Method of optimizing the noise generated in flight by a rotorcraft
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United States of America Patent
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Dec 26, 2023
Grant Date -
Oct 1, 2020
app pub date -
Mar 27, 2020
filing date -
Mar 29, 2019
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Abstract
A method of optimizing the noise generated by a hybrid power plant of a rotorcraft in flight, the hybrid power plant driving a main rotor of the rotorcraft in rotation and being provided with at least one engine, with at least one electric machine, and with at least one electrical energy source that electrically powers the electric machine. The method includes a determination step for determining a required power delivered by the hybrid power plant and that is required for the flight phase, and a distribution step for distributing the required power between the at least one engine and the electric machine as a function of a target noise level and of the required power for the flight phase, as well as of a model for the noise generated by the at least one engine as a function of one of its parameters.
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