大长细比模拟弹模态分析与计算  

Great Slenderness Ratio Imitative Projectile Mode Analysis and Theories Calculation

作　　者：臧涛成[1] 

机构地区：[1]苏州科技学院应用物理系,江苏苏州215009

出　　处：《弹箭与制导学报》2003年第2期40-42,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：对三种长细比模拟穿甲弹弹体,进行了模态分析试验,并与理论计算结果进行了分析比较。结果表明:在研究大长细比弹体固有振动频率及振形时,可以用里兹(Ritz)法进行近似计算,且模态阶数越低,长细比越大,符合得越好;长细比越大,断弹危险截面的范围也越大。It has been done for mode experiment of three kinds of slender imitative projectile, the results are compared with theories calculation 0 The result expresses; the proper vibration frequency and vibration shape of great slenderness ratio projectile can be certained approximately by calculatation with Ritz method , and the rank number of mode is more low, slenderness ratio is more great, and the result match more good; slenderness ratio of projectile is more great, its danger cut' scope too more big, and etc.

关 键 词：长细比 模拟穿甲弹 模态分析 振动频率 振形 里兹法 

分 类 号：TJ413.2[兵器科学与技术—火炮、自动武器与弹药工程]