摘要
应用结构与流体有限元的流固耦合方法,对大型水轮机活动导叶在不同水体区域边界条件下的水下模态进行了大量对比分析,得到了活动导叶水下模态振型和水下自振频率,并给出了适合活动导叶水下模态分析的水体区域计算模型,为活动导叶水下模态分析和水轮机的稳定性设计提供了理论依据。
Mode in different water area for the wicket gate of large hydraulic turbine is analyzed and contrasted largely by FEM equation of fluid-solid coupled, and it acquires vibration characteristic of wicket gate in water. Finally, this paper summarizes FEM calculating model in different water area for the wicket gate. The result will afford theory gist for the wicket mode analysis in water and hydraulic turbine stabilization running.
出处
《东方电气评论》
2010年第1期53-56,共4页
Dongfang Electric Review
关键词
水轮机
活动导叶
流固耦合
水下模态
hydraulic turbine
wicket gate
fluid-solid coupling
mode in water
