【摘要】 潜射导弹在出筒及出水过程中 ,由于水动力及重力的影响 ,将受到较大的轴向载荷作用。轴向载荷将影响结构几何刚度 ,从而影响结构的横向振动频率。本文研究了轴载对导弹梁模型横向振动频率的影响 ,并以某型号潜地导弹发射过程中某时刻为例 ,用大型有限元软件 ANSYS对这种影响作了计算 ,得到了有关结论更多还原

【Abstract】 There is a strong axial load action on underwater to surface missile when it departs from launch tube or water because of water dynamic action and gravity. The axial load may affect structural geometry rigidity and therefore, lateral vibration frenquency. The effect of axial load on lateral vibration frequency of missile beam mode is discussed in this paper, taking some moment in launch procedure of some underwater to surface missile as an example, the effect is computed with ANSYS, and a related conclusion is drawn.更多还原