A method of reducing noise includes: driving a first propulsor (21A) using one or more of the first electrical motor (25A) and the first thermal engine (22A), and driving a second propulsor (21B) of the second hybrid power plant (20B) using one or more of the second electrical motor (25B) and the second thermal engine (22B); receiving a signal indicative of an initial combined noise signature; determining, from the signal, that an initial amplitude variation of a periodically fluctuating amplitude of the initial combined noise signature is greater than an amplitude variation threshold; modulating a thrust produced by the second hybrid power plant (20B), by changing a power output of the second thermal engine (22B) or the second electrical motor (25B), to produce a modulated combined noise signature having a modulated amplitude variation less than the initial amplitude variation; and compensating for a difference in thrusts generated by the first hybrid power plant (20A) and the second hybrid power plant (20B).


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    Title :

    METHOD OF REDUCING NOISE OF AIRCRAFT HAVING HYBRID POWER PLANTS


    Additional title:

    VERFAHREN ZUR GERÄUSCHMINDERUNG BEI EINEM FLUGZEUG MIT HYBRIDANTRIEBEN
    PROCÉDÉ DE RÉDUCTION DU BRUIT D'UN AÉRONEF AYANT DES SYSTÈMES DE PROPULSION HYBRIDES


    Contributors:

    Publication date :

    2023-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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