Research on monitoring and evaluation of metro vehicle bogie hunting
During the operation of metro vehicles,the occurrence of bogie hunting phenomenon has attracted widespread attention.In order to effectively monitor and scientifically evaluate the bogie hunting of metro,this article analyzes the spectral characteristics and effective values of the vibration acceleration of the vehicle body,bogie frame and axle box based on the actual line test data,and proposes a method for evaluating the hunting instability of metro vehicle bogies by referring to the domestic and international bogie hunting instability judgement standards,targeting at the specific situation of metro vehicles.At the same time,to expand the monitoring methods,the feasibility of the lateral vibration of the interior floor of the car body and the lateral vibration of the axle box as indirect measurement technologies for the hunting of metro vehicle bogies is analyzed,and the effective value correlation coefficients are 0.95 and 0.99 respectively.This evaluation method comprehensively uses a variety of monitoring methods and data indicators to provide a comprehensive and scientific basis for the monitoring and evaluation of metro vehicle bogie hunting.
metro vehiclebogie huntingmonitoring and evaluation
NETL
NSTL
万方数据
