Rotor assembly having integral damping member for deployment within momentum control device

A rotor assembly for deployment within a momentum control device including a rotor assembly housing, the rotor assembly comprising:

• a rotor shaft rotatably mounted within the rotor assembly housing, the rotor shaft having a fixed end portion and a floating end portion;
• a floating bearing cartridge disposed around the floating end portion of the rotor shaft;
• and
• a radially-compliant damping member mechanically coupled between the floating bearing cartridge and the rotor assembly housing, as taken along an emitted disturbance path, the radially-compliant damping member reducing the transmission of vibratory forces from the floating bearing cartridge to the rotor assembly housing to reduce emitted disturbances during operation of the momentum control device;
• wherein the radially-compliant damping member comprises at least one of the group consisting of:
• (i) a plurality of curved flexures, (ii) a multi-lobed ribbon, and (iii) a bellows.

A rotor assembly for deployment within a momentum control device including a rotor assembly housing, the rotor assembly comprising:

• a rotor shaft rotatably mounted within the rotor assembly housing, the rotor shaft having a fixed end portion and a floating end portion;
• a floating bearing cartridge disposed around the floating end portion of the rotor shaft;
• a fixed bearing cartridge disposed around the fixed end portion of the rotor shaft;
• an annular elastomeric member disposed between the fixed bearing cartridge and the rotor assembly housing;
• and
• a radially-compliant damping member disposed adjacent the floating bearing cartridge, the radially-compliant damping member mechanically coupled between the floating bearing cartridge and the rotor assembly housing, as taken along an emitted disturbance path, the radially-compliant damping member cooperating with the annular elastomeric member to reduce the transmission of vibratory forces from the floating bearing cartridge to the rotor assembly housing to reduce emitted disturbances during operation of the momentum control device.