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| An active control method for profile accuracy of membrane reflector antenna |
| GU Yongzhen1, DUAN Baoyan2, ZHANG Shunji2, ZHONG Wang2, ZHANG Qinggang1 |
1. Department of Mechanical Engineering and Automation, Qingdao University of Science and Technology, Qingdao 266061, China;
2. MOE Key Lab of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China |
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Abstract Aiming at the problem of how to effectively control the shape accuracy of the membrane reflector antenna, a bidirectional control method combining with electrostatic forces and boundary cable forces is proposed. Firstly, the electrostatic forces calculation formulas are derived when the distance between the membrane reflector surface and the membrane control surface changes, and the electrostatic forces update process is given. Then, with the electrode voltages and boundary cable forces as the design variables, and the membrane reflector surface accuracy as the optimization objective, an active control model for the membrane reflector antenna surface accuracy is established. Finally, the effectiveness of the control method is verified by two simulation examples of active control of membrane reflector antenna shape accuracy under two forms of temperature load.
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Received: 07 September 2022
Published: 15 July 2023
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