The natural frequency and vibration mode are the principal modal parameters representing structure dynamic behavior as well as the important basis for evaluating bridge dynamic performance.
固有频率和振型是反映结构动力特性的主要模态参数，是评价桥梁动力性能的重要依据。
The double least squares approach is used to identify modal parameters.
文中采用了双最小二乘逼近来识别系统的模态参数。
Should I use all collected measurements when estimating modal parameters?
估计模态参数时，要用上全部的测量数据吗？
The modal parameters of the equipments for oil extraction are identified.
本文通过脉动试验识别了采油生产设备的模态参数。
It's one that comes up often in terms of estimating modal parameters from test data.
这是个很好的问题，是一个从试验数据中估计模态参数常常会遇见的问题。
This paper adopts a new method of tire modeling which USES experimental modal parameters.
采用一种新的思想进行轮胎建模研究，即用试验模态参数建立轮胎动力学模型。
The process of determining modal parameters from experimental data involves several phases.
从试验数据确定模态参数的过程分成几个阶段。
Tire is a crucial part of car. Tire modal parameters describe its inherent characteristics.
轮胎是汽车的关键部件，轮胎的模态参数反映其本质特性。
So the use of multiple referenced data is a tremendous help in determining modal parameters.
因此利用多参考点数据对于确定模态参数是极其有帮助的。
The latter identified the modal parameters of the bridge by admittance circle fitting method.
由导纳圆拟合法识别出了桥梁的模态参数。
An engine casing modal experiment and modal parameters extraction have been introduced in the paper.
用模态实验的方法对某型飞机发动机机匣的模态参数进行了识别。
The modal parameters of each model are measured, and the zoom technique is used at some particular points.
通过试验测定了各模型的模态参数，有些点还采用了频率细化技术。
This paper studied the linear structure system modal parameters identification based on Genetic Algorithms.
本文系统地研究了基于遗传算法的线性结构系统模态参数识别方法。
Using the new algorithm, the higher precision of the global identification of modal parameters is obtained.
采用该法可显著提高模态参数的整体识别精度。
Based on this, bring forward the BP neural network structural damage detection method based on modal parameters.
在此基础上提出了基于模态参数的BP神经网络结构损伤识别方法。
Based on the experimental modal analysis, compare the modal parameters to verify the validity of finite element model.
在试验模态分析基础上，对比分析模态参数，验证有限元模型的有效性。
The paper studies digital processing methods which identify structural modal parameters from structural random response.
本文研究在未知激振力情况下，由结构随机响应识别结构模态参数的数字处理方法。
The net is trained by parts of modal parameters got by the experiments, and is verified by the rest of modal parameters.
利用模型实验所得到的部分模态参数进行BP网络训练，再用其余部分数据对网络功能进行验证。
An improved crack inspection method based on modal parameters was presented for identifying a crack in a jacket platform.
将基于模态参数的损伤检测方法应用于海洋平台，并进行改进。
The initial modal parameters are then identified with the experimental approach, theoretical approach and hybrid approach.
用实验方法、解析方法和混合方法进行了模态参数的初步识别。
It was concluded that the modal parameters of two types of tires reflect their different macroscopic properties evidently.
对比所获得的模态参数，可看出两种轮胎的模态参数明显地表征了它们的不同宏观特征。
Furthermore, the identification precision of the neural network to different order of the modal parameters is also studied.
讨论了网络对不同阶数模态参数的识别精度。
The testing of structural modal parameters is an important basis of dynamic response analysis and structural damage detection.
结构模态参数的测试是进一步进行结构动力响应计算、结构损伤检测等的重要基础。
The identification of modal parameters of a vibration system by means of random response and free response signal is discussed.
本文讨论利用振动系统的随机响应和自由响应信号识别系统模态参数问题。
Complex modal analysis is then performed to calculate the eigenvalues and eigenvectors, and then modal parameters are obtained.
采用复模态分析求取特征值和特征向量，进而得到系统的模态参数。
Focusing on this problem, a modal parameters identification algorithm based on left matrix fraction description of FRF was proposed.
针对该问题，提出一种基于频响函数左矩阵分式模型的模态参数识别方法。
Modal models describe structure inherent dynamic characteristics, thus structural damage will result in changes in modal parameters.
模态模型描述机械结构的固有动态特性，结构损伤将导致模态参数的变化。
On this basis, the mobility circle fitting method for identifying the complex modal parameters from frequency response data is discussed.
在此基础上，介绍了由频响数据识别复模态参数的导纳圆拟合法。
The research of dissertation also includes structural modeling referring to modules of structure model input and modal parameters output.
本文还对结构模型输入和模态参数输出模块中涉及到的结构建模进行了研究。
The research of dissertation also includes structural modeling referring to modules of structure model input and modal parameters output.
本文还对结构模型输入和模态参数输出模块中涉及到的结构建模进行了研究。
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