A damper for a turbine rotor assembly of a gas turbine engine includes a width dimension, a height dimension, and a length dimension, and includes a forward plate and an aft plate. The aft plate is larger than the forward plate along the width and height dimensions and includes an upper portion, which has a non-symmetric configuration and extends in the height dimension. The damper further includes a longitudinal structure extending in the length dimension and connecting the forward plate and the aft plate.