Gas turbine engine fan drive gear system damper

摘要

A gas turbine engine includes a fan section. A turbine section is coupled to the fan section via a geared architecture. The geared architecture includes a torque frame and a flex support spaced apart from one another at a location. A gear train is supported by the torque frame. A viscous damper is provided between the torque frame and the flex support at the location.

主权项

1. A gas turbine engine comprising:
a fan section; first and second members spaced apart from one another at a location; a gear train supported by the first member; a turbine section coupled to the fan section via a geared architecture, the geared architecture includes the gear train; a damper provided between the first member and the second member at the location, and configured to damp at least natural frequencies between the first and second members; the first member is a torque frame, and the second member is a flex support; and wherein the flex support has a bellow, the flex support is grounded to a static structure, and multiple dampers are arranged circumferentially between the torque frame and the flex support.