ABSTRACT
The space truss structure is composed of elements and nodes. The node damage information cannot reflect the accurate element damage location, so it is necessary to use the element damage information to better determine the damage location. To solve this problem, wavelet transform and mode analysis methods are used to detect the damage of space truss structure. Based on curvature mode difference of structure as a space truss structure damage judge index of recognition, combined with the wavelet transform, single and more damage locations of space truss structure are determined, and the preliminary damage degree is determined. The results show that the method can not only be used to effectively determine the single and more damage locations but also can be used to preliminary determine the local damage degree of the structure. It has a certain guiding significance for practical engineering.
