Analysis of Working Principles and Introduction to Applications of Damping Shock Absorbers

When you hear the term "damping," what is your first reaction? Does it sound a bit unusual? In reality, however, damping shock absorbers made using damping principles are everywhere in our daily lives, providing significant convenience.  

As is widely known, various frictions and other obstacles that attenuate free vibration are referred to as damping. "Special" components installed in structural systems to provide resistance to motion and reduce kinetic energy are called damping shock absorbers. Essentially, a damping shock absorber is a device that supplies resistance and dissipates energy.  

The use of damping to absorb energy is not a new technology. In industries such as aerospace, aviation, military, firearms, and automotive, various damping shock absorbers (or vibration dampers) have long been employed to absorb energy. Since the 1970s, these technologies have been gradually applied to structural engineering in buildings, bridges, railways, and other fields, where they have developed rapidly. In particular, hydraulic viscous dampers, with a history of over 50 years, have undergone extensive testing, rigorous verification, and repeated validation—especially through seismic tests—before gaining acceptance in the American structural engineering community.  

Common applications include:  

- Spring dampers  

- Hydraulic dampers  

- Pulse dampers  

- Rotary dampers  

- Wind dampers  

- Viscous dampers  

- Damping hinges  

- Damping slides  

- Furniture hardware  

- Cabinet hardware  

Damping shock absorbers for sliding doors come in three types: mechanical, pneumatic, and hydraulic. When force is applied to open a sliding door, the damping shock absorber generates a counterforce. After a person passes through and releases the door, it closes automatically without slamming into the frame. With the damping shock absorber, the door slides more smoothly, and its built-in silent function ensures no harsh noise is produced during opening or closing.  

Though damping shock absorbers are compact in design, they play a substantial role in our lives—bringing convenience and creating a more comfortable home environment.

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