A theoretical analysis is conducted concerning the effect of blade loading on the noise output of a free-running propeller in axial motion. The minimization of the mean square sound pressure at a point in space is considered, taking into account constraints on propeller thrust and torque. Attention is given to aerodynamic equations, acoustic equations, the expansion of the aerodynamic variables, and the nonlinear programming formulation.


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    Title :

    Optimum acoustic design of free-running low speed propellers


    Contributors:

    Conference:

    Aircraft Systems and Technology Meeting ; 1977 ; Seattle, WA


    Publication date :

    1977-08-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :



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