Author: Elijah William Turner
Publisher:
ISBN:
Category : Aeronautics in meteorology
Languages : en
Pages : 60
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 Turbulance Using Power Spectral Density Analysis Techniques
Author: Elijah William Turner
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 136
Book Description
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 136
Book Description
Dynamic Response of Airplanes to Atmospheric Turbulence Including Flight Data on Input and Response
Author: John C. Houbolt
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 128
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.
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 128
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
Author: John Marshall Eggleston
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 68
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.
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 68
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
Author: Elijah W. Turner
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 150
Book Description
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 150
Book Description
A Method for Estimating Some Longitudinal and Lateral Rigid-body Responses of Airplanes to Continuous Atmospheric Turbulence
Author: Ellwood L. Peele
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 52
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.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 52
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
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1102
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1102
Book Description
An Investigation of the Overlap Between the Statistical Discrete Gust and the Power Spectral Density Analysis Methods
Author: Boyd Perry (III)
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
Computed Lateral Power Spectral Density Response of Conventional and STOL Airplanes to Random Atmospheric Turbulence
Author: Jacob H. Lichtenstein
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 100
Book Description
Publisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 100
Book Description
Statistics of Some Atmospheric Turbulence Records Relevant to Aircraft Response Calculations
Author: William D. Mark
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 260
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 260
Book Description