Three functions and application areas of hydraulic dampers

A hydraulic damper is a device that uses the damping effect of a liquid (usually oil) to slow down movement or absorb shock. It is mainly used to control the movement speed of equipment or structures, reduce vibration and relieve impact force. Hydraulic dampers are widely used in many fields such as construction engineering, mechanical equipment, automobile suspension systems, bridges and earthquake protection systems.

Working principle
The operation of the hydraulic damper is based on the flow resistance of the liquid. When the external shock or vibration causes the piston of the damper to move, the piston pushes the oil through the small hole or valve inside the damper. Due to the resistance of the liquid flow, the movement energy is converted into heat energy, which reduces the movement speed of the piston and plays a role in absorbing and buffering external shocks.

Main functions
1. Slow down movement: By controlling the flow of liquid, the hydraulic damper can slow down the movement speed of objects and avoid sudden displacement or acceleration.
2. Absorb vibration: In machinery or building structures, hydraulic dampers are used to absorb vibrations and reduce vibrations in the system caused by movement or environmental factors (such as wind, earthquakes, etc.).
3. Control impact force: Oil dampers can absorb most of the impact force and prevent equipment or structures from being damaged by sudden force.

Application areas
1. Construction and bridge engineering: Oil dampers are used to reduce the vibration of buildings or bridges under earthquake or strong wind conditions and improve the seismic resistance of the structure.
2. Mechanical equipment: Used to absorb the vibration and impact generated during the operation of mechanical equipment and extend the service life of the equipment.
3. Vehicle suspension system: Similar to shock absorbers, oil dampers are used to reduce the vibration caused by uneven roads during driving and improve driving comfort.
4. Industrial equipment: Used to slow down the braking process of sports equipment and prevent equipment from being damaged by impact force.

Advantages
- Precise damping control: Continuous and adjustable damping force is achieved through liquid flow to adapt to various vibration and impact conditions.
- Simple structure: Usually the structure is relatively simple and easy to maintain.
- Wide applicability: From small machinery to large building structures, oil dampers can adapt to the use needs of various scales and conditions.

Disadvantages
- Higher cost: Some high-performance oil dampers are expensive, especially when used in large structures.
- Maintenance requirements: Over time, the oil may need to be replaced due to wear or leakage, increasing maintenance costs.

In general, oil dampers are an efficient vibration and shock control device that is widely used in various industrial, engineering and daily equipment, and can significantly improve the safety and stability of equipment and structures.