The Anti-Fatigue Design of 80 t Depressed-Center Gondola Car Body

In view of the problem that special gondola cars are generally insufficient for actual transportation coke, and in order to improve efficiency reduce cost, 80 t depressed-center car coke is designed by anti-fatigue design method this paper. The body with a supporting bar without simulated analyzed finite element method; results show there stress mutations at transition area two key welds, especially 110 mm weld 1. fatigue lives schemes evaluated Miner linear cumulative damage theory, spectrum S-N curve AAR standard, load Daqin line BSI standard. best scheme. addition, vertical worse than line, longitudinal AAR. This conclusion will provide basis an heavy haul wagon bodies or bogies.