Download or read book Composite Wing Conceptual Design written by and published by . This book was released on 1973 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design, analysis, fabrication and test work are described which were performed to identify and develop the potentials of the advanced composite truss web wing box concept. The aircraft on which the effort is based is the Advanced Medium STOL Transport (AMST). The truss web concept is unique in that it utilizes no ribs or bulkheads to redistribute chordwise loads or to support the covers. A weight savings of 36.6 percent with respect to the metal wing box is achieved for the baseline truss web utilizing a boron-epoxy tapered sandwich lower cover and cutout-lightened substructure. Optimization studies showed an available range of weight savings from 28 to 56 percent, depending on the specific materials used, number of cells in the configuration, method of handling stress relief at bolted joints, bonded joint details, and tailoring of panel stiffening and substructure lightening detail. A multi-rib/multi-web design optimization study is reported. Finite anisotropic element analyses for the wing and final test component are described. Laminate tests utilizing mixed graphite materials are described. Element and subcomponent tests are conducted to verify features of the design, including the fillet bond concept for joining webs to covers. The testing effort culminates in a sweepbreak wing-fuselage intersection component which includes a stress-relieved bolted upper cover and a fillet-bonded lower cover. It achieves 94 percent of ultimate combined bending and torsion load. The major design features under test are validated since failure occurs in a conventional locally overstressed area.

Download or read book Conceptual Design of Navy Composite Wings written by General Dynamics. Convair Division and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conceptual Design of Navy Composite Wings written by W. F. Wennhold and published by . This book was released on 1973 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Convair proposes T300/5208 for the baseline graphite/epoxy sys-tem. It is presently under evaluation for numerous large appli- cations, its uniformity and controllability lend it readily to low-cost, automated layup techniques, and it has outstanding resistance to moisture degradation. Therefore, this system is expected to become the major graphite/epoxy material for aircraft applications. Convair has generated extensive design allowable data on the Avco 5505 under Contract AF33(615)-5257. Convair prefers the Avco 5505 system because of its somewhat higher tem-perature resistance and its extensive history. (Author, modified-PL).

Download or read book Design and Optimization of Laminated Composite Materials written by Zafer Gürdal and published by John Wiley & Sons. This book was released on 1999-01-28 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kompositwerkstoffe wurden traditionell in der Raumfahrt verwendet, weil Gewicht dort ein wichtiger Faktor ist. Mittlerweile hat man diese Werkstoffe auch im Bereich des Maschinenbaus eingesetzt. Dies ist das erste Buch, das Mechanik und Optimierungstechniken für Kompositwerkstoffe aufbereitet. Beigefügt ist eine Diskette mit Anwendungen und Lernprogrammen. (02/99)

Download or read book Advanced Aircraft Design written by Egbert Torenbeek and published by John Wiley & Sons. This book was released on 2013-05-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.

Download or read book Aircraft Conceptual Design Synthesis written by Denis Howe and published by . This book was released on 2000 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft Conceptual Design Synthesis means design by fitness-for-purpose. Design engineers can jump off from the point of given parameters and requirements – required performance, payloads and other factors. This is the first book for the aeronautical designer devoted to guiding the reader through this highly effective conceptual design synthesis process. This forms the procedure for the initial stage of the aircraft design process – the interpretation of a requirement into the preliminary layout. A logical design sequence is developed utilizing original modules to represent propulsion, lift, drag, mass, and performance. Aircraft Conceptual Design Synthesis includes a disk of spreadsheets that provides core data. Unlike existing approaches, the design synthesis method can be applied to novel aircraft concepts. CONTENTS INCLUDE The design process Aircraft configuration Flight regime and powerplant considerations Fuselage layout Configuration of the wing Basic lift, drag and mass representations Performance estimation Parametric analysis and optimisation Analysis of concept design “This is an important landmark book and in my view will become a standard by which others will be compared” – Dr E C P Ransom, Kingston University, UK

Download or read book Conceptual Aircraft Design written by Ajoy Kumar Kundu and published by John Wiley & Sons. This book was released on 2019-04-08 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a Comprehensive Introduction to Aircraft Design with an Industrial Approach This book introduces readers to aircraft design, placing great emphasis on industrial practice. It includes worked out design examples for several different classes of aircraft, including Learjet 45, Tucano Turboprop Trainer, BAe Hawk and Airbus A320. It considers performance substantiation and compliance to certification requirements and market specifications of take-off/landing field lengths, initial climb/high speed cruise, turning capability and payload/range. Military requirements are discussed, covering some aspects of combat, as is operating cost estimation methodology, safety considerations, environmental issues, flight deck layout, avionics and more general aircraft systems. The book also includes a chapter on electric aircraft design along with a full range of industry standard aircraft sizing analyses. Split into two parts, Conceptual Aircraft Design: An Industrial Approach spends the first part dealing with the pre-requisite information for configuring aircraft so that readers can make informed decisions when designing vessels. The second part devotes itself to new aircraft concept definition. It also offers additional analyses and design information (e.g., on cost, manufacture, systems, role of CFD, etc.) integral to conceptual design study. The book finishes with an introduction to electric aircraft and futuristic design concepts currently under study. Presents an informative, industrial approach to aircraft design Features design examples for aircraft such as the Learjet 45, Tucano Turboprop Trainer, BAe Hawk, Airbus A320 Includes a full range of industry standard aircraft sizing analyses Looks at several performance substantiation and compliance to certification requirements Discusses the military requirements covering some combat aspects Accompanied by a website hosting supporting material Conceptual Aircraft Design: An Industrial Approach is an excellent resource for those designing and building modern aircraft for commercial, military, and private use.

Download or read book Study on Utilization of Advanced Composites in Commercial Aircraft Wing Structures Volume 1 Executive Summary written by and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effort required by commercial transport manufacturers to accomplish the transition from current construction materials and practices to extensive use of composites in aircraft wings was investigated. The engineering and manufacturing disciplines which normally participate in the design, development, and production of an aircraft were employed to ensure that all of the factors that would enter a decision to commit to production of a composite wing structure were addressed. A conceptual design of an advanced technology reduced energy aircraft provided the framework for identifying and investigating unique design aspects. A plan development effort defined the essential technology needs and formulated approaches for effecting the required wing development. The wing development program plans, resource needs, and recommendations are summarized.

Download or read book Commercial Aircraft Composite Technology written by Ulf Paul Breuer and published by Springer. This book was released on 2016-05-10 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on lectures held at the faculty of mechanical engineering at the Technical University of Kaiserslautern. The focus is on the central theme of societies overall aircraft requirements to specific material requirements and highlights the most important advantages and challenges of carbon fiber reinforced plastics (CFRP) compared to conventional materials. As it is fundamental to decide on the right material at the right place early on the main activities and milestones of the development and certification process and the systematic of defining clear requirements are discussed. The process of material qualification - verifying material requirements is explained in detail. All state-of-the-art composite manufacturing technologies are described, including changes and complemented by examples, and their improvement potential for future applications is discussed. Tangible case studies of high lift and wing structures emphasize the specific advantages and challenges of composite technology. Finally, latest R&D results are discussed, providing possible future solutions for key challenges such as low cost high performance materials, electrical function integration and morphing structures.

Download or read book Composites written by James A. Quinn and published by CRC Press. This book was released on 1999-09-22 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: From properties and processes to design and construction analysis, this book collects the information, data and equations that are needed to design simply and economically on a day-to-day basis. Composites: Design Manual presents the information necessary to facilitate the design and procurement of FRP, Graphite and Aramid Composites. It describes mechanical, physical, and environmental properties of composites and materials such as resins, catalysts, reinforcements, multi-axials, and release agents. Over 100 tables, figures, data sheets, and examples simplify the practicalities of composites.

Download or read book Design and Analysis of Composite Structures written by Christos Kassapoglou and published by John Wiley & Sons. This book was released on 2011-07-05 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Analysis of Composite Structures enables graduate students and engineers to generate meaningful and robust designs of complex composite structures. Combining analysis and design methods for structural components, the book begins with simple topics such as skins and stiffeners and progresses through to entire components of fuselages and wings. Starting with basic mathematical derivation followed by simplifications used in real-world design, Design and Analysis of Composite Structures presents the level of accuracy and range of applicability of each method. Examples taken from actual applications are worked out in detail to show how the concepts are applied, solving the same design problem with different methods based on different drivers (e.g. cost or weight) to show how the final configuration changes as the requirements and approach change. Provides a toolkit of analysis and design methods to most situations encountered in practice, as well as analytical frameworks and the means to solving them for tackling less frequent problems. Presents solutions applicable to optimization schemes without having to run finite element models at each iteration, speeding up the design process and allowing examination of several more alternatives than traditional approaches. Includes guidelines showing how decisions based on manufacturing considerations affect weight and how weight optimization may adversely affect the cost. Accompanied by a website at www.wiley.com/go/kassapoglou hosting lecture slides and solutions to the exercises for instructors.

Download or read book A Study on the Utilization of Advanced Composites in Commercial Aircraft Wing Structure Executive Summary written by D. J. Watts and published by . This book was released on 1978 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Study on Utilization of Advanced Composites in Commercial Aircraft Wing Structures written by and published by . This book was released on 1978 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was performed to plan the effort required by commercial transport manufacturers to accomplish the transition from current construction materials and practices to extensive use of composites in wings of aircraft that enter service in the 1990 time-period. The engineering and manufacturing disciplines which normally participate in the design, development and production of a new aircraft were employed to ensure that all of the factors that would enter a Company decision to commit to production of a composite wing structure were addressed. A conceptual design of an advanced technology reduced energy aircraft provided the framework for identifying and investigating unique design aspects. A plan development effort defined the essential technology needs and formulated approaches for effecting the required wing development. Presented are two separate programs: (1) a j6int government-industry material development program, and (2) a task-oriented wing structure development program. This report presents the wing development program plans, resource needs and the supporting data for the development plans. (MM).

Download or read book Structural Design of a Composite Wing Structure written by Pedro Luis Jimenez Soler and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to illustrate step by step the design of the Composite Wing Structure of the external wing for an Unmanned Aerial Vehicle- UAV. The design is conducted using software tools for Finite Element Analysis, such as, NASTRAN and ANSYS to find the structural integrity limits for composite materials and fittings. Data for this study were obtained from AEROTECH Research Group at Universidad de San Buenaventura, Bogota, Colombia. Finite Element Methods are used in order to evaluate the static strength, maximum stresses and buckling behavior of composite structures. Sections, such as spars, webs and caps, ribs, skins and stringers assemblies are analyzed to get the best strength to weight ratio and its manufacturing procedure. The analysis should be especially useful to professionals in Aerospace and Mechanical Engineering, or anyone else who may be considering utilizing design methodologies to analyze structural configurations of composite structures using Finite Element Methods and the conceptual manufacturing procedures for further fabrication.

Download or read book Preliminary Design of Graphite Composite Wing Panels for Commercial Transport Aircraft written by and published by . This book was released on 1980 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fibrous Composites in Structural Design written by Edward M. Lenoe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourth Conference on Fibrous Composites in Structural Design was a successor to the First-to-Third Conferences on Fibrous Composites in Flight Vehicle Design sponsored by the Air Force (First and Second Conferences, September 1973 and May 1974) and by NASA (Third Conference, November 1975) which were aimed at focusing national attention on flight vehicle applications of a new class of fiber reinforced materials, the advanced com posites, which afforded weight savings and other advantages which had not been previously available. The Fourth Conference, held at San Diego, California, 14-17 November 1978, was the fi rst of these conferences to be jointly sponsored by the Army, Navy and Ai r Force together with NASA, as well as being the first to give attention to non-aerospace applications of fiber reinforced composites. While the design technology for aerospace applications has reached a state of relative maturity, other areas of application such as mi litary bridging, flywheel energy storage systems, ship and surface vessel components and ground vehicle components are in an early stage of development, and it was an important objective to pinpoint where careful attention to structural design was needed in such applications to achfeve maximum structural performance payoff together with a high level of reliability and attractive economics.