A new crack diagnosis method on box structure based on empirical mode decomposition

摘要：

　　A new crack diagnosis method on a two-story box structure based on empirical mode decomposition is proposed in this paper.According to the simulation analysis, it turns out that the model of the structure can be barely influenced by the crack.Response signals of swept sine vibration test are empirical mode decomposed into a set of intrinsic mode functions, from which tag vectors are constructed, then tag angles are defined to dignose the failure of the board.Combined with the load direction to the structure, the position and direction of the crack can be deduced using tag angles.

关键词： crack diagnosis box structure empirical mode decomposition tag angle

作者: Yicun Xie Shichao Fan Yanjing Yang

作者单位: Beijing Institute of Spacecraft Environment Engineering, Beijing, China

会议类型: 国际会议

会议名称: the International Conference Vibroengineering-2014

会议地点: 贵阳

会议语种:英文

页码: 125-130

在线出版日期: 2014-11-07（万方平台首次上网日期，不代表论文的发表时间）