提出一种环境激励下的模态识别方法。
A kind of method of modal identification subject to ambient excitation is presented.
利用频域-空间域分解法，建立桥梁运行模态识别方法。
Operational modal analysis method of bridge was built based on frequency domain and spatial domain decomposition.
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。
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。
By using these two methods, the results of modal identification are analyzed and compared...
本文从理论上论证了观测响应中的噪声对ITD法模态识别精度的影响。
The effect of survey noises on the identification precision of ITD method is analyzed.
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。
Experimental modeling of a middle-rise office building via ambient modal identification is presented.
实验结果说明基于视觉和听觉的多模态识别算法能提高计算机对人的情感识别率。
The findings show that the audio and video information can be combined using a rule-based system to improve the recognition rate.
应用表明用有效模态质量进行模态识别，可以有助于找到尾轴架系统的固有频率和振型。
The practice application expresses that effective modal mass could be helpful to find natural frequency and vibration shape.
应用模态识别技术对某轻型客车动力总成弯曲振动的固有特性进行了测试，设计了一阻尼式动力吸振器。
After testing the intrinsic characteristic of power assemblys flexural vibration of a light passenger coach with modal cognition technology, a damping power shock absorber is designed.
本文基于应变模态的工作，利用应变模态识别得到的振型和频率结果，提出广义应变比能（GSED）的概念。
The paper gives a new concept generalized strain energy density (GSED). It is based on the strain mode frequency and mode shape. It is very effective and its physical meaning is clear.
结果表明，多参考点互相关差分模型能够有效地进行环境激励下的模态识别，并且多项式特征值法比增广矩阵法所得结果更好。
It shows that the presented method can be used to identify modal parameters effectively under ambient excitation and that the polynomial eigenvalue method is superior to the augmented matrix method.
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。
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.
从目前发表的文章看，仅仅利用损伤结构的模态参数进行损伤识别的极少。
From article published at present, it is few only using damaged mode parameter of structure to identify the damage.
曲率模态在结构损伤识别中有很好的应用。
Curvature mode is an excellent parameter in damage identification of structures.
我们通过自动化学习，把正常的业务模态化数据流分离出来，把存在恶意攻击的语句识别出来。
We learn through automation, the normal operation of the business model data flow out, the existence of malicious attacks to identify the statement.
这对于人机自然交互，听觉视觉双模态语音识别，计算机视觉的研究都有重要意义。
It is important for the study of man machine natural interaction, audiovisual bimodal speech recognition and computer vision.
试验模态分析是识别机械结构系统固有特性的一种常用、有效的现代技术。
The test modal analysis is an effective means to identify the intrinsic attribute of a mechanical structure.
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 present paper offers a method of balancing dynamically the flexible rotors with the technique of modal parameter identification.
应变模态参数和模式识别理论来源于机械工程领域，是在最近十来年才引入建筑结构中来的。
Strain mode parameter and mode identification theory originate from mechanical engineering territory. They are used to structure engineering lately.
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。
The identification of modal parameters of a vibration system by means of random response and free response signal is discussed.
从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。
The influence of noise on identification precision, the effect factor of the computing precision and the reason of missing estimation some modes were analyzed and discussed.
由于结构频率测试容易测试并且有较高的测量精度，因此成为损伤识别中广泛应用的模态参数。
The variation of structural frequency before and after the damage is believed to be a most available and widely used modal parameter because of its easy testability and high measure precision.
基于投影估计子空间跟踪算法提出了一种新的可用于时变结构模态参数识别的递推子空间方法。
A novel recursive subspace method is presented for pseudo-modal parameter identification of time-varying structures based on projection approximation subspace tracking algorithm.
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。
The result shows that the multiple ARX model is suitable for modal identification of the large civil engineering structures on line.
为了准确识别裂纹的位置和提高识别的精度，提出了采用模态频率的变化来识别裂纹的方法。
In order to discern position of crack accurately and improve precision discerned, method to discern crack has been proposed adopting the change of mode frequency.
为了实现结构基于振动特性的健康监测，进行了在线模态参数识别。
Structure modal parameter online identification was used to monitor the structural health as evidenced by changes in the vibration characteristics.
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。
The initial modal parameters are then identified with the experimental approach, theoretical approach and hybrid approach.
作为方法的应用实例，讨论了补充激振力为脉冲情况下的模态参数识别方法。
As a application example of this kind of method, a way of identifying modal parameters when additional external force is impulse is investigated.
轴承-转子系统模态参数时域识别对于回转机械的状态监测与故障诊断具有重要意义。
The time domain identification of model parameters of rotor bearing systems is helpful for condition monitoring and fault diagnosis of rotating machines.
轴承-转子系统模态参数时域识别对于回转机械的状态监测与故障诊断具有重要意义。
The time domain identification of model parameters of rotor bearing systems is helpful for condition monitoring and fault diagnosis of rotating machines.
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