本文目的就是要建立一套适合于水轮机转轮叶片刚强度与振动的分析模型和计算方法。
This thesis aims at developing a model and calculation method of rigidity, strength and vibration of the blade .
提出了一种新的振动搅拌方案，其特点是搅拌叶片在工作时处于共振状态，以解决振动强度大和机器寿命的矛盾。
A new vibratory mixing plan with features that the mixing plate is in resonance when mixer works is presented to solve the contradiction between the vibratory intensity and mixer life.
叶片振动测量对航空发动机、电站涡轮机及各种压气机的强度设计和研究及安全监测非常重要。
It is important to measure blades vibration for the intensity design and for safely monitor of air engines, turbines of power station and compressors.
水轮机转轮叶片的刚强度与振动特性分析对水轮机的优化设计、稳定运行、防止事故发生等都有重要的理论与实际意义。
Rigidity, strength and vibration analysis are important to the blade of hydrodynamic turbine, both in theoretical and actual fields, such as optimum design, stable operation and damage preventing.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算，最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
针对轴流式水轮发电机组在运行不长时间后，叶片出现大量有规律分布裂纹的缺陷，用有限元法对叶片进行了强度和振动计算；
This paper deals with a lot of crack failures in blades of axial_flow hydraulic turbine in operating, and calculated their strength and vibration characteristic by the finite element method.
针对轴流式水轮发电机组在运行不长时间后，叶片出现大量有规律分布裂纹的缺陷，用有限元法对叶片进行了强度和振动计算；
This paper deals with a lot of crack failures in blades of axial_flow hydraulic turbine in operating, and calculated their strength and vibration characteristic by the finite element method.
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