Baseline-free damage identification of metallic sandwich panels with truss core based on vibration characteristics
文献类型：期刊论文
| 作者 | Lu LL(陆玲玲); Song HW(宋宏伟) ; Yuan W(袁武); Huang CG(黄晨光); Lu LL(路玲玲)
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| 刊名 | STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
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| 出版日期 | 2017 |
| 卷号 | 16期号:1页码:24-38 |
| 通讯作者邮箱 | songhw@imech.ac.cn |
| 关键词 | Sandwich panel with truss core damage identification gapped smoothing method Teager energy operator cell missing |
| ISSN号 | 1475-9217 |
| 产权排序 | [Song, Hongwei] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China |
| 通讯作者 | Song, HW (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. |
| 中文摘要 | A baseline-free damage identification method is proposed to identify damages in metallic sandwich panels with truss core in the article. The method is based on flexibility matrix and gapped smoothing method, with damage index defined DIm. The weight coefficient m is introduced to consider the effect of damages on both low-order modes and high-order modes. Numerical simulations and experiments are conducted to evaluate the present method. Besides, damage index DIm* is also defined by processing DIm with Teager energy operator, and comparisons between DIm and DIm* are also carried out. Results show that the proposed method is effective in detecting single damage and multiple damages of the same or different extent. The weight coefficient m plays a very important role in identification of multiple damages of different styles. When comparing with DIm*, it is found that the present index DIm is better at suppressing the singularity caused by contact nodes and detecting of multiple damages which contain small or slight damages. |
| 分类号 | 一类 |
| 类目[WOS] | Engineering, Multidisciplinary ; Instruments & Instrumentation |
| 研究领域[WOS] | Engineering ; Instruments & Instrumentation |
| 关键词[WOS] | Sandwich panel with truss core ; damage identification ; gapped smoothing method ; Teager energy operator ; cell missing |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1177/1475921716660055 |
| 语种 | 英语 |
| WOS记录号 | WOS:000391459300002 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59961]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Lu LL,Song HW,Yuan W,et al. Baseline-free damage identification of metallic sandwich panels with truss core based on vibration characteristics[J]. STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL,2017,16(1):24-38. |
| APA | 陆玲玲,宋宏伟,袁武,黄晨光,&路玲玲.(2017).Baseline-free damage identification of metallic sandwich panels with truss core based on vibration characteristics.STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL,16(1),24-38. |
| MLA | 陆玲玲,et al."Baseline-free damage identification of metallic sandwich panels with truss core based on vibration characteristics".STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL 16.1(2017):24-38. |
入库方式： OAI收割
来源：力学研究所
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