Abstract
The article presents the results of determining the dynamic load of the improved cover of an open wagon under operational conditions. The peculiarity of the manhole cover is that the canvas is formed by the upper and lower sheets, between which, there is an energy-absorbing material with viscous properties. The dynamic load of the cover when a load of 150 kg falls on it was studied. It was determined, that the use of energy-absorbing material contributes to the reduction of the cover load by 21 % compared to a typical original design. The main indicators of the dynamics of an open wagon equipped with improved manhole covers are calculated. The results of the calculations showed that the studied dynamic indicators are within the permissible limits. The conducted studies will contribute to the reduction of damage to manhole covers during operation and the cost of maintaining one wagons.
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