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laomo001ľ³æ (ÖøÃûдÊÖ)
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Zhang Q, Wang Y, Sun Y, et al. Hilbert-Huang Transform Based Method for Monitoring the Crack of Concrete Arch by Using FBG Sensors[J]. Optik - International Journal for Light and Electron Optics, 2015, 127£¨6£©£º3417-3422¡£ лл£¡£¡£¡ |
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liouzhan654
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laomo001: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-03-21 21:44:08
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laomo001: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-03-21 21:44:08
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Hilbert-Huang Transform based method for monitoring the crack of concrete arch by using FBG sensors ×÷Õß:Zhang, QH (Zhang, Qinghua)[ 1,2 ] ; Wang, Y (Wang, Yuan)[ 1 ] ; Sun, YY (Sun, Yangyang)[ 1 ] ; Gao, L (Gao, Lei)[ 1 ] ; Yue, Y (Yue, Yin)[ 1 ] OPTIK ¾í: 127 ÆÚ: 6 Ò³: 3417-3422 DOI: 10.1016/j.ijleo.2015.12.087 ³ö°æÄê: 2016 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª Little cracks in civil engineering structures may be the first indication of a serious defect. Crack monitoring of concrete is crucial for the integrity of civil engineering structures. In this paper, fiber Bragg grating (FBG) sensors were used for monitoring the crack of two CFRP concrete composite arches in MTS loading and unloading test. During the test, time series of strain data can be obtained by different FBG sensors. At the same time, initial cracking time is observed and recorded by the experimenters. After the test, a method based on Hilbert-Huang Transform (HHT) is used for determining the cracking time, which take the advantage of Empirical Mode Decomposition (EMD). The test results indicate that the HHT based method can be used to determined the cracking time when using different pasting method, even if the fix location of FBG sensors is not very accurate, and the 2nd IMF is better than other IMFs in crack monitoring, which is selected as a criterion in crack monitoring. (C) 2016 Elsevier GmbH. All rights reserved. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:Crack monitoring; Fiber Bragg grating; Concrete arch; Hilbert -Huang Transform; Empirical mode decomposition KeyWords Plus:BRAGG GRATING SENSORS; FIBER; SPECTRUM ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Zhang, QH (ͨѶ×÷Õß) ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ PLA Univ Sci & Tech, Coll Def Engn, Nanjing 210007, Peoples R China. µØÖ·: ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ [ 1 ] PLA Univ Sci & Tech, Coll Def Engn, Nanjing 210007, Peoples R China [ 2 ] State Key Lab Geog Informat Engn, Xian 710054, Peoples R China µç×ÓÓʼþµØÖ·:geodesy@aliyun.com ³ö°æÉÌ ELSEVIER GMBH, URBAN & FISCHER VERLAG, OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY Àà±ð / ·ÖÀà Ñо¿·½Ïò:Optics Web of Science Àà±ð:Optics ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000369456500044 ISSN: 0030-4026 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: DC8FY Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 19 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |

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