Experimental and Predicted Lateral-directional Dynamic-response Characteristics of a Large Flexible 35 Degree Swept-wing Airplane at an Altitude of 35,000 Feet PDF Download
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Author: Stuart C. Brown
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 80
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Book Description
Calculated simplified transfer function coefficients based on the lateral-directional equations of motion are compared with coefficients obtained by matching transient time histories with an analog computer. Aerodynamic derivatives extracted from measured transfer function coefficients are also compared with estimated derivatives. In general, good agreement between measured and estimated values was obtained.
Author: Stuart C. Brown
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 80
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Book Description
Calculated simplified transfer function coefficients based on the lateral-directional equations of motion are compared with coefficients obtained by matching transient time histories with an analog computer. Aerodynamic derivatives extracted from measured transfer function coefficients are also compared with estimated derivatives. In general, good agreement between measured and estimated values was obtained.
![Experimental and Predicted Lateral-directional Dynamic-response Characteristics of a Large Flexible 35 [degrees] Swept-wing Airplane at an Altitude of 35,000 Feet PDF](https://books.google.com/books/content/images/frontcover/7iGytgAACAAJ?fife=w80-h100)
Author: Stuart C. Brown
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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Author:
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ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The lateral-directional dynamic-response characteristics of a large flexible airplane are presented for flight conlitions of 0.6 to 0.82 Mach number and an altitude of 35,OOO feet. Transient responses at various stations on the airplane to aileron and rudder pulse-type disturbances have been recorded and converted into frequency-response form. A frequency range of O.5 to 25 radians per second is presented, which includes the Dutch roll and rolling modes and also three structural modes The measured frequency responses are compared with those obtained from transfer functions based on the lateral-directional equations of motion, which include first-order effects of structural deflections. Reasonably good agreement is obtained in the low frequency range corresponding to the lateral-directional modes. However, in the higher frequency range, the effects of the structural modes are sufficiently large so that these predictions become inadequate even for the quantities measured near the center of gravity. Comparisons are also made with frequency responses obtained from transfer-function coefficients calculated for the rigid airplane to indicate the effects of flexibility. Calculated simplified transfer function coefficients based on the lateral-directional equations of motion are compared with coefficients obtained by matching transient time histories with an analog computer. Aerodynamic derivatives extracted from measured transfer function coefficients are also compared with estimated derivatives. In general, good agreement between measured and estimated values was obtained.
Author: Henry A. Cole (Jr.)
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 74
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Author: Clarence A. Syvertson
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 304
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Author: Henry A. Cole
Publisher:
ISBN:
Category :
Languages : en
Pages : 39
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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages :
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Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 900
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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 56
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Book Description
Author: Henry A. Cole
Publisher:
ISBN:
Category :
Languages : en
Pages : 39
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Book Description
