Method of reducing noise in a rotary electric machine, attachment apparatus for attaching the stator of a rotary electric machine and for implementing the method, and a rotary electric machine provided with such apparatus

摘要

The invention concerns attachment apparatus for a stator of a rotary electric machine, said machine comprising a rotor, a stator coaxial with the rotor, an airgap between the stator and the rotor, and a casing provided with attachment points for attaching the stator;P P according to the invention, the attachment apparatus comprises attachment elements mounted between the attachment points and the stator; PPeach attachment element having an anisotropic stiffness comprising a tangential component Kt for taking up in part the static forces of the machine, and a radial component Kr for relieving in part the dynamic forces of the stator relative to the casing;PP the resultant of the tangential components Kt taking up the static forces of the rotary electric machine with an axial displacement or a radial displacement of the stator that is less than or equal to a predetermined value that is less than the airgap; andPP the resultant of the radial components Kr relieves the dynamic forces of the stator with a predetermined coefficient of transmission to the casing.