Download or read book Notes on the Dynamic Response of an Aircraft to Gusts on the Variation of Gust Velocity Along the Flight Path written by Anne Burns and published by . This book was released on 1954 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of records showing the time histories of strains and accelerations at various parts of a Lancaster flying in turbulent air is presented and discussed. The records include specimens taken in cloud at moderate altitudes and in clear air at low altitudes ... Examination of the records is divided into two parts: The first deals with the dynamic response of the aircraft to the imposed gusts, with particular reference to the effects of spanwise variation of gust velocity and of damping. In the second part, an attempt is made to deduce the time history and magnitude of the gusts from the measutred response of the aircraft. A point of interest in the curves of gust velocity against time is that a large up-gust tends to be preceded by a large down-gust and vice versa.
Download or read book Notes on the Dynamic Response of an Aircraft to Gusts and on the Variation of Gust Velocity Along the Flight Path written by Anne Burns and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1957 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report written by Aeronautical Research Council (Great Britain) and published by . This book was released on 1961 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes its Reports, which are also issued separately.
Download or read book Methods for Obtaining Desired Helicopter Stability Characteristics and Procedures for Stability Predictions written by F. B. Gustafson and published by . This book was released on 1957 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part 1 of this report presents a brief review of methods available to the helicopter designer for obtaining desired stability characteristics by modifications to the airframe design. The discussion is based on modifications made during the establishment of flying-qualities criteria and includes sample results of theoretical studies of additional methods. The conclusion is reached that it is now feasible to utilize combinations of methods whereby stability-parameter values are realized which in turn provide the desired stability characteristics. Part 2 reviews some of the methods of predicting rotor stability derivatives. The procedures by which these rotor derivatives are employed to estimate helicopter stability characteristics have been summarized.
Download or read book Research Abstracts written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1951 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Aircraft Aeroelasticity and Loads written by Jan Robert Wright and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeroelastic phenomena arising from the interaction of aerodynamic, elastic and inertia forces, and the loads resulting from flight / ground manoeuvres and gust / turbulence encounters, have a significant influence upon aircraft design. The prediction of aircraft aeroelastic stability, response and loads requires application of a range of interrelated engineering disciplines. This new textbook introduces the foundations of aeroelasticity and loads for the flexible aircraft, providing an understanding of the main concepts involved and relating them to aircraft behaviour and industrial practice. This book includes the use of simplified mathematical models to demonstrate key aeroelastic and loads phenomena including flutter, divergence, control effectiveness and the response and loads resulting from flight / ground manoeuvres and gust / turbulence encounters. It provides an introduction to some up-to-date methodologies for aeroelastics and loads modelling. It lays emphasis on the strong link between aeroelasticity and loads. It also includes provision of MATLAB and SIMULINK programs for the simplified analyses. It offers an overview of typical industrial practice in meeting certification requirements.
Download or read book Introduction to Aircraft Aeroelasticity and Loads written by Jan R. Wright and published by John Wiley & Sons. This book was released on 2015-02-23 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Aircraft Aeroelasticity and Loads, Second Edition is an updated new edition offering comprehensive coverage of the main principles of aircraft aeroelasticity and loads. For ease of reference, the book is divided into three parts and begins by reviewing the underlying disciplines of vibrations, aerodynamics, loads and control, and then goes on to describe simplified models to illustrate aeroelastic behaviour and aircraft response and loads for the flexible aircraft before introducing some more advanced methodologies. Finally, it explains how industrial certification requirements for aeroelasticity and loads may be met and relates these to the earlier theoretical approaches used. Key features of this new edition include: Uses a unified simple aeroelastic model throughout the book Major revisions to chapters on aeroelasticity Updates and reorganisation of chapters involving Finite Elements Some reorganisation of loads material Updates on certification requirements Accompanied by a website containing a solutions manual, and MATLAB® and SIMULINK® programs that relate to the models used Introduction to Aircraft Aeroelasticity and Loads, Second Edition is a must-have reference for researchers and practitioners working in the aeroelasticity and loads fields, and is also an excellent textbook for senior undergraduate and graduate students in aerospace engineering.
Download or read book WADC Technical Note written by United States. Wright Air Development Division and published by . This book was released on 1957 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Recurrence Matrix Solution for the Dynamic Response of Aircraft in Gusts written by John C. Houbolt and published by . This book was released on 1950 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through the use of difference equations and matrix notation a systematic procedure is developed for the calculation of the structural response of an aircraft flying through a gust. The method takes into account wing bending and twisting flexibilities, fuselage flexibility, vertical and pitching motion of the airplane, and some tail forces. Strip theory is used, but approximate three-dimensional and compressibility corrections can be made without difficulty. Either sharp-edge or arbitrary gusts may be treated.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lateral Response of Airplanes to Random Atmospheric Turbulence written by John Marshall Eggleston and published by . This book was released on 1960 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: The report is separated into two parts. In the first part the theoretical basis for calculating the lateral motions of an airplane flying through continuous random atmospheric turbulence is presented. The lateral motions are derived in terms of (1) the transfer functions relating the motion in the various degrees of freedom to the yawing moment, rolling moment, and side force, (2) the statistical forces and moments at the center of gravity due to gust velocities acting on the lifting surfaces of the airplane, and (3) the power spectra of the three orthogonal components of gust velocity acting on the airplane along the flight path. The method takes into account the random variations of gust velocity across the span and along the fuselage. Solutions are given in the form of equations relating the power spectra of the angular motions of the airplane to the power spectra of the gust velocities.
Download or read book U S Government Research Reports written by and published by . This book was released on 1954 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gust Loads on Aircraft written by Frederic M. Hoblit and published by AIAA Education. This book was released on 1988 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an authoritative and practical presentation of the determination of gust loads on airplanes, especially continuous turbulence gust loads. The text emphasizes the basic concepts involved in gust load determination and enriches the material with discussion of important relationships, definitions of terminology and nomenclature, historical perspective, and explanations of relevant calculations. Coverage begins with discrete-gust idealization of the gust structure and moves to continuous-turbulence gust loads. Also considered are loads combination and design criteria, gust-response equations of motion, spanwise variation of vertical gust velocity, nonlinear systems, and analysis of gust-response flight-test data.
Download or read book Aerodynamic Studies written by Zbiginew Krzywoblocki and published by . This book was released on 1957 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Ultralight Aircraft Motion in Vertical Gusts written by Robert T. Jones and published by . This book was released on 1977 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reports and Memoranda written by and published by . This book was released on 1968 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with no. 650 each hundredth number contains a list of the Reports and memoranda published since the last list.
