Damage Identification of the Wing Rib Plate Beam Based on the Curvature Mode Change Rate

This paper takes the wing rib plate beam structure as an object, and its structural response data and the mode shapes are obtained through Abaqus simulation and the NExT-ERA, respectively. The curvature mode change rate, based on curvature mode, is treat as the damage indicator for damage identification of the wing rib plate beam structure, which is firstly identified by the wing rib plate beam without holes as an object, and then by the rib plate beam with holes. The results show that the curvature mode change rate has a good effect on recognizing the damage of the complex wing rib beam structure, which helps to build the wing structural health monitoring system.