Safran Aircraft Engines

Anthony Bernard Germain Lafitte

Frédéric Jean-Bernard Pouzadoux

Jean-Michel Roux

Julien Alexis Louis Ricordeau

Alexandre Anfriani

Jean-Frederic Pierre Joseph Bruhat

Frederic Jean-Bernard Pouzadoux

Jean-Frédéric Pierre Joseph Bruhat

A method for simulating the distribution of blades on a turbomachine disc includes: providing blade configurations, each being associated with a blade and including at least one measurement of a balancing parameter measured on the associated blade; and searching for and selecting a bladed-disc distribution combining the configurations of blades supplied with positions on the disc, the bladed disc distribution encouraging the attainment of at least one criterion defined according to a predetermined cost function dependent on the balancing parameter measurements, and the searching and selecting being performed by successive iterations.

Method for simulating the distribution of blades on a turbomachine disc

The invention relates to a method () for manufacturing a turbomachine fan comprising a plurality of blades mounted on a disc extending along a longitudinal axis, said method comprising the following steps of: &#x2014;measuring () at least one structural parameter of each of the blades in the cold state, and, for each of the blades, estimating () at least one structural parameter in operation relating to a blade from the structural parameter(s) measured on said blade in the cold state, &#x2014;determining () an optimal sequence of the blades around the disc from the structural parameters estimated in operation for each of the blades, and &#x2014;mounting () the blades on the disc in the optimal sequence thus determined.

Method for manufacturing a turbomachine fan having a reduced noise level at multiple rotational frequencies of said turbomachine

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Moissy-Cramayel, France

Anthony Bernard Germain Lafitte