摘要
本文针对某自行式火箭炮零部件多,连接关系复杂的特点,将其简化成有限元模型,计算了固有频率和振型。将连续发射的冲击载荷加入,进行了响应历程模拟。调整结构各部分参数,分析了参数改变对响应的影响,与弹的散布相联系,得到一些有价值的结论。
Considering the large quantities of the components and their complex relationships, the finite element method model and calcalation of the natural frequency and mode of the rocket launcher are discussed in this paper. By means of loading the continual fire impacts to the model for simulating the response history and analyzing the structure parameters effects on the response and the distribution of projectiles, significant results have obtained.
关键词
火箭炮
有限元法
射击精度
计算机
multibarel rocket guns
finite element methods
dynamic properties
fire accuracy
computerized simulation.
