500m口径天文望远镜索网连接节点的设计及试验  

Design and Test of Cable-net Node Connection of 500m Aperture Spherical Radio Telescope

作　　者：黄颖 雷欢 朱万旭[1,2] 姜鹏[3] 张琳[4] 

机构地区：[1]柳州欧维姆机械股份有限公司,545006 [2]桂林理工大学,541004 [3]中国科学院国家天文台,北京100012 [4]北京市建筑设计研究院有限公司,100045

出　　处：《特种结构》2017年第1期59-63,67,共6页Special Structures

基　　金：广西"新世纪十百千人才工程"专项资金;桂林理工大学博士启动基金资助(002401003499);广西科技计划科技基地和人才专项项目(2016AD05036)

摘　　要：500m口径天文望远镜(FAST)工程采用网格划分方式编织主索网,索与索之间采用节点连接。文中通过方案对比分析,采用节点盘与向心关节轴承的组合方式方案。经有限元模拟和试验,针对不同连接索规格,优化了节点盘相应部位的厚度等系部结构参数,并选择综合性能优异的42CrMo材料制造。该型式节点在FAST工程得到了成功应用。The 500 m aperture astronomical telescope（FAST） was supported by a mesh of main steel cables which were connected through disk nodes.In this paper,the combination of node disks and spherical plain bearings were analyzed and compared with other solutions.Structural parameters,such as the thickness of the node disc,were optimized using finite element simulation and test according to different cable connection specifications.The main cable node disk is made of 42 CrMo which has excellent comprehensive properties.The application of this node connection in the FAST project was proved to be very successful.

关 键 词：FAST工程 索网 节点盘 关节轴承 

分 类 号：TU399[建筑科学—结构工程] P111.44[天文地球—天文学]