Paper Title:
Random Decrement Technique Based on the Sampling Methods
  Abstract

This paper presents the random decrement (RD) technique based on the sampling method for parameter identification of linear dynamic system. The development of RD technique was elaborated briefly in the aspects of identifying the dynamic properties, and then this paper summarized the corresponding parameters recognition problems due to the quantity and quality of measured sampling segments. Detailed analysis of two kinds of sampling method (the probability-proportional-to-size and two-stage sampling) is conducted to investigate its adaptation range in extracting RD signatures. The results of two simulated examples indicates that in view of the different vibration parameter recognition situation, the above provided RD technique based on different sampling methods could improve the quality of RD signature obviously, and lead to a quite accurate frequency and the damping ratio of structural system under the effective use of all measured sampling segments.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
5413-5419
DOI
10.4028/www.scientific.net/AMR.243-249.5413
Citation
C. X. Zhang, W. H. Shi, Z. N. Li, "Random Decrement Technique Based on the Sampling Methods", Advanced Materials Research, Vols. 243-249, pp. 5413-5419, 2011
Online since
May 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: Yong Hyeon Cho, Jang Moo Lee, Sung Yong Park, Eung Shin Lee
Abstract:The aim of this paper is to propose a robust method for extracting damping ratios of a railway contact wire using a continuous wavelet...
1629
Authors: Huang Sheng Sun, Li Nuo Cheng
Abstract:In order to research the optimal parameters of dampers linking adjacent structures for seismic mitigation, two SDOF systems connected with...
3832
Authors: Zhao Wang Xia, Xiao Min Qi, Hua Bing Wen
Chapter 3: Mechatronics and Automation
Abstract:This work presents a test model of a vibration isolation system with magneto-rheological (MR) damper, and the Bingham model to describe the...
2190
Authors: Rui Xue Chen, Ling Yun Peng, Wei Ming Yan
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Abstract:This article summarizes the work regarding the complex and viscous damping models of SDOF system. Through calculating dynamic equations based...
938
Authors: Hai Yan Jing, Yan Ping Zheng, Ming Xia Fang
Chapter 5: Materials Science & Engineering
Abstract:Through dynamics test and theoretical analysis about rubber bearings in Auto body’s sub-frame, and the past research results of sinusoidal...
602