Fluid-elastomeric damper assembly including internal pumping mechanism

A fluid-elastomeric damper assembly (10) operable for damping motion between a first structure (22) and a second structure (20) including a housing structure (24) grounded to the first structure (22) and a plurality of elastomer seals (12, 16) coupled to the housing structure, the housing structure (24) and the plurality of elastomer seals (12, 16) defining a fluid-elastomeric chamber (40) operable for containing a fluid. The fluid-elastomeric damper assembly also including one or more piston structures (80) disposed within the housing structure and the fluid-elastomeric chamber (40), the one or more piston structures grounded to the first structure (22) and driven by the second structure, and the one or more piston structures (80) each including a first substantially fluid-filled chamber (32) and a second substantially-fluid-filled (34) chamber in communication via an orifice (86), the first substantially fluid-filled chamber (32) and the second substantially fluid-filled chamber also (34) in communication with the fluid-elastomeric chamber (40). The housing structure is operable for pumping the fluid through the orifice (86).