自动炮支架作用原理分析
|
摘要
针对在小口径自动炮上使用的支架 ,将火炮身管和支架简化为空间多段有限元弹性梁单元 ,引入形函数矩阵描述梁单元的挠度 ,采用拉格朗日方程建立了考虑支架与身管耦合的有限元动力学模型。在有限元模型的基础上建立了数值计算程序并利用该模型分析和讨论了支架的作用原理 ,分析结果表明采用设计合适的支架将有助于提高小口径自动炮的射击精度
An analysis on the principle of bracket used on small caliber automatic gun is presented in this paper. A FEM dynamical model is established to simulate the coupled movment of gun barrel and bracket. In the model, gun barrel and bracket are described as some elastic beam elements, shape function is used to describe the disturbing of these elements, and lagrangian equation is used to educe the dynamical equations. A numerical simulation of the dynamical model is presented, and the analysis and discussing based on the numerical results indicate that a properly designed bracket will be helpful to firing precision of small caliber automatic gun.
An analysis on the principle of bracket used on small caliber automatic gun is presented in this paper. A FEM dynamical model is established to simulate the coupled movment of gun barrel and bracket. In the model, gun barrel and bracket are described as some elastic beam elements, shape function is used to describe the disturbing of these elements, and lagrangian equation is used to educe the dynamical equations. A numerical simulation of the dynamical model is presented, and the analysis and discussing based on the numerical results indicate that a properly designed bracket will be helpful to firing precision of small caliber automatic gun.
引文
[1] Meirovitch L.Element of Vibration Analysis[M].New York:Mc Graw- Hill Book Co,1975 .
[2 ] 陆佑方 .柔性多体系统动力学 [M].北京 :高等教育出版社 ,1996 .
[3] 何 永 .火炮总体设计研究 [D].南京 :南京理工大学 ,1995 .
[4] 户川隼人 .振动分析的有限元法 [M].北京 :地震出版社 ,1985 .
[5 ] 林砺忠 .高炮振动分析 [D].南京 :南京理工大学 ,1992
[2 ] 陆佑方 .柔性多体系统动力学 [M].北京 :高等教育出版社 ,1996 .
[3] 何 永 .火炮总体设计研究 [D].南京 :南京理工大学 ,1995 .
[4] 户川隼人 .振动分析的有限元法 [M].北京 :地震出版社 ,1985 .
[5 ] 林砺忠 .高炮振动分析 [D].南京 :南京理工大学 ,1992
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心