Paper Title:
Experimental Studies on Application of Digital Image Correlation in Modal Parameter Identification
  Abstract

The accurate identification of modal parameters is the core content in the experiment modal analysis of structure. The effective and accurate collection of vibration dates comes to be as the premise of high precise identification. This paper presents a new method of data collection in modal parameter identification. By high-speed camera, time series images of vibration were obtained; Then, the images collected were processed using digital image correlation method, and the time-displacement graphic on vibration direction of some pixels selected was got; Finally ,the time-domain signal was post-processed based on the complex Morlet wavelet transform, and the modal parameters were got. By a specific experiment, the method was proved feasible and effective.

  Info
Periodical
Chapter
Chapter 1: Vibration Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
238-243
DOI
10.4028/www.scientific.net/AMM.105-107.238
Citation
E. L. Dong, W. H. Wang, W. Zhang, "Experimental Studies on Application of Digital Image Correlation in Modal Parameter Identification", Applied Mechanics and Materials, Vols. 105-107, pp. 238-243, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Xin Zhu, Zeng Liang Gao
Abstract:The measurement of crack propagation in solids is of vital importance for the research of the fatigue characteristic of solid materials. By...
2606
Authors: Cheng Yang, Tao Feng
Chapter 3: Functional Manufacturing and Information Technology
Abstract:In order to identify engine status correctly, a novel method of abnormal noise diagnosis of internal combustion engine based on the wavelet...
168
Authors: Mao Jiang, Ling Zhou, Ying Tao Li, Hai Qing Zhou, Jun Shao
Chapter 3: Civil Engineering
Abstract:In order to explore the effective damage identification method for structure, the structural vibration signal is directly correlation...
1342
Authors: Ling Li Jiang, Bo Bo Li, Xue Jun Li
Chapter 3: Mechanical Transmission, Vibration and Noise
Abstract:Hilbert-Huang transform (HHT) is a very effective time-frequency analysis method, but it has some disadvantages. For example, the dense modal...
264
Authors: Zong Tao Li, Yu Guo, Heng Ye
Chapter 4: Data Acquisition, Data Mining and Data Processing
Abstract:Results of autocorrelation analysis algorithm by the LabVIEW are different from the theoretical results. To address the problem, a...
1125