华东交通大学学报Issue(1)：1-6,6.
轨道不平顺波长对桥上CRTS II型板式轨道振动特性的影响
Impacts of Track Irregularity Wavelength on Vibration Characteristics of Elevated CRTS II Slab Track
摘要
Abstract
Different wavelengths and altitudes of track irregularities will produce different impacts on vehicle-track coupled system. For passenger-dedicated line with high-speed running,besides strict control of track irregularity altitudes the management of track irregularity wavelengths should be considered since the control of track irregularities wavelength is much more complicated. By using vehicle-track-bridge finite element model, this study probes into the impact of track irregularity wavelengths on elevated structure of high-speed line. The results showe that:1 Not only irregularity altitude but also irregularity wavelengths produce impact on wheel-rail interaction forces. 2 The impact of short wavelength track irregularities on wheel-rail interaction forces, steel rail vibration acceleration,track slab acceleration and viaduct acceleration are prominent. Reducing short wavelength track irregularities component is effective for decreasing wheel-rail interaction forces. 3 The short wavelength component of track irregularities has prominent impact on the level of steel rail vibration,track slab vibration and viaduct vibration.关键词
轨道不平顺/轨道不平顺波长/车辆-轨道-桥梁耦合振动有限元模型/动力响应Key words
track irregularity/track irregularity wavelength/vehicle-track-bridge coupled vibration finite ele-ment model/dynamic response分类
交通工程引用本文复制引用
房建,雷晓燕,练松良..轨道不平顺波长对桥上CRTS II型板式轨道振动特性的影响[J].华东交通大学学报,2014,(1):1-6,6.基金项目
国家自然科学基金项目（U1134107）；国家自然科学基金项目（50878158）；江西省科技厅项目（GJJ13318）；江西省自然科学基金 （）
