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。
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。
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。
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。
Structural modal parameter identification under ambient vibration is becoming the main research area.
基于环境振动的结构模态参数识别方法正逐渐成为国内外研究的一大热点。
In this paper, using the information of the forced vibration response of the deterministic modal system, identification are made for the parameters of the stiffness and damping structure.
本文利用确定性模型系统的的强迫振动响应信息对系统的刚度和阻尼结构参数进行了认别。
Structure modal parameter online identification was used to monitor the structural health as evidenced by changes in the vibration characteristics.
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。
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。
A method of modal parameter identification using datas of random vibration tests is introduced.
文章介绍了利用随机振动的试验数据进行模态参数辨识的方法。
A method of modal parameter identification using datas of random vibration tests is introduced.
文章介绍了利用随机振动的试验数据进行模态参数辨识的方法。
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