噪声与振动控制2017，Vol.37Issue(4)：85-89,154,6.DOI:10.3969/j.issn.1006-1355.2017.04.017
地铁钢轨波磨对轨道结构振动及减振特性影响
Influence of Metro Rail Corrugation on Track System's Vibration and Mitigation Characteristics
摘要
Abstract
Rail corrugation characteristics of 3 types of track structures of the selected metro line including fix-dual short sleepers, Vanguard fasteners and steel spring floating slabs are investigated. The vibration experiments are carried out to analyze the influence of rail corrugation on track system's vibration and mitigation characteristics. The results show that the corrugation on the inner rail is much more obvious and deeper than that on the outer rail. The main frequency mostly depends on the wavelengths of the corrugation. In the range of 4 Hz-200 Hz, the vibration damping track with short-pitch corrugation still have a good vibration damping performance. The vibration mitigating effect at high frequencies is reduced obviously due to the short-pitch corrugation on the rail of the Vanguard fastener track. There's no obvious influence of long-pitch corrugation of steel spring floating slab track on vibration mitigation. But the greater amplitude of the corrugation on the steel spring floating slab track may cause increase of rail vibration.关键词
振动与波/地铁轨道结构/波磨/减振效果Key words
vibration and wave/metro track system/rail corrugation/vibration mitigating effect分类
交通工程引用本文复制引用
仲莹涵,关庆华,温泽峰,李伟,陶功权,张晴..地铁钢轨波磨对轨道结构振动及减振特性影响[J].噪声与振动控制,2017,37(4):85-89,154,6.基金项目
国家科技支撑计划资助项目(2015BAG12B01-16) （2015BAG12B01-16）
国家自然科学基金资助项目(51305360) （51305360）
中央高校基本科研业务费专项资金资助项目(2682016CX126) （2682016CX126）
