The viscous fluid dampers are hydraulic devices that dissipate the kinetic energy of seismic events and cushion the impact between structures. They are versatile and can be designed to allow free movement as well as controlled damping of a structure to protect from wind load, thermal motion or seismic events.
The viscous fluid damper is consist of oil cylinder, piston, piston rod, lining, medium, pin head and other main parts. The piston could make reciprocating motion in the oil cylinder. The piston is equipped with damping structure and the oil cylinder is full of fluid damping medium.