A kind of method of modal identification subject to ambient excitation is presented.
提出一种环境激励下的模态识别方法。
By using these two methods, the results of modal identification are analyzed and compared...
文中还给出了两种方法模态识别的结果，并进行了比较和分析。
Experimental modeling of a middle-rise office building via ambient modal identification is presented.
通过环境激励模态识别技术对一座中高层新结构大楼环境激励试验建模研究。
By using these two methods, the results of modal identification are analyzed and compared in this paper.
文中还给出了两种方法模态识别的结果，并进行了比较和分析。
The result shows that the multiple ARX model is suitable for modal identification of the large civil engineering structures on line.
结果表明，多维arx模型用于大型土木工程结构的模态参数在线识别是可行的。
Finally, the present method is applied to the modal identification from the I/O data of FEM dynamic analysis and on board measurement for a container ship.
最后以一货柜轮之有限元素动态分析模拟与实船量测结果为例进行船体整体振动之态特性识别。
Due to the huge volume of civil engineering structure, the vibration excitation is a difficulty; the modal identification based on environmental excitation is available.
由于土木工程结构体积大、形状复杂，外加激励难，因而利用环境激励来获取土木工程结构的模态参数被认为是一种行之有效的方法。
The modal identification and excitative selectiion for large scale construction machinery are analyzed in this paper, and the proposed method has been used in enginnering practice.
本文介绍了大型建筑机械的试验模态分析法，对各激振方式的特点进行了分析，提出适用于大型建筑机械的激振方式并将其用于实践。
We picked the characteristic curve of the usual fault modal by the experiment and applied a BP network in fault diagnosis. And then we completed the fault diagnosis and modal identification.
通过实验提取一些常见故障模式的特性曲线，运用BP神经网络，实现了电液伺服阀的故障诊断和模式识别。
Two modal identification methods undergoing ambient excitation are investigated for the object of large structures based on modern experimental modal analysis theory and ambient vibration technology.
本文以大型工程结构为研究对象，以近代实验模态分析理论及环境振动识别技术为基础，着重研究了两类基于环境振动的模态参数识别方法。
In this thesis, the dynamic load identification of guyed mast method in time domain based on modal analysis is analyzed.
要解决这个问题，必须建立作用在桅杆结构上的动力风荷载的识别方法。
The present paper offers a method of balancing dynamically the flexible rotors with the technique of modal parameter identification.
本文提出利用模态参数识别技术进行挠性转子动平衡的方法。
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。
Modal analysis method is used to discuss the location and identification of the damages to reinforced concrete structure due to corrosion and cracking.
应用振动测试的模态分析方法，对钢筋混凝土结构锈裂损伤定位与识别进行了探讨。
Based on the generalized mode theory of linear vibrating defective systems, an identification method of generalized modal parameters is presented in this paper.
基于线性振动亏损系统的广义模态理论，本文提出了一种识别亏损系统广义模态参数的频域方法。
Firstly, the damage identification method based on vibration modal analysis theory is discussed and analyzed.
首先，本文对基于振动模态分析理论的损伤识别方法进行了探讨。
The severe numerical instability in complex frequency modal mass identification from frequency response function makes it difficult to identify physical parameters.
利用频响函数识别复频率模态质量存在着严重的数值计算不稳定性，给物理参数的识别造成困难。
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。
The method of damage identification with modal index and the artificial neural networks is introduced in this paper.
介绍了使用模态指标及神经网络进行结构损伤识别的方法。
Focusing on the defects of the classical modal parameter estimation approach, this paper investigates a novel technique for modal parameter identification of structures under operation conditions.
针对传统模态辨识方法存在的缺陷，研究了工程结构在环境激励下的模态参数的辨识问题。
Based on the identification objective, the structural identification methods can be divided into modal parameter identification and structural physical parameter identification.
结构系统识别方法根据识别的对象可以分为模态参数识别和结构物理参数识别。
Real modal parameter identification has been used and 13 modes are identified. The obtained modes are compared with the results from steady exciting, ambient vibration and FEM calculation.
在识别中采用了实模态识别法，识别出前13个模态参数，并与稳态激振、环境振动及有限元计算进行了比较，结果是比较符合的。
Based on the conception of the discrete modal filter, a force identification model is proposed to emend the classical modal model method.
基于模态滤波器概念提出了对载荷识别模态模型法的原理性校正方案，构造了动载荷识别的离散模态滤波器模型。
Study on technology for the experimental modal test and parameter identification of the light thin plate retaining wall.
轻型薄板式挡土墙试验模态测试与参数识别技术研究。
Modal test and parameter identification of a wind tunnel flutter model simulating a wing with external missiles are presented in this paper.
本文介绍了带外挂风洞颤振模型模态试验与参数识别方法。
Modal test and parameter identification of a wind tunnel flutter model, similar to a wing with external missiles, are presented in this paper.
本文介绍了带外挂风洞颤振模型模态试验与参数识别方法。
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。
A new method called direct eigensystem realization algorithm (DERA) is developed for structural modal parameter identification.
本文提出了一种新的结构模态参数识别算法，称为直接特征系统实现算法(DERA)。
A new method called direct eigensystem realization algorithm (DERA) is developed for structural modal parameter identification.
本文提出了一种新的结构模态参数识别算法，称为直接特征系统实现算法(DERA)。
应用推荐