By equivalizing and simplifying the turret azimuth shafting in a system,the inherent torsion frequency of turret azimuth shafting is calculated and analyzed by using finite element model.

• 通过对某系统炮塔方位轴系的等效与简化,利用有限元模型分析并计算出了炮塔方位轴系的固有扭振频率。