查询词典 mode of vibration

In this paper, a long divinable time evaluation and a short time prediction of some vibration signals of a turbine generator set is processed by the largest Lyapunov exponent mode. And the results show that the method is certainly accurate and reliable to predict future state of a turbine generator set. As a matter of fact, the method can be used to prediction to future running state of any other complex mechanical equipment.

运用最大Lyapunov指数预测模式对发电机组振动信号进行了最长可预测时间估计和短期预测研究，结果证明基于最大Lyapunov指数的预测模式在进行发电机组时序信号预测中具有良好的预测精度和可信度。

The nature of another metal-sensitive vibration mode at 1110-1116 cm-1, which was previouslyassigned to the C-H bending,is now re-assigned as an isoindole breathing mod e with some small contribution also from C-H in-plane bending.

另一个对金属大小敏感的振动区在1 110一1 1 16cm一'之间，这一特性己被定义为带有C一H平面弯曲振动的叫噪坏的呼吸振动模式。

Based on the finite element method, a fresh and unique type of footbridge, a papilionaceous partial tied arch footbridge, was analyzed. The influences to the whole structure's stress behavior, displacements, vibration periods and mode shapes under parabola and arc arch axis were discussed. Different selections of support forms, such as longitudinal slide or longitudinal hinge, led to different behaviors on structure.

针对一种新型而特殊的蝶式部分系杆拱步行桥，基于有限元数值分析比较抛物线形拱轴线和圆弧形拱轴线对整个结构受力、变形、周期和振型的影响，揭示选用纵向滑动支座与纵向不动铰支座时给结构性能带来的不同结果，对结构拉索张拉力的控制给出建议。

The characteristic vibration modes of pyridone ring and amino group were showed with normal mode analysis, the reason for the difference between theoretical bands and experimental spectrum was discussed.

通过简正分析，指认了吡啶酮环和氨基的特征振动频率，讨论了引起计算数据与实验结果差异的主要原因。

The vibration modes are tested with the laser doppler vibrometer (PSV-300F), and the experimental results prove that the design requirements on the mode shape of the actuator and nature frequency are satisfied.

利用PSV-300F多普勒激光测振仪对电机的工作模态进行了测试，实验结果表明，电机的工作振型和工作频率等均满足设计要求。

Methane adsorbed on the Mn〓O〓-Na〓WO〓/SiO〓 catalyst can not be found, but it can be adsorbed on outgassed silica at 173K. Such adsorption is formed by interaction of the adsorbed methane with O〓〓 sites and hydroxyls on the surface. The appearance of the band at 2904cm〓 of the V〓 mode (sym. stretch.), which is an infrared forbidden vibration, implies that the Td symmetry of the methane molecule may be distorted somewhat on the surface of silica. The small frequency shift (30cm〓) of OH stretching indicates that only a weak hydrogen-bonding interaction between adsorbed methane and hydroxyls exists in the methane adsorption.

甲烷不能在Mn2O3-Na2WO4/SiO2催化剂上吸附但在l73K的温度条件下可吸附于SiO〓表面上，这种吸附是通过吸附甲烷与表面配位不饱和氧和表面羟基作用而形成的，红外禁阻的V〓振动模式显示出红外活性说明甲烷分子的Td对称性发生畸变，甲烷吸附后羟基位移只有30cm〓，吸附甲烷同表面羟基间的氢键作用很弱。

Studying the effects of the relation between structural mode shape and direction of engine's shaking force on motorcycle's vibration is the subject of this paper. The studying method is based on test in association with the structural dynamic theory.

以实车量测的方式配合基本结构动态理论讨论机车引擎运转之振动传递特性，整车结构模态振型与引擎摇动力两者之间的关系对振动环境的影响是本篇论文的主题。

The calculated results show that azido in azides has linear structure , the most optimized CaN6 has linear structure , and the most optimized (CaN6)n (n=2～5) clusters have chain structure of perpendicularity of approximate diamond composed by two azido with two Ca atoms . The middle N atoms of azido show positive, the N atoms at both ends of azido show negative, and the N atoms effected with Ca atoms directly show more negative . There is strong ionic bond between the Ca and N atoms. The IR spectra of the most optimized (CaN6)n (n=1～5) clusters have four vibrational sections , the whole strongest vibrational peak lies in 2195～2280cm-1,and the vibrational mode is anti-symmetric stretching vibration of N-N bonds in azido . Stability analysis show that (CaN6)3 and (CaN6)5 clusters are more stable than other clusters .

结果表明，叠氮化合物中叠氮基以直线型存在，CaN6团簇的最稳定结构为线型结构，(CaN6)n(n=2～5)团簇首先由两个叠氮基与两个Ca原子构成一个近似菱形，再由菱形相互垂直形成链状最稳定结构；叠氮基中间的N原子显示正电性，两端的N原子显示负电性，且与Ca直接作用的N原子负电性更强，金属Ca原子和N原子之间形成很强的离子键；(CaN6)n(n=1～5)团簇最稳定结构的IR光谱分为4个部分，其最强振动峰均位于2195～2280cm-1，振动模式为叠氮基中N-N键的反对称伸缩振动；稳定性分析显示，(CaN6)3和(CaN6)5团簇相对于其他团簇较为稳定。

Results show that structural vibration can be dramatically decreased by changing the angle between the forcing direction of engine shaking and the oscillating direction of engine in structural mode.

实车量测结果与解析说明引擎本体之摆动方向与摇动力之进动方向的相对改变可以戏剧化改变车架的振动环境。

Design of a high-rise business-living building with double-tower structure with enlarged base ;2. Dynamic response analysis of an asymmetric two-tower tall storeyed building with enlarged base ;3. Based on the mode analysis and time-history analysis of two examples,the vibration characteristics of the connected twin-tower structures with enlarged base in vertical earthquake excitation was discussed in this paper,and the calculating results of the structures with or without connecter,both with enlarged base are compared.

采用平面杆系模型并用静力凝聚法消除结构耦联的水平自由度和转角自由度，结合两个算例的竖向振动模态分析和时程响应分析，探讨了大底盘双塔楼连体结构在竖向地震作用下的振动特性，对比了大底盘双塔楼结构有无连体结构形式的计算结果，得出了这种结构形式在竖向地震作用下的一些特性和具有参考价值的结论。

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