Integrated Approach to the Dynamics and Control of Maneuvering Flexible Aircraft

Integrated Approach to the Dynamics and Control of Maneuvering Flexible Aircraft
Author: National Aeronautics and Space Adm Nasa
Publisher:
Total Pages: 78
Release: 2018-09-23
Genre: Science
ISBN: 9781723960123

This work uses a fundamental approach to the problem of simulating the flight of flexible aircraft. To this end, it integrates into a single formulation the pertinent disciplines, namely, analytical dynamics, structural dynamics, aerodynamics, and controls. It considers both the rigid body motions of the aircraft, three translations (forward motion, sideslip and plunge) and three rotations (roll, pitch and yaw), and the elastic deformations of every point of the aircraft, as well as the aerodynamic, propulsion, gravity and control forces. The equations of motion are expressed in a form ideally suited for computer processing. A perturbation approach yields a flight dynamics problem for the motions of a quasi-rigid aircraft and an 'extended aeroelasticity' problem for the elastic deformations and perturbations in the rigid body motions, with the solution of the first problem entering as an input into the second problem. The control forces for the flight dynamics problem are obtained by an 'inverse' process and the feedback controls for the extended aeroservoelasticity problem are determined by the LQG theory. A numerical example presents time simulations of rigid body perturbations and elastic deformations about 1) a steady level flight and 2) a level steady turn maneuver.Waszak, Martin R. (Technical Monitor) and Meirovitch, Leonard and Tuzcu, IlhanLangley Research CenterAEROSERVOELASTICITY; AERODYNAMICS; FLEXIBLE WINGS; AIRCRAFT MANEUVERS; FLIGHT SIMULATION; AIRCRAFT CONTROL; ROLL; SIDESLIP; YAW; ELASTIC DEFORMATION; EQUATIONS OF MOTION; LINEAR QUADRATIC GAUSSIAN CONTROL; FEEDBACK CONTROL

Advanced Multifunctional Lightweight Aerostructures

Advanced Multifunctional Lightweight Aerostructures
Author: Kamran Behdinan
Publisher: John Wiley & Sons
Total Pages: 256
Release: 2021-01-29
Genre: Technology & Engineering
ISBN: 1119756723

Offers a review of the newest methodologies for the characterization and modelling of lightweight materials and structures Advances in Multifunctional Lightweight Structures offers a text that provides and in-depth analyses of the thermal, electrical and mechanical responses of multi-functional lightweight structures. The authors, noted experts on the topic, address the most recent and innovative methodologies for the characterization and modelling of lightweight materials and discuss various shell and plate theories. They present multifunctional materials and structures and offer detailed descriptions of the complex modelling of these structures. The text is divided into three sections that demonstrate a keen understanding and awareness for multi-functional lightweight structures by taking a unique approach. The authors explore multi-disciplinary modelling and characterization alongside benchmark problems and applications, topics that are rarely approached in this field. This important book: • Offers an analyses of the thermal, electrical and mechanical responses of multi-functional lightweight structures • Covers innovative methodologies for the characterization and modelling of lightweight materials and structures • Presents a characterization of a wide variety of novel materials • Considers multifunctional novel structures with potential applications in different high-tech industries • Includes efficient and highly accurate methodologies Written for professionals, engineers and researchers in industrial and other specialized research institutions, Advances in Multifunctional Lightweight Structures offers a much needed text to the design practices of existing engineering building services and how these methods combine with recent developments.

Flight Stability and Automatic Control

Flight Stability and Automatic Control
Author: Robert C. Nelson
Publisher:
Total Pages: 464
Release: 1998
Genre: History
ISBN:

This edition of this this flight stability and controls guide features an unintimidating math level, full coverage of terminology, and expanded discussions of classical to modern control theory and autopilot designs. Extensive examples, problems, and historical notes, make this concise book a vital addition to the engineer's library.

Control of Linear Parameter Varying Systems with Applications

Control of Linear Parameter Varying Systems with Applications
Author: Javad Mohammadpour
Publisher: Springer Science & Business Media
Total Pages: 554
Release: 2012-03-08
Genre: Technology & Engineering
ISBN: 146141833X

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.

Introduction to Aircraft Flight Mechanics

Introduction to Aircraft Flight Mechanics
Author: Thomas R. Yechout
Publisher: AIAA
Total Pages: 666
Release: 2003
Genre: Aerodynamics
ISBN: 9781600860782

Based on a 15-year successful approach to teaching aircraft flight mechanics at the US Air Force Academy, this text explains the concepts and derivations of equations for aircraft flight mechanics. It covers aircraft performance, static stability, aircraft dynamics stability and feedback control.

Aircraft Control and Simulation

Aircraft Control and Simulation
Author: Brian L. Stevens
Publisher: John Wiley & Sons
Total Pages: 768
Release: 2015-10-02
Genre: Technology & Engineering
ISBN: 1118870972

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.