An Exposition on Aircraft Response to Atmospheric Turbulence Using Power Spectral Density Analysis Techniques

An Exposition on Aircraft Response to Atmospheric Turbulence Using Power Spectral Density Analysis Techniques PDF Author: Elijah William Turner
Publisher:
ISBN:
Category : Aeronautics in meteorology
Languages : en
Pages : 60

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Book Description
The traditional power spectral density design procedure is reviewed. The evolution of modeling atmospheric turbulence is traced from the discrete gust to the present continuous representation. The modeling of an aircraft structure as a lumped parameter linear system excited by oscillatory air forces is outlined, and solutions to the resulting equations of motion are indicated. Expressions for the number of exceedances of specified load levels are presented and compared for stationary Gaussian turbulence and for stationary Gaussian patch turbulence. The motivation for modeling atmospheric turbulence as a nonstationary process is addressed, and several models for nonstationary turbulence are reviewed.

An Exposition on Aircraft Response to Atmospheric Turbulence Using Power Spectral Density Analysis Techniques

An Exposition on Aircraft Response to Atmospheric Turbulence Using Power Spectral Density Analysis Techniques PDF Author: Elijah William Turner
Publisher:
ISBN:
Category : Aeronautics in meteorology
Languages : en
Pages : 60

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Book Description
The traditional power spectral density design procedure is reviewed. The evolution of modeling atmospheric turbulence is traced from the discrete gust to the present continuous representation. The modeling of an aircraft structure as a lumped parameter linear system excited by oscillatory air forces is outlined, and solutions to the resulting equations of motion are indicated. Expressions for the number of exceedances of specified load levels are presented and compared for stationary Gaussian turbulence and for stationary Gaussian patch turbulence. The motivation for modeling atmospheric turbulence as a nonstationary process is addressed, and several models for nonstationary turbulence are reviewed.

An Exposition on Aircraft Response to Atmospheric Turbulance Using Power Spectral Density Analysis Techniques

An Exposition on Aircraft Response to Atmospheric Turbulance Using Power Spectral Density Analysis Techniques PDF Author: Elijah William Turner
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 136

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Book Description


Dynamic Response of Airplanes to Atmospheric Turbulence Including Flight Data on Input and Response

Dynamic Response of Airplanes to Atmospheric Turbulence Including Flight Data on Input and Response PDF Author: John C. Houbolt
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 128

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Book Description
A coordinated account of flight measurements of random atmospheric turbulence, of calculated and experimentally determined airplane transfer functions, and of analytical procedures for determining output responses is given based on power spectral techniques. Implications of these techniques for load prediction and for design are discussed, and brief review of basic procedures and mathematics involved is also included.

The Lateral Response of Airplanes to Random Atmospheric Turbulence

The Lateral Response of Airplanes to Random Atmospheric Turbulence PDF Author: John Marshall Eggleston
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 68

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Book Description
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.

Categorization of Atmospheric Turbulence in Terms of Aircraft Response for Use in Turbulence Reports and Forecasts

Categorization of Atmospheric Turbulence in Terms of Aircraft Response for Use in Turbulence Reports and Forecasts PDF Author: Elijah W. Turner
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 150

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Book Description


A Method for Estimating Some Longitudinal and Lateral Rigid-body Responses of Airplanes to Continuous Atmospheric Turbulence

A Method for Estimating Some Longitudinal and Lateral Rigid-body Responses of Airplanes to Continuous Atmospheric Turbulence PDF Author: Ellwood L. Peele
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 52

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Book Description
A method is presented for estimating some lateral and longitudinal rigid-body responses of airplanes to random atmospheric turbulence. Estimates of center-of-gravity load factors and motion responses can be made simply and easily through the use of parametric charts. Sample calculations are included to illustrate the method.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1102

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Book Description


An Investigation of the Overlap Between the Statistical Discrete Gust and the Power Spectral Density Analysis Methods

An Investigation of the Overlap Between the Statistical Discrete Gust and the Power Spectral Density Analysis Methods PDF Author: Boyd Perry (III)
Publisher:
ISBN:
Category :
Languages : en
Pages : 15

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Book Description


Computed Lateral Power Spectral Density Response of Conventional and STOL Airplanes to Random Atmospheric Turbulence

Computed Lateral Power Spectral Density Response of Conventional and STOL Airplanes to Random Atmospheric Turbulence PDF Author: Jacob H. Lichtenstein
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 100

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Book Description


Statistics of Some Atmospheric Turbulence Records Relevant to Aircraft Response Calculations

Statistics of Some Atmospheric Turbulence Records Relevant to Aircraft Response Calculations PDF Author: William D. Mark
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 260

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Book Description