Ambient Vibrations in Structural Health Monitoring - PowerPoint PPT Presentation

1 / 11
About This Presentation
Title:

Ambient Vibrations in Structural Health Monitoring

Description:

Title: Ambient Vibrations in Structural Health Monitoring Author: Anthony Mizumori Last modified by: Created Date – PowerPoint PPT presentation

Number of Views:189
Avg rating:3.0/5.0
Slides: 12
Provided by: Anthon235
Category:

less

Transcript and Presenter's Notes

Title: Ambient Vibrations in Structural Health Monitoring


1
Recent Development and Application of Structural
Control and Health monitoring
Aiqun Li School of Civil Engineering Southeast
University June 2008
2
CONTENTS
  • Introduction
  • Viscoelastic Damper
  • Viscous Fluid Damper
  • Tuned Liquid Damper / Tuned Mass
  • Damper / Active Mass Damper
  • Challenges and Future Directions

3
Huge Weight
Real-time Control
Low Frequency
Economical
4
Viscous Fluid Damper
Loop of Damping Force and Displacement
Different kinds of Fluid Dampers
5
Application in Civil Engineering
Applied in Vibration Reducing of Buildings,
High-rise Buildings, Super High-rise
Buildings,Towers,Long-span Structures and
Bridges, etc.
6
Contents
  • Introduction
  • Structural health monitoring system
  • Baseline finite element modeling
  • Structural damage alarming
  • Data Analysis of GPS Monitoring System
  • Data Analysis of Wind Monitoring System
  • Data Analysis of Stress Monitoring System

7
Introduction
Objective of structural health monitoring
Determination of damage existence
Determination of damages geometric location
Quantification of damage severity
Prediction of remaining life of the structure
8
Structural health monitoring and condition
assessment system for Runyang Yangtse River
Bridge

150T?????????( 2005.7.20)
????????????(2005.8.7)
9
Structural damage alarming
Strategy and methodology
Multi-scale decomposition of structural system
Multi-scale decomposition of structural response
Wavelet packet energy spectrum of structural
response
10
Structural damage alarming method and system
based on the energy variations of structural
ambient vibration responses decomposed using
wavelet packet analysis
11
Thanks for your attention!
Write a Comment
User Comments (0)
About PowerShow.com