The hazard of the dowty retarder and dead dowty retarder to driving

When a train with an empty car or a caboose passes through the dowty retarder zone, because the roof has a reaction force on the wheels, if the pulling speed is too fast or instantaneous acceleration and deceleration, this reaction force will cause the empty car or the caboose to "bounce" Phenomenon, in the event of a "dead dowty retarder", the "bounce" phenomenon will increase. Moreover, when the train is pulled out, it cannot be a standard straight line, and the force transmitted by the locomotive traction to each vehicle cannot be in the same straight line, which increases the instability of the vehicle operation and increases the instability of the train. At the tail, this instability is stronger.

Combining the above two factors, when the train passes the "dead dowty retarder", it is easy to cause the empty car or the caboose at the rear to go off the line. Even if a single slipped vehicle passes the "dead dowty retarder", it will not cause a disconnection accident. Verify the above analysis. Therefore, the "dead dowty retarder" is very harmful to the pulling out of the vehicle or the large group of vehicles rolling out and should be eliminated in time.