A Study on the Characteristics of Bogie Frame Materials

초록

A bogie, which is the driving device for railway vehicles, is the key structural component that supports the load of the rail body. It has a very profound impact on passenger and vehicle safety, driving performance, and ride comfort. The driving device is largely composed of the bogie frame, wheel and axle, 1st and 2nd suspension, brakes, motors, and power transmission devices. The bogie frame, a structure of the bogie, is complex in shape and directly supports loads. In addition, since load conditions are applied in combination with static and dynamic loads, the bogie is under static load due to the weight of the body and passenger loads, quasi-static load that occurs in the case of curve driving and braking, and dynamic load caused by irregular track and body, driving device and movement mode of wheel-sets. A structural analysis was conducted with the bogie frame, the main component of the driving device as the primary target. Based on the results, the characteristics of the bogie were analyzed by evaluating the structural stability of the bogie after identifying its strength through the test.