首页|Effect of notch geometry change on draw rod durability
Effect of notch geometry change on draw rod durability
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NSTL
Elsevier
This article is focused on influence of notches on durability of a machine part in the case of cycling loading. There is analysed a draw rod installed in the pin coupler applied in the towing system of railway waggons used for transport of slabs. These waggons are grouped into a train set without own brakes. Therefore, the draw rod is cyclically loaded due to repeated run up and braking by the locomotive. The calculations confirm that the notches on the draw rod are improperly designed and they are causing a fatigue damage. There are proposed design modifi-cations of the draw rod in order to increase its durability. The performed calculations are sup-plemented by verifying simulations using the Finite Element Method. The calculations and simulations correlate well each other and confirm their correctness. Durability of the draw rod was significantly increased thanks to the proposed modifications.
NSTL
Elsevier
