迫击炮座钣动态特性分析

该文主要论述迫击炮座钣三维空间板壳结构的动态特性问题。文中重点阐述了运用弹性力学有限元法对座钣建立的力学模型,模型的离散化处理,以及应用线性结构分析和图像处理软件,在微机系统上取得的结构动态特性的数字与图像信息。最后,给出了典型座钣关键部位的动应力变化历程,以及工程设计者所关心的动荷系数。

Analysis, of Dynamic Characteristic of Mortar's Base Plate

In this paper, problems about dynamic characteristic ofthree-dimensional base plate of mortar are discussed. The emphasis isput on applying the finite element method to setting up dynamic mod-el of base plate, technique in discrete processing and using linearstructure analysis and picture processing software to get data and pic-ture of structure's dynamic characteristic. The paper also gives chang-ing process of dynamic load coefficient, over which engineering de-signers are concerned.