NUMERICAL FOURIER TRANSFORM IN RANDOM VIBRATION

THE STOCHASTIC STRUCTURAL DYNAMIC ANALYSIS FOR COMPLEX STRUCTURES DEMANDS AN ANALYTICAL TREATMENT INVOLVING NONSTATIONARY STOCHASTIC PROCESSES, UNDER NONSTATIONARY GUSTY WINDS OR EARTHQUAKE ACCELERATIONS. IT IS EMPHASIZED THAT THE FREQUENCY DOMAIN ANALYSIS OF SUCH NONSTATIONARY PROBLEMS WITH THE AID OF THE FOURIER TRANSFORM TECHNIQUE IS OF VITAL IMPORTANCE IN EVALUATING THE MEAN VALUE AND THE COVARIANCE FUNCTION OF THE RESPONSE, WHICH ARE CLOSELY RELATED TO STRUCTURAL SAFETY. AN EFFICIENT METHOD OF NUMERICAL SINGLE AND DOUBLE FOURIER TRANSFORM AND INVERSION WITH THE AID OF THE COMPEX FOURIER SERIES TECHNIQUE COUPLED WITH THE COOLEY/TUKEY ALGORITHM FOR EVALUATION OF THE FOURIER COEFFICIENTS IS PRESENTED. NUMERICAL EXAMPLES INDICATE THAT THE NUMERICAL INVERSION CAN BE PERFORMED WITHIN A REASONABLE TIME ON AN IBM 7094. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Supplemental Notes:
  • Vol 95, No EM3, PROC PAPER 6629, PP 731-746
• Authors:
  • Yang, Jinglin
  • Shinozuka, M
• Publication Date: 1969-6

Media Info

• Serial:
  • Journal of Engineering Mechanics
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Covariance; Dynamic loads; Earthquakes; Fourier transforms; Information processing; Mean (Statistics); Safety; Stochastic processes; Structural analysis; Structural mechanics; Wind
• Uncontrolled Terms: Dynamic response; Structural behavior
• Old TRIS Terms: Mean (Statistical)
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00209054
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 29 1994 12:00AM