KMS of Xinjiang Astronomical Observatory, CAS
| 一种热变形大型双反射面天线的副反射面位置补偿方法 | |
| Alternative Title | Compensation method of auxiliary reflective surface position of large-scale thermal deformation double-reflector antenna |
| 王从思; 李辉; 李兆; 刘鑫; 王伟锋; 康明魁; 王伟; 朱敏波; 陈光达; 段宝岩; 黄进; 保宏; 李江江 | |
| 2013-09-02 | |
| Patent Number | ZL 201310393515.8 |
| Copyright Date | 2016-01-06 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 授权 |
| Application Number | CN201310393515.8 |
| Open (Notice) Number | CN103488818A |
| Date Available | 2014 |
| Abstract | 本发明公开了一种热变形大型双反射面天线的副反射面位置补偿方法，主要解决双反射面天线因温度变形引起的电性能下降问题。其方案是：（1）根据天线结构参数，建立天线有限元模型。（2）计算加载温度载荷后变形的节点坐标；（3）根据变形主反射面信息，建立变形主反射面电磁模型；（4）在变形主反射面电磁模型中，以提取的变形副反射面的顶点坐标为基准，建立变形副反射面电磁模型，计算未补偿时电性能；（5）用等效馈源代替实馈源和副反射面；（6）用遗传算法，优化变形参量，由得的等效馈源位置求补偿后副反射面位置，计算进行补偿后电性能；（7）若补偿前后电性能提高量满足要求，则得所求；否，重设优化参数再计算，直至满足要求。 |
| Other Abstract | The invention discloses a compensation method of an auxiliary reflective surface position of a large-scale thermal deformation double-reflector antenna, mainly solving the problem that electrical property is reduced due to temperature deformation of the double-reflector antenna. The technical scheme comprises: (1) according to antenna structural parameters, an antenna finite element model is established; (2) deformed node coordinates are calculated after temperature loads are loaded; (3) according to the deformed main reflective surface information, a deformed main reflective surface electromagnetic model is built; (4) in the deformed main reflective surface electromagnetic model, the extracted peak coordinate of a deformed auxiliary reflective surface is taken as a benchmark, a deformed auxiliary reflective surface electromagnetic model is built, and electrical property is calculated when compensation does not exist; (5) an equivalent feed source is used for replacing a solid feed source and the auxiliary reflective surface; (6) deformation parameters are optimized by a genetic algorithm, the auxiliary reflective surface position after compensation is solved by the obtained position of the equivalent feed source, and electrical property is calculated when compensation exists; (7) if the enhanced amounts of the electrical property before and after compensation meet the requirement, the needed electrical property is obtained; if not, the parameters are redesigned and optimized, and then calculation is carried out till the requirement is met. |
| Classification | G06F17/50 ; H01Q15/16 ; H01Q19/19 |
| 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/45760611-7/1516 |
| 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,李辉,李兆,等. 一种热变形大型双反射面天线的副反射面位置补偿方法. ZL 201310393515.8[P]. 2013-09-02. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2013103935158.pdf（5117KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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