Active Pointing Compensation of a HTS Multibeam Antenna

IF 1.1 4区工程技术 Q3 ENGINEERING, AEROSPACE International Journal of Aerospace Engineering Pub Date : 2024-02-29 DOI:10.1155/2024/8824810

Xudong Wang, Pengpeng Wang

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Abstract

Active pointing compensation of a High Throughput Satellite (HTS) multibeam antenna via microfiber composites (MFCs) is studied in this paper. Electrical-mechanical coupling analysis of MFCs is conducted to quantitatively determine driving forces and moments of MFCs attached on a carbon fiber reinforced composite (CFRP) laminate, and a positive correlation relationship is observed for driving ability versus thickness of the laminate. By different driving strategies, MFCs could act in bending mode and torsioning mode for structural deformation control, and driving efficiency of the MFCs on a multibeam antenna is studied. Thermal distortion of the antenna under a typical in orbit thermal distribution causes the reflector to rotate about axis with an pointing error of 0.005°, active compensation is conducted, and the final compensation results show that with an optimal voltage of 432 V, pointing error of the antenna is greatly compensated, and the depointing angle is corrected to be 0.00004°.

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HTS 多波束天线的有源指向补偿

本文研究了通过微纤维复合材料（MFC）对高通量卫星（HTS）多波束天线进行主动指向补偿的问题。通过对 MFC 进行电-机耦合分析，定量确定了附着在碳纤维增强复合材料（CFRP）层压板上的 MFC 的驱动力和力矩，并观察到驱动能力与层压板厚度之间存在正相关关系。通过不同的驱动策略，MFC 可在弯曲模式和扭转模式下控制结构变形，并研究了多波束天线上 MFC 的驱动效率。在典型的在轨热分布条件下，天线的热变形导致反射器绕轴旋转，指向误差为 0.005°，对此进行了主动补偿，最终的补偿结果表明，在 432 V 的最佳电压下，天线的指向误差得到了极大的补偿，去尖角修正为 0.00004°。

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来源期刊

International Journal of Aerospace Engineering ENGINEERING, AEROSPACE-

CiteScore

2.70

自引率

7.10%

发文量

195

审稿时长

22 weeks

期刊介绍： International Journal of Aerospace Engineering aims to serve the international aerospace engineering community through dissemination of scientific knowledge on practical engineering and design methodologies pertaining to aircraft and space vehicles. Original unpublished manuscripts are solicited on all areas of aerospace engineering including but not limited to: -Mechanics of materials and structures- Aerodynamics and fluid mechanics- Dynamics and control- Aeroacoustics- Aeroelasticity- Propulsion and combustion- Avionics and systems- Flight simulation and mechanics- Unmanned air vehicles (UAVs). Review articles on any of the above topics are also welcome.