| 金属网反射器索网预应力对模态的影响 |
| |
| 作者姓名： | 侯管仲 肖勇 |
| |
| 作者单位： | 中国空间技术研究院西安分院,西安710000 |
| |
| 摘 要： | 卫星姿态和轨道调整时,金属网反射器索网结构的基频过低会使反射器产生振颤。文章通过金属网反射器索网结构的模态方程,利用有限元法来分析预张力的值与模态之间的关系,得到了预张力的大小对索网模态的影响规律,索网的基频会随着预张力的减小而下降,并用算例验证了这种方法的正确性。
|
| 关 键 词： | 金属网反射器 预应力 模态 基频 有限元法 |
The Influence of Cable Net Pre-tension to Mode of Metal Mesh Reflector |
| |
| Authors: | Hou Guanzhong Xiao Yong |
| |
| Institution: | Hou Guanzhong Xiao Yong (China Academy of Space Technology(Xi′an),Xi′an 710000,China) |
| |
| Abstract: | Based on the mode equation of cable net structure,the relation ships between the value of pre-tension and the mode by use of FEM and the influence formulae of pre-tension to mode are obtained,as well as the varying rule of the fundamental frequency with the average value of cable net pre-tension.The proposed approach is proved to be feasible through an example. |
| |
| Keywords: | Mesh antenna Pre-tension Mode Fundamental frequency FEM |
| 本文献已被 维普 等数据库收录！ |
|
