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。
Finally, Based the analysis of theory modal, a modal testing program has been designed according to the existing test equipments, which prepares for the next testing of the vibration and noise.
在理论模态分析的基础上，根据现有的试验设备设计了合理的试验方案，为下步的振动与噪声的试验做了必要的理论准备。
The results indicate that the simulation results are close to the experimental ones that the modal can be used for simulation of vibration test with attached structural members on it.
仿真结果表明，空台正弦扫描试验仿真得到的台面各节点加速度幅值与试验结果比较接近，所建立的模型可用于试件振动台试验仿真。
In this paper, the vibration characteristics of frame foundation for steam turbine generator set is 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。
This paper presents a synthesized model updating method using the modal parameters and frequency response functions(FRF) extracted from the vibration test data.
文章提出了一种利用模态参数和由振动试验数据求得的频响函数来进行模型修正的方法。
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。
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。
Ambient vibration test is the main method of detecting a large bridge structure, Modal parameters is important to determine the health status of the bridge.
环境振动试验是检测大型桥梁结构的主要方法，检测得到的模态参数是判定桥梁健康状况的重要依据。
The paper applies the vibration theory, modal analysis theory and the technique of vibration testing & signal processing to make an analysis of the calculating modal and test dynamic characteristics.
应用振动理论、有限元方法、模态分析理论对干燥机进行了计算模态分析和动态试验。
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。
The second test aims to a motor frame, we can conclude from the experiment that the instrument can analyze multiple modes of complex structure and display its modal vibration shapes.
其次对一摩托车架进行了试验模态分析，试验表明仪器能较好地分析出车架的多阶模态，并显示出其模态振型。
Meanwhile, the modal analysis is used to test the detection arm's natural frequency and structural vibration modes, which provides a reference for the stability test of the bridge inspection vehicle.
同时对检测臂进行了模态分析，测出了其固有频率和结构振型，为检测车工作时的稳定性要求提供了参考。
Based on the experimental results of the above three methods, modal parameters of the vibration test bench are determined by the comprehensive analysis.
通过对上述三种方法实验结果的综合分析，确定振动教学实验台的模态参数。
Through building a 1:10 model of spring vibration isolated turbine-generator foundation, this paper study it by modal test.
本文通过设计制作1：10模型对汽轮机发电机组弹簧隔振基础进行试验研究。
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 dynamic parameters in the equations are determined by the modal vibration test.
通过模态振动实验识别其中有关的动力参数。
Recently the modal test of the large structure parts is one of the hot themes in the vibration domain.
对大型结构件做模态试验是近年来振动界的热门话题之一。
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。
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。
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