基于FBG的道岔尖轨垂向加速度变化规律  

Vertical Acceleration Variation of Point Rail Based on FBG

作　　者：王海东 王洪涛 张强 季天剑[3] Wang Haidong;Wang Hongtao;Zhang Qiang;Ji Tianjian(Anhui Lutong Railway Co.,Ltd,Hefei,Anhui 230001;Anhui Comprehensive transportation research institute Co.,Ltd,Hefei,Anhui 230001;Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 210016)

机构地区：[1]安徽庐铜铁路有限公司,安徽合肥230001 [2]安徽省综合交通研究院股份有限公司,安徽合肥230001 [3]南京航空航天大学土木工程系,江苏南京210016

出　　处：《江西建材》2018年第12期13-15,共3页Jiangxi Building Materials

摘　　要：为了研究尖轨垂向振动加速度变化,采用光纤光栅加速度传感器进行加速度检测。通过对尖轨垂向振动加速度响应分析、机车行驶方向和速度对垂向加速度的影响分析,发现利用FBG的加速度传感器检测尖轨垂向振动加速度的试验方案是可行的,可以用于铁路道岔的振动分析;列车过岔方向对道岔尖轨的振动影响较大,在机车侧顺向和侧逆向过岔时,垂向加速度变化规律不同;当机车过岔速度较低时,侧逆向过岔对尖轨尖端的振动影响较大。In order to study the change of vertical vibration acceleration of point rail, fiber Bragg grating acceleration sensor is used to detect acceleration. Through the analysis of the vertical vibration acceleration response of the point rail and the influence of the locomotive running direction and speed on the vertical acceleration, it is found that the test scheme of using FBG acceleration sensor to detect the vertical vibration acceleration of the point rail is feasible and can be used for the vibration analysis of the railway turnout; the effect of the direction of the locomotive passing the turnout on vibration of the point rail is strong. When the locomotive crosses the turnout by forward and backward, the vertical acceleration of point rail changes differently; when the locomotive crosses the turnout at a lower speed, the side backward crossing has a greater impact on the vibration of the point rail.

关 键 词：道岔 光纤光栅 加速度传感器 垂向振动加速度 

分 类 号：U270.11[机械工程—车辆工程]