火炮动力学模型降阶的一种方法  

A METHOD APPLIED TO REDUCTION OF ARTILLERY DYNAMIC MODELS

作　　者：杨国来[1] 陈运生[1] 

机构地区：[1]南京理工大学机械学院,南京210094

出　　处：《弹道学报》1999年第2期62-66,共5页Journal of Ballistics

摘　　要：基于惯性完备性准则提出了一种火炮动力学模型降阶的方法．建立了某火炮后坐部分的有限元模型，计算了该构件的固有振动特性，利用惯性完备性准则对模态进行了合理的缩减，有效地缩小了火炮动力学求解规模，具有较强的实用价值．This paper presents a method of reduced grade for artillery dynamic models based on the criterion of inertia completeness, which is kept on calculation accuracy and is increased for computing speed. The natural vibration characteristics are estimated according to the finite elements model of gun parts. The exercise examples are shown the better effects are taken by means of the reduced models.

关 键 词：火炮 有限元 动力学 模态缩减 惯性完备性准则 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]