机车弹簧在役检测研究  

Research on the inservice testing of locomotive springs

作　　者：郭永良 段怡雄 鲁传高 毛斌 刘松文 GUO Yongliang;DUAN Yixiong;LU Chuangao;MAO Bin;LIU Songwen(CRRC Zhuzhou Locomotive Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《轨道交通材料》2025年第2期60-64,共5页Materials for Rail Transportation System

摘　　要：为研究机车弹簧在役检测技术方法的可行性,先从理论上梳理了磁粉、渗透、涡流及超声导波等方法,根据弹簧在役检测的特点最终确定了涡流和超声导波两种技术方法的理论可行性。通过仿真研究和弹簧实物试块的试验研究,最终确定了两种方法的实际可行性。通过仿真研究和实物研究确定在不拆解弹簧的情况下,超声导波检测技术可以有效检测面积占横截面面积5%的平面缺陷;弹簧在拆解不去漆的情况下,涡流检测技术可以检测出0.3mm深的人工缺陷。In order to probe into the feasibility of in-service testing techniques for locomotive springs,magnetic particle,penetration,eddy current and ultrasonic guided wave testing methods are firstly sorted out theoretically,and the theoretical feasibility of eddy current and ultrasonic guided wave testing methods is finally determined based on the characteristics of in-service spring testing.The practical feasibility of the two methods is confirmed by simulation study and experimental study of the spring test pieces.Through simulation and real object research,it is determined that the ultrasonic guided wave detection method can effectively detect the plane defects with an area of 5%of the crosssectional area without disassembling the spring.When the spring is disassembled without a depainting process,eddy current testing can detect artificial defects with a depth of 0.3 mm.

关 键 词：机车弹簧 在役检测 超声导波 涡流 仿真 

分 类 号：U260.331.7[机械工程—车辆工程] U260.7[交通运输工程—载运工具运用工程]