Maximum noise abatement trajectories.Minimum noise annoyance trajectories for developing STOL operation procedures are obtained by modulating five control variables in two dimensions. The performance index is formulated such that it explicitly assigns the same relative importance to thrust as it does to distances between discrete listeners and the aircraft. However, using a steepest descent optimization program, results indicate that it is preferable to keep the thrusters at their maximum value to minimize the integrated annoyance rather than to reduce thrust which would lower the instantaneous annoyance. Thrust decreases below its bound only when the instantaneous noise at a listener is limited.
Document ID
19720050406
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zeldin, S.
Speyer, J. (MIT Cambridge, Mass., United States)
Date Acquired
August 6, 2013
Publication Date
June 1, 1972
Subject Category
Aircraft
Report/Patent Number
AIAA PAPER 72-665
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Fluid and Plasma Dynamics Conference
Location: Boston, MA
Start Date: June 26, 1972
End Date: June 28, 1972
Sponsors: American Institute of Aeronautics and Astronautics