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莲花水电站厂房结构设计中机墩风罩及定子制动器基础是重要设计项目之一。通过三维空间有限元数值计算,对风罩与机墩结构验算了其在动力条件下的共振效应及其振幅,并分析了在各种外载与温度变化等因素共同作用下的应力应变及内力,校核了局部主拉应力及孔洞周边应力。计算结果表明,成果较为精确。
One of the important design projects is the base of the wind tunnel and stator brakes in the structural design of the Lianhua Hydropower Plant. Through the three-dimensional finite element numerical calculation, the resonance effect and amplitude of the wind shield and the pier under the dynamic conditions are checked, and the stress-strain and internal force under the combined action of various external loads and temperature changes are analyzed , Checked the local main tensile stress and the stress around the hole. The calculation results show that the result is more accurate.