| 摘要 |
Gas turbine engine (18), broadband damping systems (20), and methods for producing broadband-damped gas turbine engine are provided. In one embodiment, the gas turbine engine (18) includes an engine case (38), a rotor assembly (66) mounted within the engine case (38) for rotation about a rotational axis, and a broadband damping system (20) disposed between the rotor assembly (66) and the engine case (38). The broadband damping system (20) includes a first set of three parameter axial dampers (60, 61, 62) angularly spaced around the rotational axis, and a second set of three parameter axial dampers (63, 64, 65) angularly spaced around the rotational axis and coupled in parallel with the first set of three parameter axial dampers (60, 61, 62). The first and second sets of three parameter axial dampers (60, 61, 62, 63, 64, 65) are tuned to provide peak damping at different rotational frequencies to increase the damping bandwidth of the broadband damping system (20) during operation of the gas turbine engine (18). |
