The Origin Of The Dowty Retarder, Its Working Principle And Application Scenarios.
The Origin Of The Dowty Retarder, Its Working Principle And Application Scenarios.
A damper is a device that provides resistance to movement and consumes movement energy.
Dowty Retarder is also a kind of damper, which is widely used in railway traffic.Various dampers (or shock absorbers) have been used in aerospace, aviation, military, guns, automobiles and other industries to reduce vibration and energy. Since the 1970s, people have gradually transferred these technologies to structural projects such as buildings, bridges, and railways, and their development has been very rapid. In particular, the hydraulic viscous damper with a history of more than 50 years has undergone a large number of experiments, strict examinations, repeated demonstrations, and especially a long process of earthquake testing before it was accepted by the structural engineering community in the United States.
A device that can quickly stop the movable part of the instrument in a stable deflection position. In seismic instruments, the damper is used to absorb the natural vibration energy of the vibration system, and its damping force is generally proportional to the speed of the vibration system. There are mainly three types of liquid dampers, gas dampers and electromagnetic dampers. The damper plays an important role in compensating the small friction and air resistance in the vibration pickup pendulum system and improving the frequency response.
A Hydraulic device that regulates the speed of rail cars as they roll down an inclined track, such as marshalling yards.The devices are built for a specified speed set at the factory.
If the rail car is below the set speed, the device offers no resistance. If the rail car speed is at or greater than the speed setting, an internal valve is activated to provide resistance to the rail car wheel, thus slowing the rail car.
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