Damper is a device that provides motion resistance and reduces motion energy. Using damping to absorb energy and reduce vibration is not a new technology. In aerospace, aviation, military industry, guns, automobiles and other industries, various dampers (or shock absorbers) have been used to reduce vibration and dissipate energy.

Since 1970s, people have gradually applied these technologies to buildings, bridges, railways and other structural projects, which have developed very rapidly. In particular, the hydraulic viscous damper with a history of more than 50 years experienced a long process of a large number of experiments, strict examination and repeated argumentation, especially earthquake tests, before it was accepted by the American structural engineering community.

Expandable material: Damper is just a component. When used in different places or different working environments, it has different shock absorption effects. Damper: used to reduce vibration; Buffer: used for shock prevention, allowing low-speed movement, locking when the speed or acceleration exceeds the corresponding value, forming a rigid support.

Various applications include: spring damper, hydraulic damper, pulse damper, rotary damper, wind damper, viscous damper, damping hinge, damping slide rail, furniture hardware, cabinet hardware and so on.

References:

Baidu encyclopedia-damper