KMS of Xinjiang Astronomical Observatory, CAS
| 基于机电耦合模型的偏置反射面天线电性能预测方法 | |
| Alternative Title | Electrical property prediction method of offset reflector antenna based on electromechanical coupling model |
| 王从思; 徐慧娟; 李兆; 段宝岩; 康明魁; 王伟; 黄进; 保宏 | |
| 2012-07-30 | |
| Patent Number | ZL 201210266151.2 |
| Copyright Date | 2015-05-20 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 授权 |
| Application Number | CN201210266151.2 |
| Open (Notice) Number | CN102788920A |
| Date Available | 2012-11-21 |
| Abstract | 本发明公开了基于机电耦合模型的偏置反射面天线电性能预测方法，该方法包括：1）在I-DEAS中建立天线有限元模型；2）在I-DEAS中分析得到偏置反射面天线的有限元模型各节点的温度分布；3）将有限元模型文件读入Ansys文件中，计算温度引起的结构变形；4）计算偏置反射面天线的反射面误差和馈源误差对天线口径场幅度相位的影响项；5）计算偏置反射面天线的电性能；6）判断是否满足设计要求。该方法可以准确分析温度对偏置反射面天线结构的影响，实现偏置反射面天线的结构和电磁两场耦合分析；分析各种结构误差对天线工作性能的影响，可以找出其中主要结构因素，根据实际需要给出合理的结构精度要求，缩短研制周期，降低研制成本。 |
| Other Abstract | The invention discloses an electrical property prediction method of an offset reflector antenna based on an electromechanical coupling model. The electrical property prediction method comprises the steps of: 1) establishing an antenna finite element model in I-DEAS; 2) analyzing in the I-DEAS to obtain the temperature distribution of each node of the finite element model of the offset reflector antenna; 3) reading a finite element model file in an Ansys file and computing structural deformation caused by temperature; 4) computing items of influence caused by reflector errors and feed source errors of the offset reflector antenna to aperture field amplitude-phase of the antenna; 5) computing the electrical property of the offset reflector antenna; and 6) judging whether design requirements are satisfied. The electrical property prediction method of the offset reflector antenna based on the electromechanical coupling model has the advantages that the influence of temperature on the structure of the offset reflector antenna can be accurately analyzed and the structural field and electromagnetic field coupling analysis of the offset reflector antenna is realized; and the influence of various structural errors to the working performance of the antenna is analyzed, the major structural factors can be found out, the reasonable requirement on structural precision can be given out according to actual demands, the development cycle is shortened and the development cost is reduced. |
| Classification | G01R31/00 |
| Language | 中文 |
| Patent Agent | 西安通大专利代理有限责任公司 61200 |
| Document Type | 专利 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1517 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 |
| Affiliation | 西安电子科技大学 |
| Recommended Citation GB/T 7714 | 王从思,徐慧娟,李兆,等. 基于机电耦合模型的偏置反射面天线电性能预测方法. ZL 201210266151.2[P]. 2012-07-30. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2012102661512.pdf（8620KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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