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阶振

阶振

阶振

2

The result shows that the liquid sloshing appears as long period and combination of multi-modes.

结果表明：罐内液体的晃动是长周期运动，并且是多阶振型的组合。

3

The target displacement of each mode in pushover analysis can be obtained with inelastic spectrums .

对应每阶振型下推覆分析的目标位移采用弹塑性反应谱来计算。

4

meanwhile it exploringly analyzes and studies the natural frequency and dynamic performance of the shell of ranging arm .

同时还对摇臂壳体固有频率、各阶振型、动力性能进行了探索性分析研究。

5

At first, the author deduces the theory o f change rate of the first mode shape and difference of flexibility for damage detection.

文章首先分别推导了一阶振型变化率和柔度差的识别理论；

6

Then, on the basis of the variation of the first mode , the new detecting method is put forward .

以此为基础，提出基于一阶振型变化率的板壳结构的损伤诊断方法。

7

The higher modes have shorter periods than the fundamental mode and , moreover, they have higher velocities .

高振型波比基阶振型波周期短，波速高。

8

The model is used in modal analysis and we get the sensors first four modes of vibration and its natural frequencies .

对该模型进行模态分析得出了它的前四阶振型和固有频率。

9

considering the pile -soil -structure interaction effects on structures mainly appear the advanced stage and so on.

考虑桩 —土 —结构相互作用对结构的影响主要出现在高阶振型阶段等。

10

And, when the isolation layer has a medium position , the higher mode's effect will increase . 3.

同时当隔震层处于结构中部位置时，高阶振型影响增大。

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