Download or read book Optimization of Conceptual Aircraft Design for Stability control and Performance written by John Douglas Jr Galloway and published by . This book was released on 2000 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Conceptual Aircraft Design for Stability Control and Performance written by and published by . This book was released on 2000 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to develop a design optimization capability for the conceptual design of airplanes, where static and dynamic stability and control requirements are addressed simultaneously together with mission and performance requirements. Typically, these requirements are not even considered until after initial aircraft sizing is completed. A design program was created to size the airplane, determine dimensions and locations of tail surfaces (horizontal and vertical tails), control surfaces (elevator, rudder, ailerons), and landing gear, and distribute systems and components all in one step in an optimal manner. Analysis methods used in the calculation of applied aerodynamics, weight and balance, mission analysis, performance, and static 1 dynamic stability and control are all computationally fast, leading to an analysis module that is extremely efficient for optimization or parametric studies. Integration of the optimization modules with the analysis module is done in a way that makes it possible to easily change selections of design variables, constraints, and objective function for different design optimization studies. Results of the analysis program were compared with data from existing aircraft to verify accuracy. These results and those from a number of optimization test cases are included in this thesis. In its present form the new capability is a valuable addition to the computer design tools available for conceptual design of general aviation airplanes. It will be very useful for educational purposes especially in undergraduate and graduate airplane design courses.
Download or read book Aircraft Design written by Daniel P. Raymer and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of the Summerfield Book Award Winner of the Aviation-Space Writers Association Award of Excellence. --Over 30,000 copies sold, consistently the top-selling AIAA textbook title This highly regarded textbook presents the entire process of aircraft conceptual designfrom requirements definition to initial sizing, configuration layout, analysis, sizing, and trade studiesin the same manner seen in industry aircraft design groups. Interesting and easy to read, the book has more than 800 pages of design methods, illustrations, tips, explanations, and equations, and extensive appendices with key data essential to design. It is the required design text at numerous universities around the world, and is a favorite of practicing design engineers.
Download or read book Flight Stability and Automatic Control written by Robert C. Nelson and published by WCB/McGraw-Hill. This book was released on 1998 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Flight Stability and Automatic Control presents an organized introduction to the useful and relevant topics necessary for a flight stability and controls course. Not only is this text presented at the appropriate mathematical level, it also features standard terminology and nomenclature, along with expanded coverage of classical control theory, autopilot designs, and modern control theory. Through the use of extensive examples, problems, and historical notes, author Robert Nelson develops a concise and vital text for aircraft flight stability and control or flight dynamics courses.
Download or read book Aircraft Design written by Daniel P. Raymer and published by American Institute of Aeronautics and Astronautics Incorporated. This book was released on 2018 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Aircraft Design: A Conceptual Approach, Sixth Edition by AIAA Fellow Dr. Daniel P. Raymer provides updates to what has become a standard textbook and reference throughout the world on the subject of aircraft conceptual design. This new edition expands and updates this modern classic including timely topics such as "green aircraft" and electric propulsion, but retains the completeness and readability that have placed it in universities and design offices everywhere. The book covers every topic necessary to the understanding of aircraft design, such as aerodynamics, structures, stability and control, propulsion, etc., with an overview introduction starting from first principles. All are discussed from the point of view of the designer, not the specialist in any given topic area"--
Download or read book A Multidisciplinary Optimization Framework for Flight Dynamics and Control Integration in Aircraft Design written by Ruben Eduardo Perez and published by . This book was released on 2007 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emerging fly-by-wire and fly-by-light technologies increase the possibility of producing aircraft with excellent handling qualities and increased performance across the flight envelope. As a result, flight dynamics and control have become an important discipline in the design of air vehicles; where it is desired to take into account the dynamic characteristics and automatic control capabilities at the earliest stages of design. Traditionally, very limited considerations have been made at the early conceptual stage regarding this discipline. Some simplified methodologies used to size the control surfaces (i.e. horizontal and vertical tail surfaces) result in sub-optimal designs due to their inability to capture the interactions among the sizing of control surfaces, their control effectors (i.e. elevator and rudder) and it systems, and their effect on the general dynamic behaviour of the aircraft. Such designs have great limitations on control and handling, which lead to costly design modifications at the later stages of design. This research presents a methodology that enables flight dynamics and control integration at the conceptual design stage using multidisciplinary design optimization. It finds feasible aircraft configurations which meet specified mission requirements concurrently with the stability, control, and handling quality requirements at multiple flight conditions within the flight envelope. Furthermore, the proposed methodology exploits two different control integration strategies. The first one allows for individualized control system design at each flight phase, while the second one focuses on simultaneous stabilization and optimization using one single controller. The application of the methodology leads to designs that exploit active control interactions and have better performance and flying characteristics than the traditional sizing process over a broad range of aircraft sizes.
Download or read book Performance and Stability of Aircraft written by J. Russell and published by Butterworth-Heinemann. This book was released on 1996-08-02 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance, stability, control and response of aircraft are key areas of aeronautical engineering. This book provides a comprehensive overview to the underlying theory and application of what are often perceived to be difficult topics. Initially it introduces the reader to the fundamental concepts underlying performance and stability, including lift characteristics and estimation of drag, before moving on to a more detailed analysis of performance in both level and climbing flight. Pitching motion is then described followed by a detailed discussion of all aspects of both lateral and longitudinal stability and response. It finishes with an examination of inertial cross-coupling and automatic control and stabilization. The student is helped to think in three dimensions throughout the book by the use of illustrative examples. The progression from one degree of freedom to six degrees of freedom is gradually introduced. The result is an approach dealing specifically with all aspects of performance, stability and control that fills a gap in the current literature. It will be essential reading for all those embarking on degree level courses in aeronautical engineering and will be of interest to all with an interest in stability and dynamics, including those in commercial flying schools who require an insight into the performance of their aircraft. - Ideal for undergraduate aeronautical engineers - Three-dimensional thinking introduced through worked examples and simple situations
Download or read book Airplane Design Determination of stability control and performance characteristics far and military requirements written by Jan Roskam and published by . This book was released on 1988 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Aviation Aircraft Design written by Snorri Gudmundsson and published by Butterworth-Heinemann. This book was released on 2021-10-31 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: General Aviation Aircraft Design, Second Edition, continues to be the engineer's best source for answers to realistic aircraft design questions. The book has been expanded to provide design guidance for additional classes of aircraft, including seaplanes, biplanes, UAS, high-speed business jets, and electric airplanes. In addition to conventional powerplants, design guidance for battery systems, electric motors, and complete electric powertrains is offered. The second edition contains new chapters: - Thrust Modeling for Gas Turbines - Longitudinal Stability and Control - Lateral and Directional Stability and Control These new chapters offer multiple practical methods to simplify the estimation of stability derivatives and introduce hinge moments and basic control system design. Furthermore, all chapters have been reorganized and feature updated material with additional analysis methods. This edition also provides an introduction to design optimization using a wing optimization as an example for the beginner. Written by an engineer with more than 25 years of design experience, professional engineers, aircraft designers, aerodynamicists, structural analysts, performance analysts, researchers, and aerospace engineering students will value the book as the classic go-to for aircraft design. - The printed book is now in color, with 1011 figures and illustrations! - Presents the most common methods for conceptual aircraft design - Clear presentation splits text into shaded regions, separating engineering topics from mathematical derivations and examples - Design topics range from the "new" 14 CFR Part 23 to analysis of ducted fans. All chapters feature updated material with additional analysis methods. Many chapters have been reorganized for further help. Introduction to design optimization is provided using a wing optimization as an example for the beginner - Three new chapters are offered, two of which focus on stability and control. These offer multiple practical methods to simplify the estimation of stability derivatives. The chapters introduce hinge moments and basic control system design - Real-world examples using aircraft such as the Cirrus SR-22 and Learjet 45
Download or read book Aircraft Aerodynamic Design written by András Sóbester and published by John Wiley & Sons. This book was released on 2014-09-23 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimal aircraft design is impossible without a parametric representation of the geometry of the airframe. We need a mathematical model equipped with a set of controls, or design variables, which generates different candidate airframe shapes in response to changes in the values of these variables. This model's objectives are to be flexible and concise, and capable of yielding a wide range of shapes with a minimum number of design variables. Moreover, the process of converting these variables into aircraft geometries must be robust. Alas, flexibility, conciseness and robustness can seldom be achieved simultaneously. Aircraft Aerodynamic Design: Geometry and Optimization addresses this problem by navigating the subtle trade-offs between the competing objectives of geometry parameterization. It beginswith the fundamentals of geometry-centred aircraft design, followed by a review of the building blocks of computational geometries, the curve and surface formulations at the heart of aircraft geometry. The authors then cover a range of legacy formulations in the build-up towards a discussion of the most flexible shape models used in aerodynamic design (with a focus on lift generating surfaces). The book takes a practical approach and includes MATLAB®, Python and Rhinoceros® code, as well as ‘real-life’ example case studies. Key features: Covers effective geometry parameterization within the context of design optimization Demonstrates how geometry parameterization is an important element of modern aircraft design Includes code and case studies which enable the reader to apply each theoretical concept either as an aid to understanding or as a building block of their own geometry model Accompanied by a website hosting codes Aircraft Aerodynamic Design: Geometry and Optimization is a practical guide for researchers and practitioners in the aerospace industry, and a reference for graduate and undergraduate students in aircraft design and multidisciplinary design optimization.
Download or read book Unmanned Aircraft Design written by Mohammad Sadraey and published by Morgan & Claypool Publishers. This book was released on 2017-09-19 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fundamental principles, design procedures, and design tools for unmanned aerial vehicles (UAVs) with three sections focusing on vehicle design, autopilot design, and ground system design. The design of manned aircraft and the design of UAVs have some similarities and some differences. They include the design process, constraints (e.g., g-load, pressurization), and UAV main components (autopilot, ground station, communication, sensors, and payload). A UAV designer must be aware of the latest UAV developments; current technologies; know lessons learned from past failures; and they should appreciate the breadth of UAV design options. The contribution of unmanned aircraft continues to expand every day and over 20 countries are developing and employing UAVs for both military and scientific purposes. A UAV system is much more than a reusable air vehicle or vehicles. UAVs are air vehicles, they fly like airplanes and operate in an airplane environment. They are designed like air vehicles; they have to meet flight critical air vehicle requirements. A designer needs to know how to integrate complex, multi-disciplinary systems, and to understand the environment, the requirements and the design challenges and this book is an excellent overview of the fundamentals from an engineering perspective. This book is meant to meet the needs of newcomers into the world of UAVs. The materials are intended to provide enough information in each area and illustrate how they all play together to support the design of a complete UAV. Therefore, this book can be used both as a reference for engineers entering the field or as a supplementary text for a UAV design course to provide system-level context for each specialized topic.
Download or read book Airplane Design written by Jan Roskam and published by . This book was released on 1988 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airplane Design VII written by Jan Roskam and published by . This book was released on 1985 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unmanned Aircraft Design written by Mohammad H. Sadraey and published by Springer Nature. This book was released on with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airplane Performance Stability and Control written by Courtland D. Perkins and published by . This book was released on 1950 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acsynt Inner Loop Flight Control Design Study written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Ames Research Center developed the Aircraft Synthesis (ACSYNT) computer program to synthesize conceptual future aircraft designs and to evaluate critical performance metrics early in the design process before significant resources are committed and cost decisions made. ACSYNT uses steady-state performance metrics, such as aircraft range, payload, and fuel consumption, and static performance metrics, such as the control authority required for the takeoff rotation and for landing with an engine out, to evaluate conceptual aircraft designs. It can also optimize designs with respect to selected criteria and constraints. Many modern aircraft have stability provided by the flight control system rather than by the airframe. This may allow the aircraft designer to increase combat agility, or decrease trim drag, for increased range and payload. This strategy requires concurrent design of the airframe and the flight control system, making trade-offs of performance and dynamics during the earliest stages of design. ACSYNT presently lacks means to implement flight control system designs but research is being done to add methods for predicting rotational degrees of freedom and control effector performance. A software module to compute and analyze the dynamics of the aircraft and to compute feedback gains and analyze closed loop dynamics is required. The data gained from these analyses can then be fed back to the aircraft design process so that the effects of the flight control system and the airframe on aircraft performance can be included as design metrics. This report presents results of a feasibility study and the initial design work to add an inner loop flight control system (ILFCS) design capability to the stability and control module in ACSYNT. The overall objective is to provide a capability for concurrent design of the aircraft and its flight control system, and enable concept designers to improve performance by exploiting the interrelationships between aircraft...
Download or read book ACSYNT Inner Loop Flight Control Design Study written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2020-03-26 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Ames Research Center developed the Aircraft Synthesis (ACSYNT) computer program to synthesize conceptual future aircraft designs and to evaluate critical performance metrics early in the design process before significant resources are committed and cost decisions made. ACSYNT uses steady-state performance metrics, such as aircraft range, payload, and fuel consumption, and static performance metrics, such as the control authority required for the takeoff rotation and for landing with an engine out, to evaluate conceptual aircraft designs. It can also optimize designs with respect to selected criteria and constraints. Many modern aircraft have stability provided by the flight control system rather than by the airframe. This may allow the aircraft designer to increase combat agility, or decrease trim drag, for increased range and payload. This strategy requires concurrent design of the airframe and the flight control system, making trade-offs of performance and dynamics during the earliest stages of design. ACSYNT presently lacks means to implement flight control system designs but research is being done to add methods for predicting rotational degrees of freedom and control effector performance. A software module to compute and analyze the dynamics of the aircraft and to compute feedback gains and analyze closed loop dynamics is required. The data gained from these analyses can then be fed back to the aircraft design process so that the effects of the flight control system and the airframe on aircraft performance can be included as design metrics. This report presents results of a feasibility study and the initial design work to add an inner loop flight control system (ILFCS) design capability to the stability and control module in ACSYNT. The overall objective is to provide a capability for concurrent design of the aircraft and its flight control system, and enable concept designers to improve performance by exploiting the interrelationships between aircraft...
