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Noise constraints effecting optimal propeller designs
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miller, C. J. Sullivan, J. P. |
| Copyright Year | 1985 |
| Description | A preliminary design tool for advanced propellers was 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 tradeoffs 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. |
| File Size | 664852 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850011613 |
| Archival Resource Key | ark:/13960/t7pp3zz9f |
| Language | English |
| Publisher Date | 1985-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Propeller Blades Performance Tests Noise Reduction Aircraft Noise Aerodynamic Noise Aircraft Design Design Analysis Aerodynamic Characteristics Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
