The restriction modal analysis of infantry combat vehicle auto-gun

The restriction modal of infantry combat vehicle auto-gun is analyzed applying the finite element analysis software ANSYS aiming at the modal analysis of a certain infantry combat vehicle auto-gun under the situation of complicated restriction. According to the structure specialty of infantry combat vehicle auto-gun, the tube of the three-dimensional model is set up by Pro/E software, the auto-gun is mesh generated by ANSYS/Workbench alone and the freedom modal is analyzed and then the restrictions are added and the restriction modal is analyzed. The complexity of the first mode and the MAC of the first six modes are done for the restriction modal of infantry combat vehicle auto-gun, according to the analysis results, we can find out that the restriction modal is correct for infantry combat vehicle auto-gun, wich has shown the importance of the complicated restriction for modal analysis.