航天器工程2017，Vol.26Issue(3)：43-49,7.DOI:10.3969/j.issn.1673-8748.2017.03.007
航天器平面薄膜结构模态分析和试验
Modal Analysis and Experiment of Spacecraft Flat Membrane Structures
邱慧 1李潇 1樊俊峰 1林秋红 1檀傈锰1
作者信息
- 1. 北京空间飞行器总体设计部,北京100094
- 折叠
摘要
Abstract
In order to analyze dynamic characteristics of flat membrane structures (including membrane and tensioning system),modal analysis for a flat membrane structure with multiple pockets in vacuum and air is carried out by finite element simulation and a modal testing system is built.Flatness of the flat membrane structure is measured by photogrammetric testing technique and the modal is tested by a scanning laser vibrometer.Validity of the modal simulation analysis is demonstrated by experimental results.Based on the verified modeling technique,further research results show that the fundamental frequency of flat membrane structures is approximately proportional to the square root of cable tension force and the fundamental frequency decreases with the in creasing of radius of pocket,but the decrease magnitude is small.Therefore,in order to increase the fundamental frequency of flat membrane structures,increasing cable tension force is much more efficient than decreasing radius of pocket.关键词
航天器/平面薄膜结构/模态分析/空气附加质量Key words
spacecraft/flat membrane structure/modal analysis/air added mass分类
航空航天引用本文复制引用
邱慧,李潇,樊俊峰,林秋红,檀傈锰..航天器平面薄膜结构模态分析和试验[J].航天器工程,2017,26(3):43-49,7.
