模态

According to the applicable standards, there is only the requirement on the vertical bending vibration frequency of the carbody to be higher than 10Hz, while there is none against the frequency of transverse bending vibration and the carbody torsion vibration around the longitudinal axis.

根据有关标准，只要求车体的垂向弯曲振动频率大于10Hz，对侧墙横向弯曲振动频率、车体绕纵向轴扭转振动频率没有具体要求，因此在进行车体模态分析时，把顶盖看成设备，而不必考虑顶盖结构的影响。

Based on the principle of Hamilton, dividing the main blade, flexbeam and torque tube into several beam elements, the bearingless rotor is nonlinearly modeled in this paper through modal transformation. By Newton-Raphson iteration and temporal finite element method, the above nonlinear equations are solved.

将无轴承旋翼的主桨叶、柔性梁和套管3个部分各自离散成若干梁单元，并将桨叶运动的物理坐标转换为挥舞、摆振、扭转方向的模态坐标，根据Hamilton原理建立旋翼气弹分析的动力学模型。

The flexible workpiece vibration modes are available for partitioning the distinct machining stages that denote the dynamic variation characteristics of the workpiece in the process and for selecting the high-order dynamic frequency modes that can produce the displacement at the tool-cutting position as the virtual vibration modes to predict the cutting stability.

根据薄壁零件的振型模态，划分表示工件在加工过程中动态特性变化的不同加工阶段、选取能够在刀具切削位置激起振动位移的高阶动态频响模型作为预测切削稳定性的有效振型。

Based on a FE model of a three-span continuous rigid frame bridge, the updating effects of the three techniques have been evaluated when different model information, different structural parameters and different level of noise are considered.

基于一座三跨刚构－连续梁桥有限元模型，通过七种不同工况的模型修正计算，研究了这三种方法在不同模态信息量、不同误差参数以及不同噪声水平下的修正效果。

The part of feature retrieval proposed a three-layered framework for multi-feature video retrieval which was composed of presentation, logic and transaction layer.

SupEye系统在分析MPEG-7标准的基础上解决了视频特征与用户检索特征的分离、样例查询中的特征分析以及多模态查询的结果融合问题。

Rotating three-faced beryllium mirror ; structural strength and deformation magnitude of surface ; modal analysis ; finite-element method

超高速摄影；三面体铍转镜；结构强度与镜面变形量；振动模态分析；有限元法

The vertical tail size is not set to avoid spiral instability because this mode is not critical.

垂尾的大小不是根据避免螺旋不稳定来确定的。因为这种运动模态不是设计状态。

Solid Model Mode Operations Note: If stock removal simulation is to be accurately dipicted, the tool di- mensions must be correctly defined in the Tool Table Ifstockremovalsimulationistobeaccuratelydepicted,thetooldimensions must be correctly defined in the Tool Table.

坚硬的样板模态操作注意：如果存货的移动模拟将确地是 dipicted，工具 di- mensions 一定确地在工具桌子被定义 Ifstockremovalsimulationistobeaccuratelydepicted，thetooldimensions 一定确地在工具桌子被定义。

Shaker ; modal analysis ; vertical response ; slip table ; reinforced panel

电动振动台；模态分析；垂向响应；水平滑台；加强台面

The results show that the most dangerous position is near the joint of two-level series-wound mechanism, in which the failure happened easily.

从模态分析的结果可知，传动机构各构件危险部位多发生在靠近两级串联机构相连处附近，其失效多发生在这些部位。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷