer Science & Business Media
Page : 416 pages
File Size : 45,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461201533

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Control Systems Theory with Engineering Applications by Sergey E. Lyshevski Pdf

Dynamics systems (living organisms, electromechanical and industrial systems, chemical and technological processes, market and ecology, and so forth) can be considered and analyzed using information and systems theories. For example, adaptive human behavior can be studied using automatic feedback control. As an illustrative example, the driver controls a car changing the speed and steer ing wheels using incoming information, such as traffic and road conditions. This book focuses on the most important and manageable topics in applied multivariable control with application to a wide class of electromechanical dynamic systems. A large spectrum of systems, familiar to electrical, mechanical, and aerospace stu dents, engineers, and scholars, are thoroughly studied to build the bridge between theory and practice as well as to illustrate the practical application of control theory through illustrative examples. It is the author's goal to write a book that can be used to teach undergraduate and graduate classes in automatic control and nonlin ear control at electrical, mechanical, and aerospace engineering departments. The book is also addressed to engineers and scholars, and the examples considered allow one to implement the theory in a great variety of industrial systems. The main purpose of this book is to help the reader grasp the nature and significance of multivariable control.

Author : Jan H. Richter
Publisher : Springer
Page : 299 pages
File Size : 40,6 Mb
Release : 2011-02-02
Category : Technology & Engineering
ISBN : 9783642176289

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Reconfigurable Control of Nonlinear Dynamical Systems by Jan H. Richter Pdf

This research monograph summarizes solutions to reconfigurable fault-tolerant control problems for nonlinear dynamical systems that are based on the fault-hiding principle. It emphasizes but is not limited to complete actuator and sensor failures. In the first part, the monograph starts with a broad introduction of the control reconfiguration problems and objectives as well as summaries and explanations of solutions for linear dynamical systems. The solution is always a reconfiguration block, which consists of linear virtual actuators in the case of actuator faults and linear virtual sensors in the case of sensor faults. The main advantage of the fault-hiding concept is the reusability of the nominal controller, which remains in the loop as an active system while the virtual actuator and sensor adapt the control input and the measured output to the fault scenario. The second and third parts extend virtual actuators and virtual sensors towards the classes of Hammerstein-Wiener systems and piecewise affine systems. The main analyses concern stability recovery, setpoint tracking recovery, and performance recovery as reconfiguration objectives. The fourth part concludes the monograph with descriptions of practical implementations and case studies. The book is primarily intended for active researchers and practicing engineers in the field of fault-tolerant control. Due to many running examples it is also suitable for interested graduate students.

Author : Hong-Yue Zhang
Publisher : Elsevier
Page : 1576 pages
File Size : 51,7 Mb
Release : 2007-03-01
Category : Science
ISBN : 008055539X

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Fault Detection, Supervision and Safety of Technical Processes 2006 by Hong-Yue Zhang Pdf

The safe and reliable operation of technical systems is of great significance for the protection of human life and health, the environment, and of the vested economic value. The correct functioning of those systems has a profound impact also on production cost and product quality. The early detection of faults is critical in avoiding performance degradation and damage to the machinery or human life. Accurate diagnosis then helps to make the right decisions on emergency actions and repairs. Fault detection and diagnosis (FDD) has developed into a major area of research, at the intersection of systems and control engineering, artificial intelligence, applied mathematics and statistics, and such application fields as chemical, electrical, mechanical and aerospace engineering. IFAC has recognized the significance of FDD by launching a triennial symposium series dedicated to the subject. The SAFEPROCESS Symposium is organized every three years since the first symposium held in Baden-Baden in 1991. SAFEPROCESS 2006, the 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes was held in Beijing, PR China. The program included three plenary papers, two semi-plenary papers, two industrial talks by internationally recognized experts and 258 regular papers, which have been selected out of a total of 387 regular and invited papers submitted. * Discusses the developments and future challenges in all aspects of fault diagnosis and fault tolerant control * 8 invited and 36 contributed sessions included with a special session on the demonstration of process monitoring and diagnostic software tools

Author : Anonim
Publisher : Unknown
Page : 172 pages
File Size : 44,7 Mb
Release : 1986
Category : Electronic
ISBN : UIUC:30112101047899

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Air Force Journal of Logistics by Anonim Pdf

Author : Qinglei Hu,Bing Xiao,Bo Li,Youmin Zhang
Publisher : Elsevier
Page : 306 pages
File Size : 51,6 Mb
Release : 2021-06-09
Category : Technology & Engineering
ISBN : 9780323901246

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Fault-Tolerant Attitude Control of Spacecraft by Qinglei Hu,Bing Xiao,Bo Li,Youmin Zhang Pdf

Fault-Tolerant Attitude Control of Spacecraft presents the fundamentals of spacecraft fault-tolerant attitude control systems, along with the most recent research and advanced, nonlinear control techniques. This book gives researchers a self-contained guide to the complex tasks of envisaging, designing, implementing and experimenting by presenting designs for integrated modeling, dynamics, fault-tolerant attitude control, and fault reconstruction for spacecraft. Specifically, the book gives a full literature review and presents preliminaries and mathematical models, robust fault-tolerant attitude control, fault-tolerant attitude control with actuator saturation, velocity-free fault tolerant attitude control, finite-time fault-tolerant attitude tracking control, and active fault-tolerant attitude contour. Finally, the book looks at the future of this interesting topic, offering readers a one-stop solution for those working on fault-tolerant attitude control for spacecraft. Presents the fundamentals of fault-tolerant attitude control systems for spacecraft in one practical solution Gives the latest research and thinking on nonlinear attitude control, fault tolerant control, and reliable attitude control Brings together concepts in fault control theory, fault diagnosis, and attitude control for spacecraft Covers advances in theory, technological aspects, and applications in spacecraft Presents detailed numerical and simulation results to assist engineers Offers a clear, systematic reference on fault-tolerant control and attitude control for spacecraft

Author : Zhengyu Song,Dangjun Zhao,Stephan Theil
Publisher : Springer Nature
Page : 229 pages
File Size : 53,5 Mb
Release : 2023-04-15
Category : Science
ISBN : 9789819906130

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Autonomous Trajectory Planning and Guidance Control for Launch Vehicles by Zhengyu Song,Dangjun Zhao,Stephan Theil Pdf

This open access book highlights the autonomous and intelligent flight control of future launch vehicles for improving flight autonomy to plan ascent and descent trajectories onboard, and autonomously handle unexpected events or failures during the flight. Since the beginning of the twenty-first century, space launch activities worldwide have grown vigorously. Meanwhile, commercial launches also account for the booming trend. Unfortunately, the risk of space launches still exists and is gradually increasing in line with the rapidly rising launch activities and commercial rockets. In the history of space launches, propulsion and control systems are the two main contributors to launch failures. With the development of information technologies, the increase of the functional density of hardware products, the application of redundant or fault-tolerant solutions, and the improvement of the testability of avionics, the launch losses caused by control systems exhibit a downward trend, and the failures induced by propulsion systems become the focus of attention. Under these failures, the autonomous planning and guidance control may save the missions. This book focuses on the latest progress of relevant projects and academic studies of autonomous guidance, especially on some advanced methods which can be potentially real-time implemented in the future control system of launch vehicles. In Chapter 1, the prospect and technical challenges are summarized by reviewing the development of launch vehicles. Chapters 2 to 4 mainly focus on the flight in the ascent phase, in which the autonomous guidance is mainly reflected in the online planning. Chapters 5 and 6 mainly discuss the powered descent guidance technologies. Finally, since aerodynamic uncertainties exert a significant impact on the performance of the ascent / landing guidance control systems, the estimation of aerodynamic parameters, which are helpful to improve flight autonomy, is discussed in Chapter 7. The book serves as a valuable reference for researchers and engineers working on launch vehicles. It is also a timely source of information for graduate students interested in the subject.