Wind-Induced Vibration Control for Transmission System Using Steel-Lead Viscoelastic Damper

Abstract:

For wind-induced vibration of transmission tower-line system, the vibration reduction effects are studied based on a new type steel-lead viscoelastic damper. Firstly, Calculate damped coefficient basing on the test of the new type steel-lead viscoelastic damper under slow reversed cyclic horizontal loads. Then, a finite element model of transmission tower was built by using ANSYS. And the time history samples of random fluctuating wind load is obtained with the linear auto-regressive filter law principle. Next, three installation plans of dampers on tower were proposed based on analyzing the working principle damper and the structure of tower. Finally, a wind-induced vibration transient response simulation was performed respectively for the different plans. The influences of SLVD dampers on the displacement and on the acceleration of the controlled nodes were compared. SLVD damper can reduce the top node displacement by about 37.89%. The results indicated that the SLVD damper can suppress the wind-induced vibration. And through comparison, the optimal installation scheme of SLVD dampers is obtained.

• Periodical: Applied Mechanics and Materials (Volume 597)
• Pages: 376-379
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.597.376
• Online since: July 2014
• Authors: Feng Lin Gan, Hai Long Jiang*
• Keywords: Control, Finite Element Method (FEM), Steel-Lead Viscoelastic Damper, transmission tower, Wind-Induced Vibration

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