中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 国家微重力实验室
A dispersion-based impact identification method: mechanical model and experimental verification

文献类型：期刊论文

作者Liu, Zishang2,3,4; Chen, Tianyu3,4; Zhang, Kun2,3,4; Wei, Yanpeng1,2; Guo, Yacong1,2; Wei, Bingchen2,3,4; Wei BC(魏炳忱); Zhang K(张坤); Wei YP(魏延鹏); Liu ZS(刘子尚)
刊名ACTA MECHANICA SINICA
出版日期2024-07-01
卷号40期号:7页码:12
关键词Structural impact Dispersion Structure vibration Waveguides Impact identification
ISSN号0567-7718
DOI10.1007/s10409-023-23510-x
通讯作者Zhang, Kun(zhangkun@imech.ac.cn) ; Wei, Bingchen(weibc@imech.ac.cn)
英文摘要External transient impact loads widely exist in the service environment of various engineering structures, and urgent engineering and military application requirements call for research on the theory and method of impact identification. This manuscript proposes a method to identify the impact event. By employing the dispersive property of wave propagation through the waveguides, a dispersion-based average power spectral density (PSD) curve for quantitative representation of the dispersion is established, and its evolution law is investigated to apply the identification of impact events. The critical parameters of the average PSD curve are obtained by analyzing the response of the structure from the perspective of mechanics. The effectiveness of this method is verified through the development of the triple-successive-impact split Hopkinson bar and the triple-successive-impact experiment. Through the method proposed in this manuscript, a kind of impact identification under multiple impact loads, which is not convenient to measure directly by the sensor, is realized, especially in the case of highly transient external impact. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)
WOS关键词CONCRETE ; DECELERATION ; DESIGN
资助项目National Natural Science Foundation of China[12272392] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040303] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022020]
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:001249125900001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/95787]  
专题力学研究所_国家微重力实验室
力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者Zhang, Kun; Wei, Bingchen; Wei BC(魏炳忱); Zhang K(张坤)
作者单位1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Coupling Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Key Lab Micrograv, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Zishang,Chen, Tianyu,Zhang, Kun,et al. A dispersion-based impact identification method: mechanical model and experimental verification[J]. ACTA MECHANICA SINICA,2024,40(7):12.
APA Liu, Zishang.,Chen, Tianyu.,Zhang, Kun.,Wei, Yanpeng.,Guo, Yacong.,...&Liu ZS.(2024).A dispersion-based impact identification method: mechanical model and experimental verification.ACTA MECHANICA SINICA,40(7),12.
MLA Liu, Zishang,et al."A dispersion-based impact identification method: mechanical model and experimental verification".ACTA MECHANICA SINICA 40.7(2024):12.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。