A bearing damper assembly for a bearing compartment of a gas turbine engine, the bearing compartment comprising a squirrel cage and a bearing support disposed radially outward from a portion of the squirrel cage, the bearing damper assembly comprising: an outer sleeve (84; 84') extending axially from the bearing support, wherein the outer sleeve (84; 84') comprises an inner surface that is tapered; a fluid supply channel extending through a portion of the outer sleeve (84; 84') and configured to extend through a portion of the bearing support; a fluid source that is fluidly connected to the fluid supply channel; and an inner sleeve (86; 86') configured to be attached to the squirrel cage, wherein the inner sleeve (86; 86') is disposed radially inward from the outer sleeve (84; 84'), wherein the inner sleeve (86; 86') comprises an outer surface that is tapered, characterized in that: the outer sleeve (84; 84') comprises a set of grooves disposed on the inner surface of the outer sleeve (84; 84'); the inner sleeve (86; 86') comprises a set of thread elements disposed on the outer surface of the inner sleeve (86; 86'); wherein the inner sleeve is threadably engaged with the outer sleeve (84; 84'), wherein the outer surface of the inner sleeve (86; 86') engages the inner surface of the outer sleeve (84; 84') to define a gap extending therebetween, wherein relative rotation between the inner sleeve (86; 86') and outer sleeve (84; 84') increases or decreases a size of the gap, and wherein the gap is fluidly connected to the fluid source to receive a fluid damper (124; 124') via the fluid supply channel. an outer sleeve (84; 84') extending axially from the bearing support, wherein the outer sleeve (84; 84') comprises an inner surface that is tapered; a fluid supply channel extending through a portion of the outer sleeve (84; 84') and configured to extend through a portion of the bearing support; a fluid source that is fluidly connected to the fluid supply channel; and an inner sleeve (86; 86') configured to be attached to the squirrel cage, wherein the inner sleeve (86; 86') is disposed radially inward from the outer sleeve (84; 84'), wherein the inner sleeve (86; 86') comprises an outer surface that is tapered, characterized in that: the outer sleeve (84; 84') comprises a set of grooves disposed on the inner surface of the outer sleeve (84; 84'); the inner sleeve (86; 86') comprises a set of thread elements disposed on the outer surface of the inner sleeve (86; 86'); wherein the inner sleeve is threadably engaged with the outer sleeve (84; 84'), wherein the outer surface of the inner sleeve (86; 86') engages the inner surface of the outer sleeve (84; 84') to define a gap extending therebetween, wherein relative rotation between the inner sleeve (86; 86') and outer sleeve (84; 84') increases or decreases a size of the gap, and wherein the gap is fluidly connected to the fluid source to receive a fluid damper (124; 124') via the fluid supply channel. the outer sleeve (84; 84') comprises a set of grooves disposed on the inner surface of the outer sleeve (84; 84'); the inner sleeve (86; 86') comprises a set of thread elements disposed on the outer surface of the inner sleeve (86; 86'); wherein the inner sleeve is threadably engaged with the outer sleeve (84; 84'), wherein the outer surface of the inner sleeve (86; 86') engages the inner surface of the outer sleeve (84; 84') to define a gap extending therebetween, wherein relative rotation between the inner sleeve (86; 86') and outer sleeve (84; 84') increases or decreases a size of the gap, and wherein the gap is fluidly connected to the fluid source to receive a fluid damper (124; 124') via the fluid supply channel.