I am looking for help how to calculate the roller with the chain rolling down the steep approx. 3 degrees.
In the end of the chain is the load - max. 2 tonnes.
The roller is stopped by the stopper. It is producing a swing of the load where the roller go backwards slightly where the load overtake the roller position and when the load is swinging back the top roller hits the stopper again.
Please see attached sketch:


How to calculate a impact force the roller generates when the load is swinging and creating extra force?
Thank you for any suggestions.