Download or read book Flight Dynamic Modelling and Simulation of Large Flexible Aircraft written by Gaétan Dussart and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The drive for aircraft efficiency and minimum environmental impact is requiring the aerospace industry to generate technologically innovative and highly integrated aircraft concepts. This has changed the approach towards conceptual design and highlighted the need for modular low fidelity aircraft simulation models that not only capture conventional flight dynamics but also provide insight into aeroservoelasticity and flight loads. The key aspects that drive the need for modularity are discussed alongside integration aspects related to coupling aerodynamic models, flight dynamic equations of motion and structural dynamic models. The details of developing such a simulation framework are presented and the utility of such a tool is illustrated through two test cases. The first case focuses on aircraft response to a gust that has a spanwise varying profile. The second investigates aircraft dynamics during control surface failure scenarios. The Cranfield Accelerated Aeroplane Loads Model (CA2LM) forms the basis of the presented discussion.
Download or read book Flight Dynamics Simulation and Control written by Ranjan Vepa and published by CRC Press. This book was released on 2014-08-18 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore Key Concepts and Techniques Associated with Control Configured Elastic Aircraft A rapid rise in air travel in the past decade is driving the development of newer, more energy-efficient, and malleable aircraft. Typically lighter and more flexible than the traditional rigid body, this new ideal calls for adaptations to some conventional concepts. Flight Dynamics, Simulation, and Control: For Rigid and Flexible Aircraft addresses the intricacies involved in the dynamic modelling, simulation, and control of a selection of aircraft. This book covers the conventional dynamics of rigid aircraft, explores key concepts associated with control configured elastic aircraft, and examines the use of linear and non-linear model-based techniques and their applications to flight control. In addition, it reveals how the principles of modeling and control can be applied to both traditional rigid and modern flexible aircraft. Understand the Basic Principles Governing Aerodynamic Flows This text consists of ten chapters outlining a range of topics relevant to the understanding of flight dynamics, regulation, and control. The book material describes the basics of flight simulation and control, the basics of nonlinear aircraft dynamics, and the principles of control configured aircraft design. It explains how elasticity of the wings/fuselage can be included in the dynamics and simulation, and highlights the principles of nonlinear stability analysis of both rigid and flexible aircraft. The reader can explore the mechanics of equilibrium flight and static equilibrium, trimmed steady level flight, the analysis of the static stability of an aircraft, static margins, stick-fixed and stick-free, modeling of control surface hinge-moments, and the estimation of the elevator for trim. Introduces case studies of practical control laws for several modern aircraft Explores the evaluation of aircraft dynamic response Applies MATLAB®/Simulink® in determining the aircraft’s response to typical control inputs Explains the methods of modeling both rigid and flexible aircraft for controller design application Written with aerospace engineering faculty and students, engineers, and researchers in mind, Flight Dynamics, Simulation, and Control: For Rigid and Flexible Aircraft serves as a useful resource for the exploration and study of simulation of flight dynamics.
Download or read book Aircraft Dynamics written by Marcello R. Napolitano and published by Wiley Global Education. This book was released on 2012-04-13 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1st edition of Aircraft Dynamics: from Modeling to Simulation by Marcello R. Napolitano is an innovative textbook with specific features for assisting, motivating and engaging aeronautical/aerospace engineering students in the challenging task of understanding the basic principles of aircraft dynamics and the necessary skills for the modeling of the aerodynamic and thrust forces and moments. Additionally the textbook provides a detailed introduction to the development of simple but very effective simulation environments for today demanding students as well as professionals. The book contains an abundance of real life students sample problems and problems along with very useful Matlab codes.
Download or read book Aircraft Control and Simulation written by Brian L. Stevens and published by John Wiley & Sons. This book was released on 2015-11-02 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Aircraft Dynamics written by Cezar Dalca and published by . This book was released on 2016-02-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of mass, known as pitch, roll and yaw. Aerospace engineers develop control systems for vehicle's orientation about its center mass. The control system contain actuators, which apply forces in several directions and generate rotational forces or moments about the aerodynamic center of the aircraft and thus rotate the aircraft in pitch, roll or yaw. Aircraft Dynamics: From Modelling to Simulation provides readers with modern tools for modelling and stimulation of aircraft dynamics. The emphasis is on detailed modelling of aerodynamic thrust forces and moments. Topics include aircraft equations of motion, modelling of aerodynamic thrust forces and moments on the aircraft and analysis of aircraft static and dynamic stability. This book with specific features for assisting, motivating and engaging aeronautical/aerospace engineering students, in the challenging task of understanding the basic principles of aircraft dynamics and the necessary skills for the modelling of the aerodynamic and thrust forces and moments. Additionally, it also provides a detailed introduction to the development of simple but very effective simulation environments for today demanding students as well as working professionals and researchers.
Download or read book Computational Modelling and Simulation of Aircraft and the Environment Volume 2 written by Dominic J. Diston and published by John Wiley & Sons. This book was released on 2024-05-06 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Modelling and Simulation of Aircraft and the Environment An in-depth discussion of aircraft dynamics modelling and simulation This book provides a comprehensive guide to modelling and simulation from basic physical and mathematical principles, giving the reader sufficient information to be able to build computational models of aircraft for the purposes of simulation and evaluation. Highly relevant to practitioners, it takes into account the multi-disciplinary nature of aerospace products and the integrated nature of the models needed in order to represent them. Volume 1- Platform Kinematics and Synthetic Environment focused on the modelling of a synthetic environment in which aircraft operate and its spatial relationship with vehicles that are situated and moving within it. This volume focuses on the modelling of aircraft and the interpretation of their flight dynamics. Key features: Includes chapters on equations of motion, fixed-wing aerodynamics, longitudinal flight and gas turbines, as well as an opening chapter that presents an overview of flight modelling and a concluding chapter that presents a number of additional topics such as aircraft structures and embedded systems. Serves as both a student text and practitioner reference. Follows on from previous Aerospace Series titles, offering a complementary view of vehicles and systems from the perspectives of mathematics, physics and simulation. This book offers a comprehensive guide for senior, graduate and postgraduate students of aerospace engineering as well as professional engineers involved in the modelling and simulation of aircraft.
Download or read book Computational Modelling and Simulation of Aircraft and the Environment Volume 1 written by Dominic J. Diston and published by John Wiley & Sons. This book was released on 2009-04-20 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume of Computational Modelling of Aircraft and the Environment provides a comprehensive guide to the derivation of computational models from basic physical & mathematical principles, giving the reader sufficient information to be able to represent the basic architecture of the synthetic environment. Highly relevant to practitioners, it takes into account the multi-disciplinary nature of the aerospace environment and the integrated nature of the models needed to represent it. Coupled with the forthcoming Volume 2: Aircraft Models and Flight Dynamics it represents a complete reference to the modelling and simulation of aircraft and the environment. All major principles with this book are demonstrated using MATLAB and the detailed mathematics is developed progressively and fully within the context of each individual topic area, thereby rendering the comprehensive body of material digestible as an introductory level text. The author has drawn from his experience as a modelling and simulation specialist with BAE SYSTEMS along with his more recent academic career to create a resource that will appeal to and benefit senior/graduate students and industry practitioners alike.
Download or read book Flight Dynamics written by Robert F. Stengel and published by Princeton University Press. This book was released on 2022-11-01 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated and expanded new edition of an authoritative book on flight dynamics and control system design for all types of current and future fixed-wing aircraft Since it was first published, Flight Dynamics has offered a new approach to the science and mathematics of aircraft flight, unifying principles of aeronautics with contemporary systems analysis. Now updated and expanded, this authoritative book by award-winning aeronautics engineer Robert Stengel presents traditional material in the context of modern computational tools and multivariable methods. Special attention is devoted to models and techniques for analysis, simulation, evaluation of flying qualities, and robust control system design. Using common notation and not assuming a strong background in aeronautics, Flight Dynamics will engage a wide variety of readers, including aircraft designers, flight test engineers, researchers, instructors, and students. It introduces principles, derivations, and equations of flight dynamics as well as methods of flight control design with frequent reference to MATLAB functions and examples. Topics include aerodynamics, propulsion, structures, flying qualities, flight control, and the atmospheric and gravitational environment. The second edition of Flight Dynamics features up-to-date examples; a new chapter on control law design for digital fly-by-wire systems; new material on propulsion, aerodynamics of control surfaces, and aeroelastic control; many more illustrations; and text boxes that introduce general mathematical concepts. Features a fluid, progressive presentation that aids informal and self-directed study Provides a clear, consistent notation that supports understanding, from elementary to complicated concepts Offers a comprehensive blend of aerodynamics, dynamics, and control Presents a unified introduction of control system design, from basics to complex methods Includes links to online MATLAB software written by the author that supports the material covered in the book
Download or read book Modeling and Simulation of a Large Flexible Aircraft written by Dorothea Christina Czernik and published by . This book was released on 2002 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Flight Simulation written by David Allerton and published by John Wiley & Sons. This book was released on 2009-10-27 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Flight Simulation is a comprehensive guide to flight simulator design, covering the modelling, algorithms and software which underpin flight simulation. The book covers the mathematical modelling and software which underpin flight simulation. The detailed equations of motion used to model aircraft dynamics are developed and then applied to the simulation of flight control systems and navigation systems. Real-time computer graphics algorithms are developed to implement aircraft displays and visual systems, covering OpenGL and OpenSceneGraph. The book also covers techniques used in motion platform development, the design of instructor stations and validation and qualification of simulator systems. An exceptional feature of Principles of Flight Simulation is access to a complete suite of software (www.wiley.com/go/allerton) to enable experienced engineers to develop their own flight simulator – something that should be well within the capability of many university engineering departments and research organisations. Based on C code modules from an actual flight simulator developed by the author, along with lecture material from lecture series given by the author at Cranfield University and the University of Sheffield Brings together mathematical modeling, computer graphics, real-time software, flight control systems, avionics and simulator validation into one of the faster growing application areas in engineering Features full colour plates of images and photographs. Principles of Flight Simulation will appeal to senior and postgraduate students of system dynamics, flight control systems, avionics and computer graphics, as well as engineers in related disciplines covering mechanical, electrical and computer systems engineering needing to develop simulation facilities.
Download or read book Flight Dynamics Modeling Characterization and Performance written by Carlo E.D. Riboldi and published by Società Editrice Esculapio. This book was released on 2024-07-22 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text offers an analytic description of the dynamic behavior of an aircraft in flight. The explanation firstly covers in detail the build up and characterization of an analytic model for aircraft in flight. The proposed derivation process allows the reader to obtain an in-depth knowledge of the principles and assumptions employed in the obtainment of the equations describing the dynamic response of an aircraft, in parallel yielding suggestions on how to easily obtain models for other flying machines. Secondly, the model representing aircraft dynamics is populated, employing as much as possible additional simple models, linking basic aerodynamic and geometrical characteristics of an aircraft to the corresponding re- presentation in terms of coefficients. Finally, the dynamic performance of a typical aircraft is analyzed, making use of the notions on the dynamic behavior and on the typical values and balance of aircraft-specific coefficients. In this latter part, following an analysis of a equilibrium conditions, static and dynamic stability qualities are analyzed. An introduction to the conditioning of free dynamics through the design of a stability augmentation system is included as well. This book aims to support engineers as well as engineering students at the graduate level, of- fering a concise yet in-depth description of the dynamic behavior of a flying aircraft, trying to keep a rigorous approach to a greater extent than what is usual in the field. This should hopefully foster the comprehension of the key features in the model derivation process, and consequently the range of validity and applicability of the corresponding formulation. This focus on analytic modeling provides the reader with a key-asset when dealing with engineering problems, for example flight simulation, model identification and flight control design. Therefore, the present books attempts to mark a first relevant step in consolidating the notions required to face more specialized topics in aeronautical engineering.
Download or read book Modeling Flexible Aircraft for Flight Control Design written by E. C. Bekir and published by . This book was released on 1989 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trends to lower structural fraction of aircraft increase flexibility effects. Higher bandwidth control systems combined with these more flexible structures cause more aeroservoelastic interactions. Active, closed-loop control systems allow greater flexibility. To take advantage of this design possibility, an integrated ASE model is needed for conceptual and preliminary design stages of aircraft. This report seeks to define the equations of motion of a flexible aircraft from first principles to aid future discussions between experts in the specialties which make up ASE: aerodynamics, controls, and structures. This theoretical report documents the development of the equations, and states under what conditions the assumptions and approximations are accurate. It consists of 5 sections on different technical areas and a summary section: 1) Linearization of flexible aircraft hybrid-coordinate dynamic equations and inclusion of aerodynamic and gravitational loads; 2) Derivation of equations of motion and stability derivatives for a flexible aircraft vehicle; 3) Aerodynamics for aeroservoelasticity; 4) Model-order reduction for linear systems; and 5) Hydraulic actuator equations for aeroservoelastic modeling. Flight control systems; Servomechanisms. (edc).
Download or read book Modeling and Simulation of Aerospace Vehicle Dynamics written by Peter H. Zipfel and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2007 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book unifies all aspects of flight dynamics for the efficient development of aerospace vehicle simulations. Now in its second edition, its purpose is still to provide the reader with a complete set of tools to build, program, and execute simulations. Unlike other books, it uses tensors for modeling flight dynamics in a form invariant under coordinate transformations. For implementation, the tensors are converted into matrices, resulting in compact computer code. The reader can pick FORTRAN templates of missiles, aircraft, or hypersonic vehicles from the complimentary CADAC4 software to jump-start a particular application, and plot the results with CADAC Studio. It is the only textbook that combines the theory of modeling with hands-on examples of three-, five-, and six-DoF simulations. This new and enlarged edition also serves as the anchor for a self-tutoring, three-part course of aerospace simulations in C++, available from AIAA. Amply illustrated with 318 figures and 44 examples, the text can be used for advanced undergraduate and graduate instructions or for self study. Seventy-eight problems and nine projects further develop the material. The second edition contains two new appendices. The original Appendix C, which reviewed state-of-the-art FORTRAN simulations, has been replaced by the description in three self-study CD-ROMs of aerospace simulations in C++. These CD-ROMs broaden the applications of this book, moving from simple three-degrees-of-freedom cruise missiles to high fidelity missiles, aircraft, and hypersonic vehicles. The new Appendix D sets forth the theoretical foundation of tensor flight dynamics, and it contains proofs of the rotational time derivative and the Euler transformation.
Download or read book Flight Simulation Model Exchange Volume 1 written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-03 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Engineering and Safety Center Review Board sponsored an assessment of the draft Standard, Flight Dynamics Model Exchange Standard, BSR/ANSI-S-119-201x (S-119) that was conducted by simulation and guidance, navigation, and control engineers from several NASA Centers. The assessment team reviewed the conventions and formats spelled out in the draft Standard and the actual implementation of two example aerodynamic models (a subsonic F-16 and the HL-20 lifting body) encoded in the Extensible Markup Language grammar. During the implementation, the team kept records of lessons learned and provided feedback to the American Institute of Aeronautics and Astronautics Modeling and Simulation Technical Committee representative. This document contains the results of the assessment. Murri, Daniel G. and Jackson, E. Bruce Langley Research Center NASA/TM-2011-217085/VOL1, NESC-RP-09-00598, L-20019, NF1676L-12593 WBS 869021.05.07.01.13 SAFETY MANAGEMENT; GUIDANCE (MOTION); FLIGHT SIMULATION; AERODYNAMIC CHARACTERISTICS; NAVIGATION; LIFTING BODIES; LESSONS LEARNED; ENGINEERS; F-16 AIRCRAFT
Download or read book Modelling and Simulation of Gust and Atmospheric Turbulence Effects on Flexible Aircraft Flight Dynamics written by Pau Castells Marin and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prediction of the aircraft response to gust and turbulence is of major importance for different purposes. Gust load analysis is an essential part of aircraft design and certification. The effect of gust and turbulence on aircraft flight dynamics is also of interest. Models able to capture relevant effects at these conditions in early design phases are essential in order to anticipate and assess the aircraft response and flight control laws in realistic atmospheric disturbances before flight test. This work proposes a modelling strategy to capture relevant physics when simulating the aircraft response to gust and turbulence for flight dynamics investigations. The model provides accuracy at a low computational cost as well as consistency with gust loads analysis enabling multidisciplinary design. The approach is based on the integration of a nonlinear quasi-steady flexible flight dynamics model with an unsteady aeroelastic model linearized around a nonlinear steady state. The gust-induced forces have a significant impact on aircraft flight dynamics. Low computing times are required to cover several flight conditions and aircraft parameters. A computationally efficient multipoint aerodynamic model, which captures both unsteady aerodynamic and gust propagation effects, is generated from linearized Computational Fluid Dynamics (CFD) simulations in the frequency domain. The model is identified through a rational function approximation allowing for time domain simulations. A reduced number of additional aerodynamic states is sufficient to capture the main effects at low frequencies for flight dynamics analysis. The impact of dynamic flexibility on the response is also evaluated. Only the most energetic flexible modes are retained to reduce the number of states and ensure a low computation time. The approach is applied to simulate the vertical and lateral response of a passenger aircraft to theoretical disturbance profiles as well as realistic atmospheric turbulence at different flight conditions. Aerodynamic nonlinear effects, such as local stalls due to shock motion, in transonic conditions may appear. The linearized model is able to capture the global aircraft response at these conditions with low amplitude shock motions. Results are compared and validated with a CFD simulation based approach, coupled with a structural dynamics and flight mechanics solver. Measures from flight test are also used to assess the modelling approach. The effect of uncertainties on the response is analysed, in terms of the turbulence variation along the wingspan. Simulation results show that relevant aerodynamic effects due to gust and turbulence are captured in the frequency range of interest for flight dynamics investigations.
Download or read book Modeling Identification and Control of Flexible Aircraft written by Horst Salzwedel and published by . This book was released on 1984 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Mechanics Modeling and Analysis written by Jitendra R. Raol and published by CRC Press. This book was released on 2008-08-20 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design, development, analysis, and evaluation of new aircraft technologies such as fly by wire, unmanned aerial vehicles, and micro air vehicles, necessitate a better understanding of flight mechanics on the part of the aircraft-systems analyst. A text that provides unified coverage of aircraft flight mechanics and systems concept will go a lon
