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.
实验结果和理论计算结果比较表明：该方法为参数时变线性系统的模态参数辨识提供一条新途径。
The identification results have indicated that the proposed method is an effective tool for modal parameters identification of time-variant linear system.
文中的数值算例分别验证了模态参数辨识及动态载荷识别方法的合理性、适用性及计算程序编制的正确性。
The numerical examples explain that the method of modal parameter identification and load identification in this thesis both are reasonable, applicable for factual engineering.
通过三自由度模型模态参数的辨识，表明连续小波变换对于大型结构的模态参数辨识准确度高，具有现实意义。
The identification results of the 3-dof model parameters show that the continuous wavelet transform has high accuracy for the modal parameter identification of the large-scale structure.
论文使用了现代参数辨识技术的ARMAX模型递推法和状态子空间辨识法，对飞行颤振试验数据进行处理，辨识飞机的颤振模态参数。
ARMAX model method and subspace-based state space method were used to process the flight flutter test data, and identify the flutter modal parameters of aircraft.
所提出的“参数辨识模型”具有良好的模型结构，对目标的各种运动模态具有广泛的适应能力。
The proposed model is an optimized model structure and has a strong adaptability in kinds of mode of moveable target.
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。
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.
此外，利用该桥的实测数据分析了结构固有频率受温度的影响规律，修正了结构模态参数的辨识值。
Then the temperature effect on the structural model frequency is analysed, and the model parameter identification results are modified.
此外，利用该桥的实测数据分析了结构固有频率受温度的影响规律，修正了结构模态参数的辨识值。
Then the temperature effect on the structural model frequency is analysed, and the model parameter identification results are modified.
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