Browsing by Author "D. S. Whitehead"

Browsing by Author "D. S. Whitehead"

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  • The analysis of blade vibration due to random excitation 
    D. S. Whitehead (1960)
    This Report gives an account of the experimental measurement of the power spectra of waveforms derived from vibrating blades in axial compressors under running conditions. This enables the damping factor of the blades to ...
  • Bending flutter of unstalled cascade blades at finite deflection 
    D. S. Whitehead (1962)
    This report gives a method of calculating the conditions under which a cascade of unstaUed blades will flutter in their bending mode. The blades are assumed to be flat plates and the flow is assumed to be two-dimensional. ...
  • The effect of compressibility on unstalled torsional flutter 
    D. S. Whitehead (1973)
    The report presents the results of calculations of torsional flutter of unstalled cascade blades at zero mean deflection and subsonic Mach numbers. Three kinds of flutter are found. Subcritical flutter occurs when no ...
  • Force and moment coefficients for vibrating aerofoils in cascade 
    D. S. Whitehead (1960)
    This Report gives a method for calculating the aerodynamic forces and moments acting on unstalled vibrating cascade blades. The forces and moments due to both bending and torsional vibration are calculated, and also due ...
  • Linearized supersonic unsteady flow in cascades 
    T. Nagashima; D. S. Whitehead (1977)
    A linearised theory is presented for the calculation of force and moment coefficients for two-dimensional cascades of blades in supersonic flow. The cases of both supersonic and subsonic axial velocity are treated. The ...
  • A narrow-band spectral analyser for random waveforms 
    D. S. Whitehead (1960)
    The Report describes an analyser which was developed for finding the power spectra of waveforms derived from vibrating axial compressor blades due to random excitation. The bandwidth of the instrument goes down to about ...
  • A single-parameter theory of vortex flow in turbo-machines 
    D. S. Whitehead; G. S. Beavers (1961)
    The paper gives a theory of vortex flow in turbo-machines in which the basic assumption is made that the axial-velocity profiles always belong to a family governed by a single parameter, λ. This parameter is a measure of ...
  • Torsional flutter of unstalled cascade blades at zero deflection 
    D. S. Whitehead (1964)
    The report presents the results of theoretical calculations of torsional flutter of unstalled cascade blades. It is shown that the position of the torsional axis is of great importance, the best position being near the ...
  • Vibration and sound generation in a cascade of flat plates in subsonic flow 
    D. S. Whitehead (1970)
    The report gives particulars of a method of calculation, which has been programmed for a digital computer, for linearized two-dimensional subsonic unsteady flow through a cascade of flat plates operating at zero mean ...

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