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| Total Pages | : 28 |
| Release | : 1994 |
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| Total Pages | : 26 |
| Release | : 1987 |
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| Total Pages | : 34 |
| Release | : 2002 |
| Genre | : Airplanes |
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Flight vibration data are analyzed for the NASA F- 1 5B/Flight Test Fixture 11 test bed. Understanding the in-flight vibration environment benefits design and integration of experiments on the test bed. The power spectral density (PSD) of accelerometer flight data is analyzed to quantify the in-flight vibration environment from a frequency of 15 Hz to 1325 Hz. These accelerometer data are analyzed for typical flight conditions and maneuvers. The vibration data are compared to flight-qualification random vibration test standards. The PSD levels in the lateral axis generally are greater than in the longitudinal and vertical axes and decrease with increasing frequency. At frequencies less than approximately 40 Hz, the highest PSD levels occur during takeoff and landing.
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| Total Pages | : 18 |
| Release | : 1989 |
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| Total Pages | : 22 |
| Release | : 1988 |
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| Author | : Richard P. Hallion |
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| Total Pages | : 420 |
| Release | : 1984 |
| Genre | : Flight |
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| Total Pages | : 390 |
| Release | : 1995 |
| Genre | : Aeronautics |
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| Total Pages | : 66 |
| Release | : 1993 |
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| Author | : Tom Proulx |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 362 |
| Release | : 2011-04-02 |
| Genre | : Technology & Engineering |
| ISBN | : 1441993029 |
Advanced Aerospace Applications, Volume 1. Proceedings of the 29th IMAC, A Conference and Exposition on Structural Dynamics, 2011, the first volume of six from the Conference, brings together 32 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on Aeroelasticity, Ground Testing, Dynamic Testing of Aerospace Structures, and Random Vibration.
| Author | : Roelof Vos |
| Publisher | : Springer |
| Total Pages | : 561 |
| Release | : 2015-03-04 |
| Genre | : Technology & Engineering |
| ISBN | : 9401797471 |
Written to teach students the nature of transonic flow and its mathematical foundation, this book offers a much-needed introduction to transonic aerodynamics. The authors present a quantitative and qualitative assessment of subsonic, supersonic and transonic flow around bodies in two and three dimensions. The book reviews the governing equations and explores their applications and limitations as employed in modeling and computational fluid dynamics. Some concepts, such as shock and expansion theory, are examined from a numerical perspective. Others, including shock-boundary-layer interaction, are discussed from a qualitative point of view. The book includes 60 examples and more than 200 practice problems. The authors also offer analytical methods such as Method of Characteristics (MOC) that allow readers to practice with the subject matter. The result is a wealth of insight into transonic flow phenomena and their impact on aircraft design, including compressibility effects, shock and expansion waves, shock-boundary-layer interaction and aeroelasticity.
