一种索网结构模态预测的方法  

A method for modal prediction of cable net structures

作　　者：李欢笑 范叶森[1] 马小飞[1] LI Huan-xiao;FAN Ye-sen;MA Xiao-fei(China Academy of Space Technology （Xi＇an）, Xi＇ an 710100, China)

机构地区：[1]中国空间技术研究院西安分院,陕西西安710100

出　　处：《空间结构》2017年第4期61-64,共4页Spatial Structures

基　　金：国家自然科学基金项目(U1537213)

摘　　要：为了研究不同因素对天线模态的影响,基于均匀试验设计理论,提出了一种索网结构模态预测的方法.该方法同时考虑多个因素对天线基频的影响,根据均匀设计表,利用回归分析法编程进行数据分析,得出各因素与基频之间的回归函数模型.利用该模型进行基频计算,所得结果与有限元软件仿真结果进行对比,结果误差不超过2%,证明该方法正确、可行.In order to check effects of different factors on antenna modal,this paper presents a cable net modal prediction method based on the uniform design experimental method.This strategy simultaneously considers the influence of several factors on the fundamental mode of the antenna.According to the uniform design table and regressive analysis program for data analysis,a regressive function model between each factors and the fundamental frequency is obtained.This regressive model is applied to the calculation of fundamental frequency.A comparison with the simulation results by using finite element software shows that the error of results does not exceed 2%,indicating that the method is correct and feasible.

关 键 词：索网结构 模态 均匀试验设计 回归分析 

分 类 号：TN828.5[电子电信—信息与通信工程] TU351[建筑科学—结构工程]