| 基于子结构法的某多管火箭炮频率特性分析 |
| |
| 引用本文： | 李士军,朱孙科,马大为.基于子结构法的某多管火箭炮频率特性分析[J].系统仿真学报,2010,22(3). |
| |
| 作者姓名： | 李士军 朱孙科 马大为 |
| |
| 作者单位： | 南京理工大学机械工程学院,南京,210094 |
| |
| 摘 要： | 根据虚功原理,推导了子结构方法的动力学模型。采用实体单元建立了某多管火箭炮的子结构模型。计算了某多管火箭炮在不同俯仰角和装弹数量情况下的固有振动频率,得到了低阶固有频率与俯仰角的关系及低阶固有频率与火箭弹数量的关系。结果表明采用该方法计算频率,能减小计算模型,缩短计算时间。
|
| 关 键 词： | 有限元 子结构法 多管火箭炮 固有频率 |
Analysis on Natural Frequency Characteristics of Multiple Rocket Launcher Based on Finite Element Substructure Method |
| |
| LI Shi-jun,ZHU Sun-ke,MA Da-wei.Analysis on Natural Frequency Characteristics of Multiple Rocket Launcher Based on Finite Element Substructure Method[J].Journal of System Simulation,2010,22(3). |
| |
| Authors: | LI Shi-jun ZHU Sun-ke MA Da-wei |
| |
| Institution: | LI Shi-jun,ZHU Sun-ke,MA Da-wei (School of Mechanical Engineering,Nanjing University of Science & Technology,Nanjing 210094,China) |
| |
| Abstract: | A dynamic model using substructual method was established based on the theory of virtual work. Substructual model of some multiple rockets was established by use of entity unit. The natural frequency characteristics under different angles and the quantity of rocket projectile were calculated. The relationship among low order natural frequency, elevation angle and the quantity of rocket projectile was got. This method for calculating frequencies can reduce the dimensions of model and calculation time. |
| |
| Keywords: | finite element method substructure method multiple rocket launcher natural frequency |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
