封闭前后航天发射塔回转平台结构动特性分析  

Dynamic Characteristics Analysis of the Rotating Platforms of Launching Tower Before and After Closing

作　　者：贾立德[1] 涂国勇[1] 郑永煌[1] 吴非[1] 李婷[1] 

机构地区：[1]中国酒泉卫星发射中心试验技术部,兰州732750

出　　处：《载人航天》2013年第4期58-62,96,共6页Manned Spaceflight

摘　　要：建立了封闭前后航天发射塔回转平台的结构有限元模型,分析求解了其固有频率和振型。通过对比分析,明确了封闭对回转平台结构动特性和可靠性安全性的影响规律。上述分析计算结果对实际工程使用具有一定的参考价值。Structural finite element model of the rotating platforms of the launching tower was built,and the natural frequencies and normal modes were calculated before and after closing.With the comparing analysis,the effecting rule of closing on the dynamic characteristics and the reliability and safety of the rotating platforms was put forward.The results provide an important reference for the practical operation in task.

关 键 词：航天发射塔 回转平台 动特性 有限元 

分 类 号：V553.1[航空宇航科学与技术—人机与环境工程]