Scientific and Technical Aerospace Reports PDF Download
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 608
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Author: United States. Naval Air Systems Command
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 152
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 938
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Author: T. F. Langham
Publisher:
ISBN:
Category : Jet planes, Military
Languages : en
Pages : 64
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An analytical study has been conducted to determine the usefulness of rotation-balance aerodynamic data in calculating the steady-state spin motion of a current fighter aircraft configuration. The analysis utilizes a nonlinear six-degree-of-freedom digital computer program to generate time histories of airplane spinning motion. Three aerodynamic data models were formulated and used in the spin analysis. The first model represents the conventional use of static and forced-oscillation data; the second model uses the static and forced-oscillation data but restricts the forced-oscillation data to that component of the total angular rate that is oscillatory; and the third model incorporates rotation-balance data from model 2 and restricts the rotation-balance data to that component of the total angular rate that is steady state. The results indicate a significantly different motion resulting from the three aerodynamic data models when compared to each other and to full-scale flight test steady-state spin motions. The motions produced by the rotation-balance aerodynamic model more closely simulate the motions exhibited during the flight tests. (Author).
Author: G.S. Dulikravich
Publisher: Elsevier
ISBN: 0080535143
Category : Computers
Languages : en
Pages : 433
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Inverse Problems are found in many areas of engineering mechanics and there are many successful applications e.g. in non-destructive testing and characterization of material properties by ultrasonic or X-ray techniques, thermography, etc. Generally speaking, inverse problems are concerned with the determination of the input and the characteristics of a system, given certain aspects of its output. Mathematically, such problems are ill-posed and have to be overcome through development of new computational schemes, regularization techniques, objective functionals, and experimental procedures. This volume contains a selection of peer-reviewed papers presented at the International Symposium on Inverse Problems in Engineering Mechanics (ISIP2001), held in February of 2001 in Nagano, Japan, where recent development in inverse problems in engineering mechanics and related topics were discussed. The following general areas in inverse problems in engineering mechanics were the subjects of the ISIP2001: mathematical and computational aspects of inverse problems, parameter or system identification, shape determination, sensitivity analysis, optimization, material property characterization, ultrasonic non-destructive testing, elastodynamic inverse problems, thermal inverse problems, and other engineering applications. These papers can provide a state-of-the-art review of the research on inverse problems in engineering mechanics.
Author:
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ISBN:
Category : Airplanes
Languages : en
Pages : 404
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Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 466
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1262
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Author:
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ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1688
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