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A maneuvering flight noise model for helicopter mission planning
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | May, Benjamin Rau, Robert Hobbs, Christopher Greenwood, Eric |
| Copyright Year | 2015 |
| Description | A new model for estimating the noise radiation during maneuvering flight is developed in this paper. The model applies the Quasi-Static Acoustic Mapping (Q-SAM) method to a database of acoustic spheres generated using the Fundamental Rotorcraft Acoustics Modeling from Experiments (FRAME) technique. A method is developed to generate a realistic flight trajectory from a limited set of waypoints and is used to calculate the quasi-static operating condition and corresponding acoustic sphere for the vehicle throughout the maneuver. By using a previously computed database of acoustic spheres, the acoustic impact of proposed helicopter operations can be rapidly predicted for use in mission-planning. The resulting FRAME-QS model is applied to near-horizon noise measurements collected for the Bell 430 helicopter undergoing transient pitch up and roll maneuvers, with good agreement between the measured data and the FRAME-QS model. |
| File Size | 871845 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20160005979 |
| Archival Resource Key | ark:/13960/t75t8n93x |
| Language | English |
| Publisher Date | 2015-05-05 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Flight Tests Sound Waves Helicopters Bell Aircraft Aerodynamic Noise Aircraft Maneuvers Mission Planning Spheres Noise Measurement Data Bases Microphones Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
