WIND INDUCED VIBRATION IN LIGHT POLES

MODAL ANALYSIS IS APPLIED TO OBTAIN A SOLUTION TO THE DIFFERENTIAL EQUATIONS OF MOTION OF A VIBRATING CANTILEVERED LIGHT POLE WHEN SUBJECTED TO WIND FORCES. USE IS MADE OF A HIGH SPEED COMPUTER IN THE SOLUTION PROCESSES. THE EXCITATION FORCES ARE THOSE CAUSED BY VORTICES WHICH ARE SHED ALTERNATELY ALONG THE CYLINDRICAL PORTION OF THE VERTICAL SUPPORT POLE. STRUCTURAL IDEALIZATION IS ACCOMPLISHED BY LUMPING THE CONTINUUM INTO DISCRETE MASSES INTERCONNECTED BY WEIGHTLESS ELASTIC SPRINGS. TWO TYPICAL LIGHT POLES ARE ANALYZED FOR ILLUSTRATIVE PURPOSES. /AUTHOR/

• Supplemental Notes:
  • Vol 96, No ST6, PROC PAPER 7383, PP 1221-1235
• Authors:
  • Ross, H E
  • Edwards, T C
• Publication Date: 1970-6

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aerodynamic force; Differential equations; Information processing; Light; Mathematical analysis; Motion; Poles (Supports); Street lighting; Vibration; Wind
• Uncontrolled Terms: Wind load
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00220960
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 27 1970 12:00AM