大射电望远镜舱索系统的控制与实验  

Control and Experiment for Large Radio Telescope

作　　者：保宏[1] 段宝岩[1] 陈光达[1] 米建伟[1] 

机构地区：[1]西安电子科技大学电子装备结构教育部重点实验室,西安710071

出　　处：《中国机械工程》2007年第14期1643-1647,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(10433020;50685167);全国优秀博士论文专项基金资助项目(200535)

摘　　要：大射电望远镜(LT)馈源舱的大范围空间扫描运动是通过6根大跨度的绳索收放来完成的。针对系统中的索结构之间强耦合以及模型变结构的特点,推导了输入索和输出索之间的关系矩阵的递推公式,并证明了递推公式的稳定性和收敛性,在此基础上提出了一种具有神经网络非参数模型自适应控制的方法,最后通过LT50m室外模型实验证明了该算法的有效性。In large radio telescope （LT） project, six large span cables were employed to tune the cable--cabin--supporting system to implement the cabin＇s trajectory tracking. Considering the special characteristics of the strong coupling among cables, a recursively formula between input length a/ld out length of cables was deduced based on none parameter adaptive theory. The stability and convergence of the formula were established respectively. Then an adaptive control algorithm with neural network was presented. Practical LT50m model experimental results were executed to demonstrate the method validity.

关 键 词：大射电望远镜 大跨度绳索 自适应控制 模型实验 

分 类 号：TH751[机械工程—仪器科学与技术] TP273[机械工程—精密仪器及机械]