摘要
运用通用有限元程序ANSYS对某天气雷达站塔楼结构进行了自振特性分析及振型分解反应谱分析,通过计算得出了雷达站塔楼的前20阶频率、振型,并计算了地震反应谱作用下位移及内力,为结构设计提供了可靠的参考数据。
Using the finite element program ANSYS the dynamic property of a weather radar tower is analysed. A modal analysis of the tower was conducted, the first 20 frequencies and modal shapes are obtained. At the same time, the displacements and internal force under the response spectrum were calculated. These results can offer reliable basis for structural design.
出处
《科学技术与工程》
2004年第7期526-528,共3页
Science Technology and Engineering
基金
国家自然科学基金(40172101)
关键词
雷达站塔楼
自振频率
振型
反应谱
radar tower
natural frequency
modal shape
response spectrum
