摘要
就在建的某大型水电站地下厂房结构 ,分析计算了 18种振源的频率 ,全部采用三维实体单元对其进行模拟 ,建立了多个三维有限元模型并进行了计算分析和共振校核 ,研究了机组支撑结构不同的结构布置形式 ,不同的边界条件和不同的材料对其动力特性的影响 ,得出了一些结论 ,为有效优化地下厂房结构的整体动力特性 。
Frequencies of 18 kinds of vibration\|sources are computed for an underground power house of a large building hydropower station. Many models of 3\|D FEM are constructed by simulating them with 3\|D elements.The dynamic characteristics is analyzed and the structure resonance vibration is checked. The influence of different arrangement, different boundary conditions and different materials on dynamic characteristics of structure is studied, some conclusions are obtained.These conclusions are used to optimize the unitary dynamic characteristics of underground power house and improve the methods of the vibration resistance design.
出处
《水力发电学报》
EI
CSCD
北大核心
2004年第2期49-54,共6页
Journal of Hydroelectric Engineering
基金
高等学校博士学科点专项科研基金资助项目 (编号 :2 0 0 2 0 0 560 32 )
关键词
地下厂房
动力特性
三维有限元法
影响因素
振源
underground power house
dynamic characteristics
3 D FEM
influential factor
vibration source
