通过大量管材弯曲试验，分析了沿弯曲线的切向和管壁厚方向的应力应变状态，给出弯管内、外侧管壁厚变化量和切向应变的近似计算公式。
Based on lots of tube bending experiments, the stress-strain state along the tangential direction of bending line and the direction of the wall thickness is analyzed.
将水轮发电机组系统的振动问题分解为轴向振动、径向弯曲振动及切向扭转振动进行研究。
The vibration of axial, radial bend and tangent torsion direction on water turbine-generator unit is discussed.
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