Dissertation > Excellent graduate degree dissertation topics show

Bouc-Wen model nonlinear structural parameter identification

Author: ZuoZhiHao
Tutor: FanJin；ZuoXiaoBao
School: Nanjing University of Technology and Engineering
Course: Structural Engineering
Keywords: Nonlinear Structures Bouc-Wen Model Parametric Identification Hilbert Transform Root-Mean-Square Error On-Line Identification Health Monitoring Structural Control
CLC: TU311.3
Type: Master's thesis
Year: 2005
Downloads: 319
Quote: 4
Read: Download Dissertation

Abstract


In the field of structural control and health monitoring for nonlinear structures, the parametric identification of nonlinear structures is very important. Based on the Bouc-Wen model, the parametric identifications of nonlinear structures are completed in this paper.The parameter analysis method of Bouc-Wen model is introduced, and the effects of the parameters in the model on the shape of the hysteresis loop are studied using the numerical simulations. The nonlinearity detection principle through Hilbert transform is illustrated, and the root-mean-square error between the amplitude curve of the structural frequency response function and its Hilbert transform is presented as the relative index to quantify the nonlinearity of structures. The on-line identifications of nonlinear structures with Bouc-Wen model and structures with certain abrupt changes in the structural parameters are studied based on the new on-line identification algorithm for nonlinear structures.Results show that Bouc-Wen model can simulate the typical nonlinear hysteresis characteristics in engineering. Hilbert transform can detect the nonlinearity of structures, and the presented index for structural relative nonlinearity can approximately indicate the excitation level when structures occur certain nonlinearity, and reflect the damage of structures. The on-line identification algorithm can identify the nonlinear restoring force and the changes in structural parameters in real time.

Related Dissertations

  1. The structural characteristics of the gold deposits Huachanggou controlled gold,P618.51
  2. PVA fiber concrete damage evolution acoustic emission monitoring and destructive mechanism,TU528.572
  3. Real-Time Substructure Testing Method and Its Application,TB535
  4. Study on the Preparation, Structure Controlling and Application of Nanosized Zirconia,TB383.1
  5. Simulated Research on MR Intelligent Semi-active Control of Flow-induced Vibration of Hydraulic Arch Sluice,TV663.2
  6. Stochastic optimal control study of the seismic response of tall building structures,TU973.2
  7. Study on Seismic Response Control of Tall Buildings Using the System of Controllable Tuned Liquid Damper,TU352.1
  8. Dynamics and Structural Control of Megaframe with Suspension Systems,TU973.2
  9. Theoretical Research on Base Isolation and Structural Control Considering Soil-Structure Dynamic Interaction,TU352.12
  10. Research on Robust Stabilization and Stabilization Design of Nonlinear Systems Based on Dissipative System Theory,O231.2
  11. Chemical Manipulation over Coordination Polymers and Chiral Symmetry Breaking,O631.3
  12. Crystallization of Micro-Structured Zn and Nb Transitional Metal Oxides,TB383.1
  13. The Yimen Lion Rock copper deposit geology and geochemistry , and prediction of concealed ore,P618.41
  14. Optimization of Spatial Allocation and Stand Structure Regulation of Protection Forests in Different Scales,S727.2
  15. Rules of Ore-controlling Structures and Forecast of Orebody Location of Dayin’gezhuang Gold Deposit in Jiaodong Region,P618.51
  16. Investigation on Wind-induced Vibration Control of High-rise TV Tower,TU311.3
  17. Researching Structures’ Passive Control Based on Shape Memory Alloy,TU352.1
  18. Study on Seismic Performance of Innovative Steel Coupling Beams with Control Device,TU391
  19. The Feature of Cenozoic Structure and Its Control on the Petroleum Accumulation in Western Qaidam Basin,P618.13
  20. Research on Mode of Structural Control about Groundwater Pour-in Mechanism in Xiadian Gold Deposits of Shandong Province,TD742

CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Mechanics > Structural Dynamics
© 2012 www.DissertationTopic.Net  Mobile