摘要
本文基于高速铁路运营过程中广泛存在的环境振动、噪声和无砟轨道振动伤损等问题,重点综述无砟轨道振动与相关问题的关联性以及无砟轨道振动频域研究方法,归纳各频域方法的原理和应用,对比分析各频域方法的优势和限制,阐明各频域方法的适用性。结果表明:(1)无砟轨道振动与环境振动、噪声和轨道振动伤损存在空间位置和频域范围两方面关联性;(2)无砟轨道振动对环境振动、噪声以及车轮多边形、钢轨波磨、扣件弹条断裂等振动伤损具有重要作用;(3)无砟轨道振动频域研究方法可大致归纳为基于周期轨道结构理论的频域方法和基于功率流理论的频域方法,两种方法均适用于无砟轨道中高频振动特性及相关问题的研究。
This paper focuses on the pervasive issues of environmental vibration,noise,and ballastless track vibration damage during the operation of high-speed railways.It primarily reviews the correlation between ballastless track vibrations and related issues,as well as the frequency domain research methods for ballastless track vibrations.The principles and applications of various frequency domain methods are summarized,and their advantages and limitations are comparatively analyzed to clarify their respective applicability.The results indicate that:(1)ballastless track vibrations are correlated with environmental vibrations,noise,and track vibration damage in terms of spatial location and frequency domain range.(2)ballastless track vibrations play a crucial role in influencing environmental vibrations,noise,and vibration-induced damages such as wheel polygonization,rail corrugation,and fastener clip fractures.(3)frequency domain research methods for ballastless track vibrations can be broadly categorized into those based on periodic track structure theory and those grounded in power flow theory.Both approaches are suitable for investigating the mid-to-high frequency vibration characteristics and related issues of ballastless tracks.
作者
付娜
王闵文
陈果
胡杨梅
杜宸卉
付文靖洋
FU Na;WANG Minwen;CHEN Guo;HU Yangmei;DU Chenhui;FU Wenjingyang(Chengdu Textile College,Chengdu 611731,China)
出处
《高速铁路技术》
2024年第5期30-34,77,共6页
High Speed Railway Technology
基金
2023年四川省大学生创新创业训练计划省级项目(S202311553002)
成都纺织高等专科学校人才资助项目(RCXM22002)
成都纺织高等专科学校科研项目重点项目(2022fzlkb02)。
关键词
高速铁路
无砟轨道
频域方法
功率流理论
EFEA法
high-speed railway
ballastless track
methods in frequency domain
power flow theory
energy finite element method(EFEA)
