mode shape

Mode shape modification and truncation in the simulation of dynamic boundary conditions

动力学边界模拟中的振型修正与模态截断

However, an exact relation between the normal mode shape and the complex FRF does exist.

然而, 正规振型与复频响函数间的确存在一正确的关系.

Natural vibration characteristic of gun tube was analyzed triumphantly. Vibration frequency and mode shape were obtained.

对某火炮身管固有振动特性进行了分析，计算得到了振动频率和振型。

To study the motion of flexible beam, a dynamic model concerning dynamics stiffness effect is been made to solve the rigid-flexible coupling problem. Then a computable dynamic model is got by discrete the dynamic equations with mode shape method.

对于柔性梁的运动，充分考虑刚柔耦合效应，建立计及动力刚化效应的动力学模型，并用模态坐标法对动力学方程进行离散，得到适于数值计算的离散化模型。

The stochastic seismic response characteristics of the inequable loess stratum were mode shape decomposed method.

算例结果表明,非均匀黄土地层的地震反应具有明显的放大作用.

The natural frequency and mode shape are very important to design and operation.

桥梁的基频和振型对于桥梁设计和运营中的桥梁来讲是非常重要的参数.

The flexible offset of each flexible link is approximated through assumed mode shape method and then a fairly accurate theory model of the two-free-degrees and two-links planar flexible manipulators is formulated through the Lagrange energy analysis method.

使用假设模态法对柔性连杆的柔性偏移进行近似，并结合力学原理中的Lagrange能量分析法得到了平面两自由度双连杆柔性机械臂的一个相对精确的理论模型。

Study on Turbine Blade Vibration Mode Shape Measuring Method Based on Spectrum Analysis

基于频谱分析的叶片振型测量方法研究

The typical natural frequencies and mode shape as well as the dynamic amplification of some buttresses under excitation of different levels are also given.

文中还给出典型单墩的自振频率和振型，不同激振状态下各墩位的动力放大情况。

Curvature mode shape is also suitable for detection of multiple damage in a structure.

曲率模态振型对结构多个位置同时发生损伤的检测也有很好的效果.

The natural period of vibration, the displacement at the top of building and rotation angle of each floor and mode shape are obtained from the elasticity analysis.

通过分析，得出多遇地震下结构的周期、顶点位移、层间位移角、振型等；

During the course of model updating some related aspects are also calculated including extracting the real mode shape, freedom expansion, model reduction, calculating sensitivities, choosing parameters for model updating.

在修正的过程中应用了实模态提取、自由度扩展、模型缩减、灵敏度计算、修正参数的选择等方面的一些方法。

Theoretical mode analysis is made by establishing the dimensional dynamic infinite element model of BeiDa Bridge with Midas software, thus natural vibration frequency and mode shape of BeiDa Bridge theoretically are concluded.

利用Midas软件建立了北大桥的空间动力有限元模型，并进行了理论上的模态分析，得到了该桥理论上的自振频率与振型。

Need to establish a test mode shape make a prediction matrix.

我们需求树立一个测试形式构成做出预测矩阵。