一种新型有源相控阵天线结构方案
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摘要
为满足高性能有源相控阵天线的新要求,文中提出了一种具有索桁组合背架与并联驱动装置的创新结构设计方案。建立了该结构方案的有限元模型,通过施加自重、温度、风等外载荷,对天线结构进行了静力学分析。以阵面自重最优为目标,应用序列线性规划法,通过优化索、杆截面尺寸,得到了一组结构方案。与传统方案相比,新方案在保证阵面精度的前提下,型面变形得到了改善,背架总重减少约40%。
In order to meet the new requirements of high-performance active phased array antenna, an innovative structure design scheme is proposed, which is composed of a cable-truss combination frame and a parallel drive device. First, the finite element model of this structure scheme is established. The static structure of the antenna is analyzed by applying external loads such as deadweight, temperature and wind. With the objective of optimal deadweight, a set of structure solutions is obtained by sequential linear programming method and optimizing the cable and rod section dimensions. Compared with the traditional scheme, under the premise of ensuring the front surface accuracy, the profile deformation is improved and the total weight of the back frame is reduced by about 40%.
In order to meet the new requirements of high-performance active phased array antenna, an innovative structure design scheme is proposed, which is composed of a cable-truss combination frame and a parallel drive device. First, the finite element model of this structure scheme is established. The static structure of the antenna is analyzed by applying external loads such as deadweight, temperature and wind. With the objective of optimal deadweight, a set of structure solutions is obtained by sequential linear programming method and optimizing the cable and rod section dimensions. Compared with the traditional scheme, under the premise of ensuring the front surface accuracy, the profile deformation is improved and the total weight of the back frame is reduced by about 40%.
引文
[1] 周泓, 庄文许, 宋骏琛. 雷达天线抗冲击仿真分析与轻量化设计[J]. 雷达与对抗, 2016(2): 53-60.
[2] 周长仁, 杨永华, 肖德正. 相控阵雷达技术原理与发展趋势[J]. 理论与技术, 2012(3): 17-21.
[3] 张金平, 李建新. 星载雷达有源相控阵天线轻量化技术[C]// 成都: 全国天线年会, 2009: 709-712.
[4] FINOTTO V C, Da SILVA W R L. Hybrid fuzzy-genetic system for optimizing cabled-truss structures[J]. Advances in Engineering Software, 2013, 62-63(13): 85-96.
[5] 冯树飞, 段学超, 段宝岩. 一种大型全可动反射面天线的轻量化创新设计方案[J]. 中国科学: 物理学力学天文学, 2017(5): 84-96.
[6] 高峰, 戴建生. 现代机构学理论与应用研究进展[M]. 北京: 高等教育出版社, 2014.
[7] 叶尚辉, 李在贵. 天线结构设计[M]. 西安: 西北电讯工程学院出版社,1986.
[2] 周长仁, 杨永华, 肖德正. 相控阵雷达技术原理与发展趋势[J]. 理论与技术, 2012(3): 17-21.
[3] 张金平, 李建新. 星载雷达有源相控阵天线轻量化技术[C]// 成都: 全国天线年会, 2009: 709-712.
[4] FINOTTO V C, Da SILVA W R L. Hybrid fuzzy-genetic system for optimizing cabled-truss structures[J]. Advances in Engineering Software, 2013, 62-63(13): 85-96.
[5] 冯树飞, 段学超, 段宝岩. 一种大型全可动反射面天线的轻量化创新设计方案[J]. 中国科学: 物理学力学天文学, 2017(5): 84-96.
[6] 高峰, 戴建生. 现代机构学理论与应用研究进展[M]. 北京: 高等教育出版社, 2014.
[7] 叶尚辉, 李在贵. 天线结构设计[M]. 西安: 西北电讯工程学院出版社,1986.