blade flutter meaning in English

叶片颤振

So , the correct prediction of the blade flutter is very important in the design and modification of the turbomachine
因此，建立叶片颤振分析预测系统对叶轮机设计和改型是十分必要的。
Based on the computational fluid dynamics and structural dynamics methods , a numerical analysis system for the blade flutter in turbomachinery was established
在此基础上，结合叶片振动结构动力学分析，初步建立了相对完整的叶片颤振数值分析系统。
The flows in the case of different reduced frequencies are computed respectively for two blade profiles . by comparing the time curves of relative parameters in oscillating cascades and the flow field contours under different conditions , it is indicated that the reduced frequency is an important factor to determine whether the blade flutter happens or not
针对两种叶型分别计算了不同折合频率下的流场，通过比较振动叶栅相关参数随时间变化的曲线及流场云图，表明折合频率是决定叶片颤振与否的重要因素。