Coherency Matrix-based Proper Orthogonal Decomposition with Application to Wind Field Simulation

Proper Orthogonal Decomposition (POD) offers a powerful modal transformation tool for stochastic dynamics. In this paper, coherency matrix-based proper orthogonal decomposition (CPOD) is presented as an innovative form of the POD based on cross power spectral density matrices. By introducing a discretizing scheme, the CPOD-based spectral representation method is obtained for use in stochastic simulation. Some criteria are also proposed that allow the truncation order of CPOD to be conveniently determined. A numerical example to illustrate application of the proposed method for simulation of a wind velocity field is given.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16713664
• Authors:
  • Liang, Hu
  • Li, Li
  • Jian, Fan
  • Qinhan, Fang
• Publication Date: 2006-12

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 267-272
• Serial:
  • Earthquake Engineering and Engineering Vibration
  • Volume: 5
  • Issue Number: 2
  • Publisher: Springer
  • ISSN: 1671-3664
  • EISSN: 1993-503X
  • Serial URL: http://link.springer.com/journal/11803

Subject/Index Terms

• TRT Terms: Aerodynamic force; Damping (Physics); Dynamic structural analysis; Simulation; Stochastic processes; Vibration control; Wind resistant design
• Uncontrolled Terms: Proper orthogonal decomposition
• Subject Areas: Bridges and other structures; Data and Information Technology; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01046652
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 10 2007 1:25PM