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Date:2022-08-29

Indexed by:Journal Article

Date of Publication:2022-06-30

Journal:中南大学学报 自然科学版

Issue:6

Page Number:1791-1796

ISSN:1672-7207

Abstract:Taking the system that consists of a tether and a visco-elastic damper as research object, the vibration equation of tether and visco-elastic damper was set up considering tether sag effect. By means of Galerkin method, the partial differential equation was transformed into a set of ordinary ones. The maximum damping ratios and corresponding optimal damper coefficients were obtained after complex eigenvalue analysis. The effects of tether inclination and sag on its maximum damping ratio were researched. The results show that the corresponding optimal damper coefficients are different when different modes reach the maximum damping ratios. The mode order increases, and the corresponding optimal damper coefficient decreases. The maximum damping ratio of first in-plane mode is smaller than those of others due to the existence of tether sag. Inclination and sag of tether merely affect the maximum damping ratio of first in-plane mode.

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