Research on rapid detection method of tower bolt looseness based on vibration signal analysis at different measurement points

In this paper, it is difficult to realize the rapid measurement of the whole tower when laser long-distance non-contact measurement is used in the detection of bolt looseness of overhead transmission line towers. Firstly, the existing tower bolt loosening detection technology is briefly introduced, and the existing problems in realizing the rapid detection of the bolt looseness state of the whole tower are pointed out. Then, the vibration detection principle of bolt looseness is expounded, and the relationship between the measuring point and the bolt loosening position is obtained according to the analysis of the vibration data under different measurement points of a tower structure, and a method for rapid detection of bolt looseness of the tower is proposed, which lays a research foundation for the rapid detection and intelligent identification of the bolt connection state of the whole tower in the future.