考虑了扭曲叶片的弯曲扭转耦合振动的影响。介绍了状态矢量间的递推关系式。
Considering bending and torsional vibration in a twisted blade, the transfer formula of state vector is introduced.
从破坏形式可以断定叶片曾发生大幅度扭转颤振而且与不利地形有关。
It can be concluded from the failure modes that the blades flutter have occurred and significantly reversed, which was related to the negative terrain.
本文给出了预示水平轴风力机叶片挥舞—扭转耦合振动稳定边界的一种简单方法。
In this paper, a simplified method is which can be used to predict the stability boundaries of the horizontal-axis wind turbine blade undergoing the flap-pitch coupling vibrations.
阐述了扭转不等截面复杂叶片整体冲压成形的工艺方案、工艺难点及所采取的技术措施。
Technical method of integral stamping twist vane cores with unequal sections and the technological difficulties and technical measures to he taken are presented in the paper.
采用三维实体模型，对自带围带的汽轮机扭曲长叶片的扭转恢复角进行了计算分析。
By using 3d solid model, the twist-back Angle of steam turbine twisted long blade with integral shroud was analyzed and calculated.
采用三维实体模型，对自带围带的汽轮机扭曲长叶片的扭转恢复角进行了计算分析。
By using 3d solid model, the twist-back Angle of steam turbine twisted long blade with integral shroud was analyzed and calculated.
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