Abstract
Tub-type car is a kind of truck which increases the usage of the rolling stock clearance. Its special tub-shaped structure provides more space for cargo that increases the load utilization factor. The analysis of the structural strain strength proves that the design and material of the tub-type car body fit the actual demand according to the rules of the <AAR Specification>. The stress of every point everywhere on the structure of the car body is below the yield stress which ensures the safety of the car body during the operation. The simulation results reflect the stress distribution of the whole car body which provides the reference for design and test.
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