| 基于光纤Bragg光栅的行车模型主梁挠度的测量 |
| |
| 引用本文： | 荆忠国,曹敏,黄代民,万舟,李川.基于光纤Bragg光栅的行车模型主梁挠度的测量[J].光学技术,2011,37(2):249-252. |
| |
| 作者姓名： | 荆忠国 曹敏 黄代民 万舟 李川 |
| |
| 作者单位： | 1. 昆明理工大学,信息工程与自动化学院,云南,昆明,650051
2. 云南电力试验研究院(集团)有限公司电力研究院,云南,昆明,650217 |
| |
| 摘 要： | 简易桥式起重机的力学结构是一种简支梁,研制了一种行车模型,主要包括工字梁及一个可吊挂重物的滑块.光纤Bragg光栅沿工字梁的轴向均匀粘贴于行车主梁的下表面,侧点分别位于离主梁的1/4、1/2和3/4等三个位置.在测量中,通过吊挂重物对主梁产生挠度,从而导致粘贴其下表面的光纤Bragg光栅产生波长移位.载荷试验表明,在主...
|
| 关 键 词： | 光纤Bragg光栅 行车模型 简支梁 荷载 挠度 |
Measurement of girder deflection of crane model based on fiber Bragg grating |
| |
| JING Zhongguo,CAO Min,HUANG Daimin,WAN Zhou,LI Chuan.Measurement of girder deflection of crane model based on fiber Bragg grating[J].Optical Technique,2011,37(2):249-252. |
| |
| Authors: | JING Zhongguo CAO Min HUANG Daimin WAN Zhou LI Chuan |
| |
| Institution: | 1(1.Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650051,Yunnan,China)(2.Electric Power Research Institute,Yunnan Provincial Electric Power Test & Research Institute(Group) Co,Ltd,Kunming 650217,Yunnan,China) |
| |
| Abstract: | Because the mechanical structure of simple bridge crane is a simply supported beam,a crane model is developed with an I-beam,a slider,and a hanging weight.Three fiber Bragg gratings are mounted on the bottom surface of main beam along the axis of I-beam,where the measuring points are located at the three positions of 1/4,1/2,and 3/4 length of main beam.In the measurement,the deflection of main beam is induced by hanging weights,which causes the wavelength shift of fiber Bragg grating mounted on the bottom surface of main beam.The Loading experiment indicates that the load sensitivities of three measuring gratings are respectively 259 pm/mm,440.5 pm/mm,and 270.5 pm/mm.This method can not only offer an on-line monitor for crane,but also avoids artificial errors. |
| |
| Keywords: | fiber Bragg grating crane model simply supported beam load deflection |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
