vibration modal test的意思|示意

Vibration characteristic was calculated by using finite element transfer matrix method of multibody system and modal test was completed for a certain naval gun.

使用有限元传递矩阵法分析了某大长径比弹箭的固有振动特性，成功求得了其固有振动频率和振型函数，计算结果得到试验验证。

In this paper, the vibration characteristics of frame foundation for steam turbine-generator set are performed by model modal test method.

采用模型模态试验方法对汽轮发电机组框架式基础的振动特性进行了研究。

A good example of this brings to mind a recent modal test on a troublesome torsional vibration shaker system.

这个很好的例子使我想起了近期的一次模态试验，试验是在一个棘手的扭转振动台系统上进行的。

The new techniques are described in detail, including the mathematical model updating for complex structures, the virtual modal test techniques and the virtual vibration test techniques of shaker.

文中较详细地介绍了复杂结构模型修改新技术、虚拟模态试验技术和振动台虚拟振动试验技术。

The finite element model of the tower is further dynamically updated according to ambient vibration test through modal sensitivity based model updating method.

在此基础上，采用基于灵敏度分析的模型参数修正方法，结合索塔动力特性的测试结果对索塔的初始有限元模型进行了动力修正。

The contrastive analysis of modal test and simulation computation show that the finite element model of body-in-white has well represented the vibration characteristics of the original structure.

模态试验和仿真计算的对比分析结果表明，所建立的白车身有限元模型较好地反映了原结构的振动特性。