摘要
研究了万安水利枢纽底孔坝段中隔墙在水流脉动壁压作用下的结构随机振动问题，进行了一种泄流工况下的隔墙结构流激振动响应统计量的理论计算，模拟计算了隔墙－水流－基础耦合系统固有频率对流激振动响应的影响，并对水流脉动壁压随机荷载作用下的结构动力可靠度进行了理论分析。
The struct ure random vibration problem is studied for the dividing-wall in bottom outlets section of the Wan'an project under the action of the flow fluctuation wall-pressure.A calculation ismade for the flow-induced vibration response statistics of the dividing wall under certain dischargingconditions.The influence of natural frequency of the dividing wall-fluid-foundation coupling systemon flow-induced vibration response is studied.The theoretical analysis of the structure dynamic reliability by the action of random loading from flow fluctuation wall-pressure is carried out.
出处
《长江科学院院报》
CSCD
北大核心
1994年第4期30-37,共8页
Journal of Changjiang River Scientific Research Institute
关键词
隔墙
随机振动
脉动压力
振动响应
水流脉动
dividing-wall
random vibration
fluctuation pressure
wall-pressure field
correlation analysis
fluid-structure coupling system
dynamic reliability
