Deformation control and vibration reduction analysis of rubber floating slab track
CHEN Peng
XIN Tao
Abstract：Deformation limits should be taken into account during the optimization design of vibration reduction effect of track structures.Taking the rubber floating slab track as a research object,modal analysis and harmonic response analysis method are used to study the track vibration characteristics.Considering the rail deformation limit,the optimal stiffness of pad under track is proposed.Based on a metro vehicle-rubber floating slab track-fundamental spatial coupling system dynamic analysis model,the dynamic responses of track and foundation under the optimal stiffness are calculated,and the vibration reduction effect is evaluated.The results show that the rubber floating slab track has good vibration reduction performance.The natural frequency of track is 18.7 Hz at a rail deformation limit of 4 mm.Within the frequency range of 1～80 Hz,the comprehensive vibration reduction effect of the floating slab track is 10.4 dB.The research results will be used in practical engineering and provide some references for the selection and optimization design of similar vibration reduction track structures.
Keywords：floating trackrail deformationvibration reduction effectvibration characteristicsdynamic response
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 34-39 )