| 某精密三轴转台O型框架的一种改进设计 |
| |
| 引用本文： | 牟东慧,曹雪立,郑权.某精密三轴转台O型框架的一种改进设计[J].导航与控制,2009(3):53-57. |
| |
| 作者姓名： | 牟东慧 曹雪立 郑权 |
| |
| 作者单位： | 北京航天控制仪器研究所;北京航天控制仪器研究所;北京航天控制仪器研究所 |
| |
| 摘 要： | 该文利用有限元原理建立了精密三轴转台O型框架有限元模型。通过对转台静态和动态载荷的分析，得出了三轴转台O型框架的有限元模型的边界条件，对转台O形框架的不同长宽比的情况下作出分析比较，在此基础上提出了一种新形式的变截面O型框架结构，这种结构的质量减轻，转动惯量减小，通过对其刚度及应力可靠性评估，证明这种新结构形式的框架也是可靠的。
|
| 关 键 词： | 三轴转台 有限元法 框架性能 可靠性评估 |
Improvement Design of a Three-axis Turntable's O-type Framed Structure |
| |
| MU Dong-hui,CAO Xue-li and ZHENG Quan.Improvement Design of a Three-axis Turntable's O-type Framed Structure[J].Navigation and Control,2009(3):53-57. |
| |
| Authors: | MU Dong-hui CAO Xue-li and ZHENG Quan |
| |
| Institution: | Beijing Institute of Aerospace Control Device;Beijing Institute of Aerospace Control Device;Beijing Institute of Aerospace Control Device |
| |
| Abstract: | In this dissertation ,the finite element model of the three-axis turntable's O-type structure is established based on the modern mechanism and finite element method. through the static and dynamic load analysis ,this essay gain the boundary condition of the O-type framed structure's finite element model ,then ,compare the result of the analysis of O-type framed structure in the condition of different ratio of length and width .Based on the comparison ,this essay puts forward a new type framed structure with less mass and turn inertia .The reliability estimation of the new O-type frame's rigidity and stress prove that the new one is reliable. |
| |
| Keywords: | three-axis turntable finite element method framed structure performance reliability estimation |
|
| 点击此处可从《导航与控制》浏览原始摘要信息 |
| 点击此处可从《导航与控制》下载免费的PDF全文 |
