摘要
利用大型结构分析系统NASTRAN和微机自动力分析程序PAL2计算了自由-自由中长加框薄完的动力特性，并用DAS数据采集和处理系统对壳体进行了模态试验。结果表明：前30阶的理论计算结果和试验测量结果的一致性是令人满意的。
The vibration mode of a free-free thin-walled cylindrical shell with end ring is reported. The calcalatian was made by MSC/PAL2 and MSC/NASTRAN. The experiments was processed by a Data Auto Sample and Process system named DASP. The calculation resualts are compatible with test data for first 30 medes.
出处
《强度与环境》
1999年第3期26-33,共8页
Structure & Environment Engineering
关键词
圆柱壳体
模态分析
模态振动试验
有限元
火箭
Cylindrical shell, Modal analysis, Modal vibration test, Finite element method
