Damage detection of sandwich panels with truss core based on time domain dynamic responses
文献类型：期刊论文
| 作者 | Lu LL(路玲玲) ; Le J(乐杰); Song HW(宋宏伟); Wang YB(王亚博); Huang CG(黄晨光)
|
| 刊名 | COMPOSITE STRUCTURES
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 211页码:443-454 |
| ISSN号 | 0263-8223 |
| 关键词 | Sandwich panel with truss core Damage identification Dimensionless time domain dynamic response Teager energy operator Poincare map |
| DOI | 10.1016/j.compstruct.2018.12.052 |
| 英文摘要 | A damage identification method, based on structural time domain dynamic responses and Teager energy operator, is presented for sandwich panels with truss core in the paper. The dimensionless structural dynamic responses, i.e., dimensionless velocity and displacement, are combined to construct damage index. Application of the method on sandwich panels in the cases of single damage and multiple damages with different extents are conducted. Effects of some factors on the method are discussed, including excitation location, excitation frequency, boundary condition, number of points N in Poincare maps. Numerical and experimental results show that the proposed method is effective in detecting both single damage and multiple damages with different extents. Excitation location plays a very important role in affecting the effectiveness of the method. Excitation frequency has little effect on the method, and there is a great selection space of excitation frequencies. Increasing the boundary condition constraint is beneficial for damage identification. |
| 分类号 | 二类/Q1 |
| WOS关键词 | IDENTIFICATION ; VIBRATIONS |
| WOS研究方向 | Materials Science, Composites |
| 语种 | 英语 |
| WOS记录号 | WOS:000457709800038 |
| 资助机构 | National Natural Science Foundation of China [11472276, 11332011, 11502268] ; National Defense Basic Scientific Research Program of China [JCKY2016130B009] |
| 其他责任者 | Song, HW |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78246]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Heilongjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu LL,Le J,Song HW,et al. Damage detection of sandwich panels with truss core based on time domain dynamic responses[J]. COMPOSITE STRUCTURES,2019,211:443-454. |
| APA | 路玲玲,乐杰,宋宏伟,王亚博,&黄晨光.(2019).Damage detection of sandwich panels with truss core based on time domain dynamic responses.COMPOSITE STRUCTURES,211,443-454. |
| MLA | 路玲玲,et al."Damage detection of sandwich panels with truss core based on time domain dynamic responses".COMPOSITE STRUCTURES 211(2019):443-454. |
入库方式： OAI收割
来源：力学研究所
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