Download or read book CONDUIT A New Multidisciplinary Integration Environment for Flight Control Development written by and published by . This book was released on 1997 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art computational facility for aircraft flight control design, evaluation, and integration called CONDUIT (Control Designer's Unified Interface) has been developed. This paper describes the CONDUIT tool and case study applications to complex rotary- and fixed- wing fly-by-wire flight control problems. Control system analysis and design optimization methods are presented, including definition of design specifications and system models within CONDUIT, and the multi-objective function optimization (CONSOL-OPTCAD) used to tune the selected design parameters. Design examples are based on flight test programs for which extensive data are available for validation. CONDUIT is used to analyze baseline control laws against pertinent military handling qualities and control system specifications. In both case studies, CONDUIT successfully exploits trade-offs between forward loop and feedback dynamics to significantly improve the expected handling qualities and minimize the required actuator authority. The CONDUIT system provides a new environment for integrated control system analysis and design, and has potential for significantly reducing the time and cost of control system flight test optimization.
Download or read book CONDUIT written by and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conduit A New Multidisciplinary Integration Environment For Flight Control Development NASA TM 112203 Oct 7 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Overview of Flight Test Results for a Formation Flight Autopilot written by and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first flight test phase of the NASA Dryden Flight Research Center Autonomous Formation Flight project has successfully demonstrated precision autonomous station-keeping of an F/A-18 research airplane with a second F/A-18 airplane. Blended inertial navigation system (INS) and global positioning system (GPS) measurements have been communicated across an air-to-air telemetry link and used to compute relative-position estimates. A precision research formation autopilot onboard the trailing airplane controls lateral and vertical spacing while the leading airplane operates under production autopilot control. Four research autopilot gain sets have been designed and flight-tested, and each exceeds the project design requirement of steady-state tracking accuracy within 1 standard deviation of 10 ft.
Download or read book Helicopter Flight Dynamics written by Gareth D. Padfield and published by John Wiley & Sons. This book was released on 2018-11-19 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Book The behaviour of helicopters and tiltrotor aircraft is so complex that understanding the physical mechanisms at work in trim, stability and response, and thus the prediction of Flying Qualities, requires a framework of analytical and numerical modelling and simulation. Good Flying Qualities are vital for ensuring that mission performance is achievable with safety and, in the first and second editions of Helicopter Flight Dynamics, a comprehensive treatment of design criteria was presented, relating to both normal and degraded Flying Qualities. Fully embracing the consequences of Degraded Flying Qualities during the design phase will contribute positively to safety. In this third edition, two new Chapters are included. Chapter 9 takes the reader on a journey from the origins of the story of Flying Qualities, tracing key contributions to the developing maturity and to the current position. Chapter 10 provides a comprehensive treatment of the Flight Dynamics of tiltrotor aircraft; informed by research activities and the limited data on operational aircraft. Many of the unique behavioural characteristics of tiltrotors are revealed for the first time in this book. The accurate prediction and assessment of Flying Qualities draws on the modelling and simulation discipline on the one hand and testing practice on the other. Checking predictions in flight requires clearly defined mission tasks, derived from realistic performance requirements. High fidelity simulations also form the basis for the design of stability and control augmentation systems, essential for conferring Level 1 Flying Qualities. The integrated description of flight dynamic modelling, simulation and flying qualities of rotorcraft forms the subject of this book, which will be of interest to engineers practising and honing their skills in research laboratories, academia and manufacturing industries, test pilots and flight test engineers, and as a reference for graduate and postgraduate students in aerospace engineering.
Download or read book Proceedings of the International Conference on Aerospace System Science and Engineering 2021 written by Zhongliang Jing and published by Springer Nature. This book was released on 2022-07-08 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book collects selected papers presented at the 5th International Conference on Aerospace System Science and Engineering (ICASSE 2021), organized by Shanghai Jiao Tong University, China, hosted by Moscow Aviation Institute, Russia. It provides a forum for experts in aeronautics and astronautics to share new ideas and findings. ICASSE conference has been organized annually since 2017 and host in Shanghai, Moscow, and Toronto in turn, where the three regional editors of journal Aerospace Systems are located. This book presents high-quality contributions in the subject area of Aerospace System Science and Engineering, including topics such as: Trans-space vehicle systems design and integration, Air vehicle systems, Space vehicle systems, Near-space vehicle systems, Opto-electronic system, Aerospace robotics and unmanned system, Aerospace robotics and unmanned system, Communication, navigation and surveillance, Dynamics and control, Intelligent sensing and Information fusion, Aerodynamics and aircraft design, Aerospace propulsion, Avionics system, Air traffic management, Earth observation, Deep space exploration, Bionic micro-aircraft/spacecraft.
Download or read book Advances In Aircraft Flight Control written by M B Tischler and published by CRC Press. This book was released on 1996-06-28 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a single comprehensive resource that reviews many of the current aircraft flight control programmes from the perspective of experienced practitioners directly involved in the projects. Each chapter discusses a specific aircraft flight programme covering the control system design considerations, control law architecture, simulation and analysis, flight test optimization and handling qualities evaluations. The programmes described have widely exploited modern interdisciplinary tools and techniques and the discussions include extensive flight test results. Many important `lessons learned' are included from the experience gained when design methods and requirements were tested and optimized in actual flight demonstration.
Download or read book Flight Simulation Within the Frame of Multidisciplinary Optimization of Large Flexible Aircraft written by Armin Rommel and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The disciplines flight mechanics I flight control and structural dynamics have to work closely together when large flexible aircraft, such as A340-600 and A3XX, are designed. The flight-control system has to be designed under the constraint that structural oscillation resonances or unacceptable levels of structural loads have to be avoided. Especially the integration of flight control and structural control requires multidisciplinary cooperation. In the potential conflict between handling qualities and minimal structural loads requirements the flight-control law parameters have to be optimized. This paper describes enhancements of real-time flight simulation in order to integrate the pilot into the control loop especially with respect to the effects of cockpit accelerations. The enhancements cover the coupling of rigid body motion and flexible modes in order to analyze the effects of neighboring frequencies, as well as the inclusion of simplified loads computation within the real-time simulation environment. Moreover, a cost-effective way of simulation-model development is presented. This covers model development and testing/validation on a fixed-base engineering flight simulator followed by a proven model transfer onto a six degrees of freedom motion simulator where intensive pilot-in-the-loop investigations can be carried out.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautics and Astronautics written by Max Mulder and published by BoD – Books on Demand. This book was released on 2011-09-12 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its first centennial, aerospace has matured from a pioneering activity to an indispensable enabler of our daily life activities. In the next twenty to thirty years, aerospace will face a tremendous challenge - the development of flying objects that do not depend on fossil fuels. The twenty-three chapters in this book capture some of the new technologies and methods that are currently being developed to enable sustainable air transport and space flight. It clearly illustrates the multi-disciplinary character of aerospace engineering, and the fact that the challenges of air transportation and space missions continue to call for the most innovative solutions and daring concepts.
Download or read book An Integrated Approach to Flight Control System Design written by Christopher Simon Beaverstock and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A closely integrated Flight Control System (FCS) design is fundamental to the successful develop- ment of modern aircraft. The FCS must provide adequate control authority to the pilot operator, along with a robust systems design that provides sufficient reliability and performance to ensure ad- equate handling qualities throughout the operational flight envelope. Using feedback controllers, the static and dynamic characteristics can be augmented, ultimately to improve the performance. In- cluding feedback control into the conceptual design process can in many cases improve not only the static and dynamic performance, but the operational efficiency. Essentially, the stability requirements are relaxed, where the additional parameters supplied by the controller are used to recover the lost performance. Furthermore, this is bounded by the performance of the command-actuation system. Parameters such as rate and maximum actuation output limit the systems designs performance, as well as the system dynamics which modifies the response. This thesis considers the task of integrating classical control and systems design under a single design framework. It is shown that by expanding the design space parameters, the overall aircraft perfor- mance and efficiency can be improved. The intended application of these methods is for integration into the conceptual design phase, where commitment of resources is normally at its greatest. Prin- ciples of this thesis are embodied in the FCS design environment Flight Control Systems Designer Toolkit (FCSDT), a sub-component of the Computerised Environment for Aircraft Synthesis and In- tegrated Optirnisation Methods (CEASIOM) software framework developed by Simulation of aircraft Stability And Control (SimSAC), an European Union (EU) funded Framework 6 Program, of which the author was a part of the development team. It is hypothesised that the FCS topology, systems architecture and control design are intrinsically linked, and that modifying these concurrently can lead to an improved design. This is demon- strated using data for a Boeing 747-100 published by National Aeronautics and Space Adminis- tration (NASA), selected due to the wealth of data and information available. Furthermore, with multiply-redundant surfaces and varying response and control power characteristics, provides a non- trivial example for FCS design. The NASA model was used to investigate static and dynamic per- formance across the operational ftight envelope. FCSDT was then used to explore the interaction between the topology and systems design whilst integrating feedback control. Results show the pos- sible performance benefits of. and the system limitations on. the control system design.
Download or read book The Development of the Conduit Advanced Control System Design and Evaluation Interface with a Case Study Application to an Advanced Fly by Wire Helicopter Design written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-11 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details the development and use of CONDUIT (Control Designer's Unified Interface). CONDUIT is a design tool created at Ames Research Center for the purpose of evaluating and optimizing aircraft control systems against handling qualities. Three detailed design problems addressing the RASCAL UH-60A Black Hawk are included in this report to show the application of CONDUIT to helicopter control system design.Colbourne, JasonAmes Research CenterAIRCRAFT CONTROL; CONTROL SYSTEMS DESIGN; DESIGN ANALYSIS; COMPUTER PROGRAMS; HELICOPTER CONTROL; PIPES (TUBES); FLY BY WIRE CONTROL
Download or read book Hierarchical Flight Control System Synthesis for Rotorcraft based Unmanned Aerial Vehicles written by Hyunchul Shim and published by . This book was released on 2000 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control of Linear Parameter Varying Systems with Applications written by Javad Mohammadpour and published by Springer Science & Business Media. This book was released on 2012-03-09 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control of Linear Parameter Varying Systems compiles state-of-the-art contributions on novel analytical and computational methods for addressing system identification, model reduction, performance analysis and feedback control design and addresses address theoretical developments, novel computational approaches and illustrative applications to various fields. Part I discusses modeling and system identification of linear parameter varying systems, Part II covers the importance of analysis and control design when working with linear parameter varying systems (LPVS) , Finally, Part III presents an applications based approach to linear parameter varying systems, including modeling of a turbocharged diesel engines, Multivariable control of wind turbines, modeling and control of aircraft engines, control of an autonomous underwater vehicles and analysis and synthesis of re-entry vehicles.
Download or read book In Flight Simulators and Fly by Wire Light Demonstrators written by Peter G. Hamel and published by Springer. This book was released on 2017-03-15 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers the first complete account of more than sixty years of international research on In-Flight Simulation and related development of electronic and electro-optic flight control system technologies (“Fly-by-Wire” and “Fly-by-Light”). They have provided a versatile and experimental procedure that is of particular importance for verification, optimization, and evaluation of flying qualities and flight safety of manned or unmanned aircraft systems. Extensive coverage is given in the book to both fundamental information related to flight testing and state-of-the-art advances in the design and implementation of electronic and electro-optic flight control systems, which have made In-Flight Simulation possible. Written by experts, the respective chapters clearly show the interdependence between various aeronautical disciplines and in-flight simulation methods. Taken together, they form a truly multidisciplinary book that addresses the needs of not just flight test engi neers, but also other aeronautical scientists, engineers and project managers and historians as well. Students with a general interest in aeronautics as well as researchers in countries with growing aeronautical ambitions will also find the book useful. The omission of mathematical equations and in-depth theoretical discussions in favor of fresh discussions on innovative experiments, together with the inclusion of anecdotes and fascinating photos, make this book not only an enjoyable read, but also an important incentive to future research. The book, translated from the German by Ravindra Jategaonkar, is an extended and revised English edition of the book Fliegende Simulatoren und Technologieträger , edited by Peter Hamel and published by Appelhans in 2014.
Download or read book Flight Control Systems written by Roger Pratt and published by IET. This book was released on 2000 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Bridging the gap between academic research and real-world applications, this reference on modern flight control methods for fixed-wing aircraft deals with fundamentals of flight control systems design, then concentrates on applications based on the modern control methods used in the latest aircraft. The book is written for practicing engineers who are new to the aviation industry, postgraduate students in strategic or applied research, and advanced undergraduates. Some knowledge of classical control is assumed. Pratt is a member of IEEE and is UK Member for AIAA's Technical Committee on Guidance, Navigation and Control. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Download or read book Proceedings IEEE Control Systems Society Symposium on Computer Aided Control System Design CACSD written by and published by . This book was released on 1999 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
