基于fbg的鸭嘴型交叉臂的应变研究

Q4 Physics and Astronomy 光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144001.0058

徐树振 Xu Shuzhen, 田蕾 Tian Lei, 赵成均 Zhao Chengjun, 于亚红 Yu Yahong, 王. W. Tao, 李英娜 Li Yingna, 赵振刚 Zhao Zhengang, 李川 Li Chuan

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引用次数: 0

摘要

横臂在电力系统塔架中受力较大，由于线冰、波浪或其他物理因素的过重，容易造成横臂的损坏。建立了鸭嘴式横臂输电塔模型，在鸭嘴式横臂主梁的上、下表面用环氧树脂分别安装了4个光纤布拉格光栅。加载应力引起主梁的应变，引起光纤布拉格光栅的波长偏移。在鸭嘴式横臂两端加载和卸载时，实验表明，4个测量光栅的加载灵敏度分别为6pm/ kg、2pm/kg、3pm/kg、2pm/kg，重复性误差分别为0.7%FS、4.1%FS、1.9%FS、3.0%FS。

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Research of FBG-based duckbill-type cross arms by the strain

Cross arm withstands more force in the tower of power system than other components,it's easy to cause the damage of the cross arm by the excessive weight of line ice,wave,or other physical factors.A model of power transmission tower with a duckbill-type cross arm is developed,four fiber Bragg gratings are mounted on the upper surface and the lower surface of main beam of duckbill-type cross arm with epoxy resin.The strain of main beams are induced by the stress of loading,which causes the wavelength shift of fiber Bragg gratings.When loading and unloading on the ends of duckbill-type cross arm,the experiment indicates that load sensitivities of four measuring gratings are respectively 6pm/ kg,2pm/kg,3pm/kg,2pm/kg,the repeatability errors are 0.7%FS,4.1%FS,1.9%FS,3.0%FS.

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".