火箭弹强度设计及动态特性分析的有限元法

The Dynamic Characteristics Analysis of High Speed Slender Rocket

目的: 分析某火箭弹的强度和动态特性。方法: 建立有限元模型,利用ANSYS软件对火箭弹进行强度和动态特性分析。结果: 得到了火箭弹主要零部件的应力分布和全弹前三阶模态。结论: 通过与实验的对比,验证了模型的合理性及计算的精确性,为火箭弹的强度和动态特性设计提供了一种有效的方法。

Aim: To analyze the dynamic characteristics of high speed slender rocket. Methods: Build finite-element model,and use ANSYS software to analyze vibrating modes of rocket. Results: On the basis of the finite element method every mode of rocket can be calculated. Conclusion: Compared with the natural frequencies in experiment,it has been proved that the model is reasonable and the calculation result is accurate. It provides a valid design method on dynamic characteristics of rocket.