1) frequency veering
频率转向
1.
Characteristic analysis of frequency veering and mode interaction of bladed disks;
叶盘系统频率转向与模态耦合特性分析
2.
To our knowledge,beam function method is different from what are used by the very few papers we have found in the open literature for studying frequency veering.
针对航空发动机叶片的结构和运行特点,基于薄板弯曲理论,采用梁函数组合法推导了在变转速状态下悬臂板频率和振型的解析解一般表达式,研究了叶片在离心力作用下的"频率转向"特性和模态振型的变化规律,分析叶片展弦比对"频率转向"特性和模态振型的影响规律,较为详细地讨论了在"动频交叉点"叶片的模态振型。
2) multi-frequency veering
多频率转向
3) frequency loci veering
频率曲线转向
4) transverse gyro frequency
横向旋转频率
5) wind direction frequency
风向频率
1.
CFD numerical simulation coupling with the wind direction frequency weighted(WDFW) method was carried out based on the conditions that were measured.
运用风向频率加权(WDFW)方法,结合大气流动和污染物扩散的CFD模型进行数值模拟计算。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条