Wind and Structures

  • 제8권2호
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  • Pages.79-88
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  • 2005
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Unifying calculation of vortex-induced vibrations of overhead conductors

  • 투고 : 2003.12.18
  • 심사 : 2004.06.22
  • 발행 : 2005.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper deals with a unified way for calculating vortex-induced vibrations (Aeolian vibrations in transmission line parlance) of undamped single overhead conductors. The main objective of the paper is to identify reduced parameters which would unify the predicted vibration response to the largest possible extent. This is actually done by means of a simple mathematical transformation resulting, for a given terrain (associated to a given wind turbulence intensity), into a single, unified response curve that is applicable to any single multi-layered aluminium conductor. In order to further validate the above process, the predicted, unified response curve is compared with measured response curves drawn from tests run on a full-scale test line using several aluminium-conductor-steel-reinforced (ACSR), all-alloy-aluminium-conductor (AAAC) and aluminium-conductor-alloy-reinforced (ACAR) conductors strung at different tensions. On account of the expected scatter in the results from such field tests, the agreement is shown to be good. The final results are expressed by means of only four different curves pertaining to four different terrain characteristics. These curves may then be used to assess the vibration response of any undamped single, multi-layer aluminium conductor of any diameter, strung at any practical tension.

키워드

참고문헌

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  11. Leblond, A. and Hardy, C. (2003), "A unified way for presenting aeolian vibration response of single undamped overhead conductors", Proceedings of the Fifth International Symposium on Cable Dynamics, Santa Margherita Ligure, Italy, September, 263-270.
  12. Noiseux, D.U., Houle, S. and Beauchemin, R. (1988), "Transformation of wind tunnel data on aeolian vibrations for application to random conductor vibrations in a turbulent wind", IEEE Transactions on Power Delivery, 3(1).
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피인용 문헌

  1. Vortex induced vibration analysis of a cylinder mounted on a flexible rod vol.29, pp.6, 2019, https://doi.org/10.12989/was.2019.29.6.441