抄録
In this study, the aerodynamic coefficients of four-bundled conductor models, where pennant shape of ice and snow accretion was simulated, were obtained by wind tunnel tests in order to investigate the effects of initial angle of ice and snow accretion growth on the aerodynamic force. Surface pressure on conductor models was also measured to obtain the individual aerodynamic coefficients of each subconductor. The measurement results show that the aerodynamic coefficients vary depending on the initial angle of ice and snow accretion. The effects of the initial angle of ice and snow accretion on conductor galloping were quantitatively evaluated based on Den Hartog criteria. The result shows that the effects should be considered when evaluating galloping response of four-bundled conductor.
