空间电子技术2025，Vol.22Issue(z1)：156-162,7.DOI:10.3969/j.issn.1674-7135.2025.S1.014
大型紧缩场反射器型面精度分析与试验
Analysis and testing of the surface accuracy of a large compact range reflector
摘要
Abstract
Large compact antenna test ranges are important experimental facilities for realizing the test of satellite payloads,and the precision of its reflector surface is a key indicator for measuring and evaluating the performance of the compact range.Gravity deformation is one of the main factors affecting the precision of a reflector.The reflector of a large compact range is usually block designed.In this paper,the reflector is divided into four equal parts horizontally,which results in the bottom reflector bearing the self-weight of the upper reflectors.In actual production,it is necessary to complete a gravity loading test on the bottom reflector before manufacturing the other three upper reflectors.In order to resolve the issue of accurately performing the loading test on the bottom reflector without the other three upper segments,this paper proposes a method of designing an equivalent loading test for the bottom reflector through simulation and has completed the equivalent loading test.The test results show that the strain error between the test and simulation is within 20%,and the surface precision error is 10%.The effectiveness of the simulation analysis method is verified by the comparison of simulation analysis and loading test.关键词
大型紧缩场/反射面/重力变形/力学仿真/等效试验Key words
large compact antenna test range/reflector surface/gravity deformation/mechanical simulation/equivalent test引用本文复制引用
姚薇薇,冯凯,冀有志,雷艳妮,张安安,李建斌..大型紧缩场反射器型面精度分析与试验[J].空间电子技术,2025,22(z1):156-162,7.基金项目
国家自然科学基金(编号:51205322) （编号:51205322）
