The Influence of Friction Coefficient on Bolt Looseness under Low Frequency Vibration via Finite Element Analysis

Abstract

Conductor galloping may lead to the looseness of bolted joints of power transmission towers. The friction coefficient plays a key role in the looseness performance of bolted joints. This paper analyzes the influence of friction coefficient on bolt looseness under low frequency vibration via finite element analysis. The results shows that the residual preload increases with the increase of friction coefficient.