Three analogue method of track irregularity was introduced.
介绍了三种轨道不平顺的模拟方法。
Study on track irregularity is valuable for designing of vehicle and the track and scientific evaluation of the track status.
研究轨道不平顺，对于车辆、线路的设计以及轨道状态的科学评定都具有重要意义。
Track irregularity is one of the factors that make the increase of car body vibration, wheel-rail interaction force and wheel-rail noise.
轨道不平顺是引起车体振动加速度、轮轨作用力和轮轨噪声增大的主要因素之一。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
The transverse track irregularity is mostly treated as the exciting source of transverse vibration of train-bridge (or track) time-varying system at home and abroad.
国内外在列车-轨道时变系统横向振动计算中，大多采用轨道横向不平顺作为列车-桥梁(轨道)时变系统横向振动的激振源。
The catenary irregularity is researched from time-frequency analysis of the data detected based on existing research results of track irregularity and track spectrum.
在已有轨道不平顺和轨道谱研究成果的基础上，从接触网不平顺检测数据的时频分析方面对接触网不平顺进行了研究。
Maximum track irregularity is the evaluate index in emergency maintenance and standard deviation of section track irregularity is the evaluate index in track maintenance machine work.
轨道不平顺最大值用于紧急补修评价指标，区段的标准差用于大型养路机作业的评价指标。
Research purposes: By analyzing the effect on impact force between wheel and rail by track irregularity, technical evidences on limit of irregularity on rail welded joints are provided.
研究目的：为了研究轨道不平顺对轮轨作用力的影响，从而为钢轨焊接接头不平顺限值提供技术依据。
In order to realize efficient maintenance of track irregularity, it is necessary to establish the optimized maintenance plan model and adopt large scale machineries to maintain railway tracks.
为实现高效的轨道不平顺养护维修，建立最优养护维修计划模型和采用大型养路机械进行作业是十分重要的。
The influence of train running speed, wheel-rail friction coefficient, vehicle load, track geometric irregularity, partly load, gauge and the shape of wheel tread on derailment was emphasized.
论文重点分析了车辆运行速度、轮轨摩擦系数、车辆载重、轨道几何不平顺、偏载、轨距大小、车轮踏面形状等因素对脱轨的影响。
The track spectrum model is analyzed deeply to obtain appropriate catenary irregularity power spectrum model.
为了得到合适的接触网不平顺功率谱模型，对轨道谱模型进行了深入的分析。
The track geometry irregularity is a stable normal distribution and state-history random variable.
轨道几何不平顺为平稳的正态分布和各态历经的随机变量。
With modern transportation condition, track management must consider maximum and standard deviation of irregularity.
在现代运输条件下，要求轨道管理同时兼顾峰值和标准差。
Loading of trains is a complex issue. It involves many factors such as the axle weight, suspension system, traveling speed, track structure, geometric irregularity of lines and so on.
列车荷载是一个很复杂的问题，同时涉及列车轴重、悬挂体系、行车速度、轨道组成、线路平顺等等因素。
Loading of trains is a complex issue. It involves many factors such as the axle weight, suspension system, traveling speed, track structure, geometric irregularity of lines and so on.
列车荷载是一个很复杂的问题，同时涉及列车轴重、悬挂体系、行车速度、轨道组成、线路平顺等等因素。
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