Analysis of Sliding Wedge Breech Mechanism and Response of 100mm Gun upon Firing
Keywords:
sliding wedge breech block, 100mm cannon, simulation, finite element method, LS-DynaAbstract
The paper deals with numerical and analytical analysis of sliding wedge breech mechanism response during one shot fired from 100mm cannon. The model of the breech together with gun tube was modelled in LS-Dyna environment using available commands for mesh generation and for handling boundary conditions including contact surfaces. Only the components that significantly affect the force redistribution are modelled for the analysis. The explicit finite element method was used to retrieve stresses and deformations of the breech. The emphasis was put on the breech block which was the critical phenomenon. The numerical results were compared to analytic solution which is commonly used in the process of designing sliding wedge breech blocks. The response of the gun as a whole was also analysed.
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