Paper Title:
Stochastic Vector Identification and Uncertain Modal Parameter Estimation for a Smart Composite Beam
  Abstract

This study aims at identifying the modal characteristics and their uncertainties for a smart composite beam. The problem is addressed via Vector AutoRegressive with eXogenous excitation (VARX) models. The advantages of VARX modeling include simplicity of implementation, high accuracy, parsimony of representation, and capability of handling modal uncertainties. Two different approaches to assess the modal parameter uncertainties are investigated. The first is based upon linearizing the function that relates the VARX model parameters with the modal parameters, whereas the second is based upon computer simulations using the Monte Carlo and the bootstrap schemes. The results indicate that VARX modeling captures the system dynamics and provides accurate modal parameters with tight confidence intervals.

  Info
Periodical
Edited by
Pietro VINCENZINI and Fabio CASCIATI
Pages
453-458
DOI
10.4028/www.scientific.net/AST.56.453
Citation
J. D. Hios, S. D. Fassois, "Stochastic Vector Identification and Uncertain Modal Parameter Estimation for a Smart Composite Beam", Advances in Science and Technology, Vol. 56, pp. 453-458, 2008
Online since
September 2008
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: Zhe Feng Yu, Zhi Chun Yang
Abstract:A new method for structural damage detection based on the Cross Correlation Function Amplitude Vector (CorV) of the measured vibration...
2317
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
Authors: Xi Ping Sun, Zhen Yu Zhu, Bing Hao Zhao
Chapter 2: Structural Engineering
Abstract:The project intends to construct steel pipe piles on both sides of trestle wharf, and the soil vibrations caused by piling construction might...
908
Authors: Lin Lin Ma, Jie Wen, Cheng Wang, Long Lei Dong
Chapter 17: Signal and Intelligent Information Processing
Abstract:Because frequency dynamic load identification method will confront with the illness problem of finding the verse of coefficient matrix, a new...
2240
Authors: Yan Qi Li, Wei Zhang, Zong Zheng Yang
Chapter 1: Engineering Design of Machines and Equipment for Manufacturing
Abstract:To reduce the noise and vibration of mobile wastewater treatment plant, this paper presents testing and analysis of 50 measuring points in...
354