Method and system for determining the angular position of a...

Details Method and system for determining the angular position of a... Method and system for determining the angular position of a...

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 21/00 (2006.01) G01H 1/00 (2006.01)

Patent

CA 2728491

The invention relates to a method for determining the angular position of a first turbojet engine rotor, which consists in: generating at least one vibration while the first rotor is rotating, each vibration being generated as the first rotor passes through one and the same reference angular position; detecting the vibrations generated; obtaining (E30) the angular position at a given moment of a second rotor of the turbojet engine with respect to the angular position that it occupied at a reference instant representative of the detection of one of the vibrations, this second rotor being rotationally coupled to the first rotor and having a rotational speed different from that of the first rotor; and determining (E40), from the angular position of the second rotor, the angular position of the first rotor at this given instant.

L'invention concerne un procédé de détermination de ta position angulaire d'un premier rotor de turboréacteur, consistant à: générer au moins une vibration au cours d'une rotation du premier rotor, chaque vibration étant générée lors du passage du premier rotor par une même position angulaire de référence; détecter les vibrations générées; obtenir (E30) la position angulaire à un instant donné d'un second rotor du turboréacteur par rapport à la position angulaire qu'il occupait à un instant de référence représentatif de la détection d'une des vibrations, ce second rotor étant couplé en rotation au premier rotor et ayant une vitesse de rotation différente de celle du premier rotor; et déterminer (E40), à partir de la position angulaire du second rotor, la position angulaire du premier rotor à cet instant donné.

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