Dissertation > Excellent graduate degree dissertation topics show

Study on Wind-Induced Dynamic Response and Parameter Identification of Span Grid Roof Structures

Author: YuYanLei
Tutor: GaoWeiCheng
School: Harbin Institute of Technology
Course: Engineering Mechanics
Keywords: span lattice roof structure AR model wind velocity time series parameter identification natural excitation technique eigensystem realization algorithm
CLC: TU312.1
Type: Master's thesis
Year: 2006
Downloads: 140
Quote: 2
Read: Download Dissertation

Abstract


Since long-span lattice roof structures are generally with whole rigidity and it’s characteristic of light, flexible and low damping. With the development of economy and progress of science and technology, more and more long-span roofs have been built, which have individual characteristics in architecture and structure. During the long active service time, the structure maybe presents all kinds of structural damage because such reasons as tired accumulating, environment corroding and natural calamity function, etc. In order to find those damages early, nip in the bud, and lower the damage of accidents, it is great meaning full to research the technique of online damage monitoring of the long-span lattice roof structure.Wind load is an environmental load which acts on structure with long-term time, and is also one of the most important loads to control the structural design. But due to the complexity of long-span roofs in wind loads and structural style, its characteristics of wind-induces and identifications of parameters are the difficulty and focus in the research of wind engineering. If we want to monitor the damage of the span lattice roof structure, the wind-induced responses and identification of parameters become the important problems first of all, which also the key technique of the damage monitoring of the structure.The method of time domain parameter identification is superior to the method in frequency domain: the structural response is only needed to identify the parameters of the structure. For the long-span structure, artificial excitation has many abuses. So develop the method of time plane parameter identification has a great project meaning. Eigensystem realization algorithm (ERA) is a excellent time domain method. All the researched results prove the ERA method is steady and suitable for those structures: spacecraft、beam-plane structure、truss structure、frame、bridge, etc.On the basis of the consideration of the above, the major job of the article is to discuss how to identify the parameters of the long-span structure with the method of ERA under the action of the wind loads. Firstly, the simulation of the wind load is implemented. The article also points the difficult and key problems

Related Dissertations

  1. Research on Vector Control System of Induction Motor Based on DSP,TM346
  2. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  3. Research Implementation of Crack Detection Method Based on Its Acoustic Property,TP274
  4. Research on Navigation System of Agricultural Wheeled-Mobile Robot Using Multi-Information Fusion,TP242
  5. Multi-objective Optimal Operation for Reservoirs,TV697.1
  6. Research on Dynamic Modeling and Hydrodynamic Parameters Identification for AUV,TP242
  7. Simulation and Parameter Identification on Hydraulic Turbine Regulating System,TV734.1
  8. Study of Virtual Test Technology for Free Vibration of Ship Hulls,U661.44
  9. Investigation on the Method of Modal Identification under Operational Condition,TP391.41
  10. Parameter Identification of Pmsm in Variable-Frequency Air Conditioner,TM341
  11. Workspace Analysis and Parameter Identification of Space Robot,TP242
  12. Research on Application of Intelligence Control Strategies in DTC System,TP273.5
  13. Back Analysis of Concrete Temperature Field in Construction of Hydraulic Structure and Its Application,TV544
  14. The Identification to a Parameter of the Impulsive System and Optimal Algorithm,O232
  15. Parameter Identification of Hydro Turbine Governing System Based on Immune Algorithm,TV734
  16. The Simulated Research for Guidance System of Carrier Plane Taking Off & Landing,V249.1
  17. Arm Deflection by Airborne Radar and Its Detection as Separation from Carrier,TN972
  18. Modal Analysis Based on ODS and Stochastic Subspace Identification,O342
  19. Dynamic Test and Modal Analysis of Prestressed Reinforced Concrete Truss Beam,TU378.6
  20. Study on the Fuel Film Dynamic Effects and Air Fuel Ratio Control for Gasoline under Transient Conditions,TK417
  21. Parameter Identification and Simulation Research of the Turbo-generator Unit Speed Governor System Dynamic Model,TM311

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