The numerical flutter analysis system was formed by the three-dimensional numerical simulation of the vibrating cascade flow combined with the structural dynamics analysis of vibrating blade.
将振动叶栅三维流动数值模拟与振动叶片结构动力学分析相结合，建立了叶片颤振数值分析系统。
Because of relative movement of blade rows, the pressure distributions on the blade and the flow field in the cascade vary periodically.
由于叶排间的相互运动，使叶片表面压力和叶栅通道内的流场呈周期性地变化；
The eigenvalue method is presented for determining the effects of blade mistuning and blade-disk on cascade flutter boundaries in incompressible flow.
本文用特征值法研完了叶片频率失调及盘片耦合对叶栅颤振边界的影响。
Under high velocity flow conditions, cascade losses are mainly caused by radial drift of the boundary layer along the suction surface and by blade wakes.
在高速流动条件下，叶栅损失主要是吸力面边界层径向串流及其尾迹。
This blade can be used to produce counter pressure gradient at cascade passage end, reduce secondary flow loss, increase the efficiency of IP casing consequently, and improve the heat rate of units.
本文讨论了透平叶栅中的二次流产生的机理，并深入探讨了一种减少二次流损失的有效方法---叶片斜置和复合斜置技术，分析研究它对叶栅气动性能和级特性的影响。
This blade can be used to produce counter pressure gradient at cascade passage end, reduce secondary flow loss, increase the efficiency of IP casing consequently, and improve the heat rate of units.
本文讨论了透平叶栅中的二次流产生的机理，并深入探讨了一种减少二次流损失的有效方法---叶片斜置和复合斜置技术，分析研究它对叶栅气动性能和级特性的影响。
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