Engine bearing damper with interrupted oil film

An engine comprising:

• a compressor;
• a combustor located axially aft of the compressor;
• a turbine located axially aft of the combustor;
• a shaft coupled to the compressor and the turbine;
• and
• an engine oil damper including:
• a bearing support coupled to the shaft;
• and
• a housing radially outward from the bearing support;
• wherein at least one oil flow restrictor is formed with respect to at least one of the bearing support and the housing,
• wherein the at least one oil flow restrictor is configured to at least partially interrupt a flow of oil in an annulus radially defined between the bearing support and the housing.

An engine oil damper comprising:

• a bearing support;
• and
• a housing radially outward from the bearing support and co-axial with the bearing support;
• where the housing includes a circumferential perimeter that includes a plurality of radial projections such that a first radial clearance distance between the housing and the bearing support is less between each of the plurality of radial projections and the bearing support than a second radial clearance distance between the housing circumferential perimeter adjacent to one of the radial projections and the bearing support.