How to calculate or select anti-vibration dampers?

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SUMMARY

This discussion focuses on the selection and calculation of anti-vibration dampers for medium voltage overhead lines, particularly in distribution systems. The user references IEE Std664-1993, IEEE 563-1978, and IEC 61897-1998, noting that these standards do not provide specific calculations for damper selection. Key formulas mentioned include the wind-induced vibration frequency (fs=0.0185*V/D) and the natural frequency (fn=1/(2*L)*√(To*g/Wc)), which are essential for determining the need for dampers to prevent resonance. The user seeks additional standards or references for comprehensive guidance on damper calculations and placements.

PREREQUISITES
  • Understanding of vibration theory and dynamics
  • Familiarity with overhead line design principles
  • Knowledge of relevant IEEE and IEC standards
  • Basic proficiency in mathematical calculations related to frequency and resonance
NEXT STEPS
  • Research the latest editions of IEEE and IEC standards related to anti-vibration dampers
  • Study the design and application of Stockbridge dampers and spiral dampers
  • Explore engineering handbooks that cover vibration control in overhead lines
  • Learn about advanced calculation methods for damper placement and effectiveness
USEFUL FOR

Electrical engineers, utility professionals, and designers involved in the installation and maintenance of overhead power lines, particularly those focused on vibration mitigation strategies.

qwerty69
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Hello everyone. I'm looking for some standard or some book that tells me how to select anti-vibration dampers for overhead lines, especially in distribution systems.

I was reviewing IEE Std664-1993, IEEE 563-1978 and IEC 61897-1998 but these standards only refer to laboratory tests and don't specify the calculation dampers.I would like to know how to calculate the number of dampers, how to select the type of damper (spiral, stockbridge, etc), the damper placement, etc

These dampers will be for a medium voltage overhead line, for long spans. At the moment I only know that the frequency of wind-induced vibration is calculated as: fs=0.0185*V/D; And the natural frequency is calculated: fn=1/(2*L)*√(To*g/Wc). Equating these two frequencies, I can calculate the span from which it is necessary to use damper to avoid resonance. But this is insufficient.

Is there any standard, bulletin or any bibliographic reference of how to do this calculation?

Thank you so much.
 
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