The loading system of an automatic gun comprises those devices whose function is to load the round in barrel for firing. The loading system furthermore receives the empty case extracted from gun barrel after firing and transfers it to the case ejection system. The loading system mainly consists of a loading tray which can assume two positions as follows:
The loading tray is automatically moved in its up position by the recoiling mass during its recoil stroke through a recocking transmission and in its down position by a hydropneumatic recuperator. We have developed a FEM model for the new loading tray with the aim to optimize its structural response to project loads.
The model reproduce with two different simulations the down movement when it ram the round into the barrel and the up movement during gun recoil.