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- LI Zhongfu, HUA Hongxing, SONG Hanwen, et al. Operating modal parameter identification under ambient excitation [J]. Journal of Shanghai Jiaotong University, 2001(8):1 167-1 171. 李中付;华宏星;宋汉文;等.;基于环境激励的工作模态参数识别[J]
- Operating Modal Parameter Identification Under Ambient Excitation 基于环境激励的工作模态参数识别
- operational modal parameter 工作模态参数
- Operating Modal Parameters Extraction Using Cross-correlation Complex Exponential Method 采用互相关复指数法进行工作模态参数识别
- An operational modal analysis technique is applied on sequential vibration measurements to characterise the dynamic behaviour of the rolling tire. 业务模态分析技术应用于连续振动测量的特征的动态行为的滚动轮胎。
- Abstract: The empirical mode decomposition (EMD) combined with the random decrement technique (RDT) was pro-posed for structural modal parameter identification. 摘要结合南京长江大桥结构健康监测信号,提出将经验模态分解(EMD)与随机减量技术(RDT)相结合进行结构模态参数识别的方法。
- Abstract: The modal parameter identification was contrastively carried out to test the components of AZ91D magnesium alloy and A380 aluminum alloy with the same structure. 摘 要: 采用多参考最小二乘复频法对具有相同结构的AZ91D镁合金试件和A380铝合金试件进行模态参数识别。
- Keywords: VBARX, system identification, state space model, modal parameters. 关键词:VBARX、系统识别、状态空间、模态参数。
- It confines the function of the SHM system. Therefore, the further research of modal parameter identification (MPI) and DI method adapting the need of on-line SHM system has the important theoretical significance and engineering practical value. 因此,进一步深入研究能适应大型土木工程结构实时健康监测系统需要的模态参数识别和损伤识别方法具有重要的理论意义和工程实际应用价值。
- In this paper,the modal parameter is obtained from the datas of random vibration test of a trussed frame,and comparison with the results of the modal test is given.The feasibility of the i... 然后以桁架结构为例,通过随机振动试验数据求得模态参数,并与模态试验的结果相比较,证明该方法的可行性。
- Taking the miter gate of a large lock as an example, this article introduces the operation modal analysis (OMA). 摘要以葛洲坝3%23船闸为例,介绍了大型船闸人字闸门工作模态试验分析。
- Take model of drill pipe frame as a example, experimental modal based on ODS's testing method is studied and the modal parameter is distinguished and the testing results are analyzed. 以钻架模型为实例,研究了其ODS测试方法试验模态,识别其模态参数,分析其测试结果。
- A concept of global frequency response function(GFRF) has been presented. The MIMO modal parameter identification modal has been established,based on the weighting sum of modal shape squares. 提出了整体频响函数的新概念(GFRF).以振型平方和的形式对全部频响函数进行加权组合,建立了多输入多输出模态参数的识别模型。
- operational modal identification 运行模态识别
- In this paper, the empirical genetic-simplex algorithm is applied to structural physical parameter identification based on incomplete modal parameters. 本文将这一方法应用于不完全模态参数已知条件下的结构物理参数识别研究。
- The change can be represented in terms of either the modal parameters or the structural parameters. 文中将柔度投影法和遗传算法相结合,提出一种基于不完整模态数据的结构损伤定位和定量评估的两阶段法。
- The modal parameters of the sub-soiling shovel were identified by signal analysis software. 用信号分析软件进行深松铲的模态参数识别。
- Using the principle of mode superposition, the formula is given for finding the modal parameters. 利用振型叠加原理,求得整机的动态特性的模态参数表达式。
- A method of cross-point admittance based on ambient excitation to identify large engineering structures modal parameters was reported in this paper. 摘要提出了基于环境激励下,运用跨点导纳法识别大型工程结构模态参数的一种方法。
- The experiments and analysis show that MAC can make the normal modal identifying methods more complete,and quantify the accessing of modal parameters. 实验和分析计算表明,MAC可以弥补常用模态识别方法的不足,使模态参数的评估定量化。