Noise Constraints Effecting Optimal Propeller Designs

Format:

Conference/Event

Author/Creator:

Miller, C. J. (Christopher J.), author.

Conference Name:

General Aviation Aircraft Meeting and Exposition (1985-04-16 : Wichita, Kansas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1985

Summary:

A preliminary design tool for advanced propellers has been developed combining a fast vortex lattice aerodynamic analysis, a fast subsonic point source noise analysis, and an optimization scheme using a conjugate directions method. Twist, chord and sweep distributions are optimized to simultaneously improve both the aerodynamic performance and the noise observed at a fixed relative position.The optimal noise/performance trade-offs for straight and advanced concept blades are presented. The techniques used include increasing the blade number, blade sweep, reducing the rotational speed, shifting the spanwise loading and diameter changes. Some methods yield improvement in both efficiency and noise

Notes:

Vendor supplied data

Publisher Number:

850871

Access Restriction:

Restricted for use by site license