Dissertation > Excellent graduate degree dissertation topics show

Wavelet analysis of complex structural damage identification

Author: LiuHongPo
Tutor: FanJin
School: Nanjing University of Technology and Engineering
Course: Structural Engineering
Keywords: Wavelet Analysis Damage Identification The wavelet transform coefficient residuals Environmental incentives Damage Alarming
CLC: TU312.3
Type: Master's thesis
Year: 2009
Downloads: 148
Quote: 2
Read: Download Dissertation

Abstract


Wavelet analysis is a time-frequency analysis method , is a powerful tool to deal with non-stationary signals . The damage recognition technology is a current hot research field of civil engineering , structural health monitoring core . Wavelet analysis as a tool to study the positioning of structural damage , injury severity identification and damage alarming . : Brief introduction to the currently used engineering structure damage identification method and wavelet transform method for damage identification ; future trends of the area of damage identification . Complex structural stiffness uneven wavelet transform coefficients residuals indicators , to Runyang model -based , modal displacement wavelet transform , wavelet transform coefficient residuals before and after damage from injury positioning relative degree of injury recognition the other aspects verify the effectiveness of the method . In the case of the wound area can not be obtained modal displacement information , the method can still accurately identify structural damage to the optimization of the sensor arrangement , to reduce the number of sensors is of great significance . Wavelet transform and multi-resolution analysis of damage alarming based on -line monitoring environment has a significant effect . Suddenly appears the damage causes the structural vibration response, the high - frequency component , the use of the wavelet transform to detect the high-frequency component of the signal , which can achieve the object of the injury warning . Environmental incentives under the nine-story shear structure acceleration signal wavelet transform , verify that the method can effectively identify specific moments of structure damage .

Related Dissertations

  1. On-line Monitoring of Tool Wear for Mass Production,TG71
  2. Leakage and arc fault protection circuit breaker research,TM561
  3. Based on morphological analysis of small current grounding fault identification technology and engineering,TM862
  4. Based on wavelet analysis method for fast simulation of fluid,TP391.41
  5. FPGA-based power system harmonic detection system research and design,TM935
  6. Wavelet Analysis Based Signal Denoising Research in MEMS Gyroscope,TN911.4
  7. Application Based on Mode Analysis and Signal Processing in Bridge Detection,TN911.7
  8. Study on Freeway Automatic Incident Detection Algorithm Based on Information Fusion,U491
  9. Open pit blasting vibration intensity physical analysis and time-frequency characteristics of,O382
  10. Short-term Power Load Forecasting Based on the Particle Swarm Optimization Algorithm,TM715
  11. Research on the Bridge Damage Detection Method Based on Modal Analysis and BP Neural Network,U441.4
  12. Heat Fault Diagnosis of Transmission Line Joints Based on Infrared Detection Technology,TP274.52
  13. Study on the Recognition and Classification System of Cervical Exfoliated Cells Based on Neural Network,TP391.41
  14. Nonlinear Study and Forecasting in Shanghai and Shenzhen 300 Stock Index Futures,F832.51
  15. Curvelet Transform Based on the Image Enhancement Algorithms,TP391.41
  16. Feature Extraction Methods Based on Signal Processing for Rolling Element Bearing Fault Diagnosis,TQ050.7
  17. Ultrasonic Transmission Method of Pile Testing Signal Processing Based on Wavelet Analysis,TU473.1
  18. Study on Effect of Stress Stiffening and Damage on Modal Parameters of Wind Turbine Blade,TK83
  19. The Diagnosis Method and Realization of Fault in Mid-Voltage Power Distribution,TM862
  20. Studies on Wavelet Characteristics of Runoff in the Middle and Lower Reaches of Jinsha River,P333.1
  21. ECG Automatic Analysis Based on Wavelet Transforms,TN911.6

CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural loads and structural capacity > Structural damage and accident analysis
© 2012 www.DissertationTopic.Net  Mobile