某水电站内源振动引起厂房结构振动反应分析
发布时间:2018-08-22 12:20
【摘要】:水电站机组运行时产生的各种激振力诱发的振动能量很大,将会直接影响作为机组支撑体系的厂房结构,严重时会直接威胁到厂房结构安全。为此,基于线弹性动力有限元计算理论,利用有限元计算软件ANSYS建立某水电站地下厂房三维有限元模型,对其进行了动力计算,主要研究了内源振动对厂房结构的影响。研究结果表明,机组振动荷载对楼板、风罩机墩等部位作用较明显,该厂房整体结构能够满足水电站安全运行的要求。
[Abstract]:The vibration energy induced by all kinds of exciting forces in the operation of hydropower units is very large, which will directly affect the powerhouse structure as the support system of the unit, and threaten the safety of the powerhouse structure directly when it is serious. Therefore, based on the theory of linear elastic dynamic finite element calculation, a three-dimensional finite element model of underground powerhouse of a hydropower station is established by using finite element software ANSYS, and its dynamic calculation is carried out. The influence of internal vibration on the structure of powerhouse is mainly studied. The research results show that the vibration load of the unit plays an obvious role on the floor slab and the wind-cover machine piers and the whole structure of the powerhouse can meet the requirements of the safe operation of the hydropower station.
【作者单位】: 武汉大学水利水电学院;
【分类号】:TV731.6;TV312
本文编号:2197083
[Abstract]:The vibration energy induced by all kinds of exciting forces in the operation of hydropower units is very large, which will directly affect the powerhouse structure as the support system of the unit, and threaten the safety of the powerhouse structure directly when it is serious. Therefore, based on the theory of linear elastic dynamic finite element calculation, a three-dimensional finite element model of underground powerhouse of a hydropower station is established by using finite element software ANSYS, and its dynamic calculation is carried out. The influence of internal vibration on the structure of powerhouse is mainly studied. The research results show that the vibration load of the unit plays an obvious role on the floor slab and the wind-cover machine piers and the whole structure of the powerhouse can meet the requirements of the safe operation of the hydropower station.
【作者单位】: 武汉大学水利水电学院;
【分类号】:TV731.6;TV312
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