摆式列车受电弓倾摆机构运动学分析

对于动力分散的摆式电动车组,带受电弓的车体倾摆时,受电弓也要作相应的倾摆,才能保证受电弓与接触网的正常接触。文章根据受电弓技术要求,运用ADAMS软件,对基于四连杆机构的被动式受电弓倾摆机构进行了几何建模以及运动学分析。对倾摆机构尺寸参数进行了优化,使受电弓在车体倾摆过程中始终处于正常工作范围之内,以确保受电弓正常受流,为受电弓倾摆机构的设计开发提供了依据。     

新开发的受电弓弓头碳滑板安装法

从运用的观点来看,受电弓弓头碳基滑板的安装方法是非常重要的.碳滑板一般用带贴紧钢套包层的楔型榫制成,或用能夹紧整个碳滑板的金属装配架制作,用螺栓固定在受电弓弓头上.作者开发了其他3种新的安装方法.并阐述了日本在过去20多年里对碳基滑板材料所进行的开发,以及对所开发的安装方法进行试验室试验或现场试验的结果.     

700系电动车组用单臂型受电弓

阐述了700系电动车组用单臂型受电弓的研制过程。通过一系列的试验表明,单臂型受电弓具有结构简单、噪声低的优点。     

接触网受电弓动态实时视频监控系统的研究

本文对电气化铁道接触网受电弓动态实时视频监控系统的组成、主要功能和特点、关键技术、系统调试进行了介绍,并且阐述了其先进性与实用性,为电气化铁道提供了一种全新的科技手段。     

大风情况下接触网—受电弓故障浅析

本文对大同铁路分局近年来在大风下发生的弓网故障进行了详尽的分析,找出了发生故障的规律和原因,提出了一些改造方案和建议并得以实施,取得了良好效果,有一定的参考价值。     

弓网状态故障图像存储及分析系统

文章介绍了目前硬盘录像的技术和分类,阐述了“弓网状态动态检测系统”、“实时硬盘数字录像系统”和“离线分析系统”的功能、软硬件实现原理,三个相对独立的系统通过通讯构成了“弓网状态故障图像存储及分析系统”。实践证明该系统检测准确,使用方便,为铁路安全运输提供了有力保障。     

CANDY statement of methods

This paper presents a detailed overview of CANDY, a catenary–pantograph dynamic interaction software. Authors describe the main key points of the formulation, focusing on its time-integration scheme, the pantograph and contact models as well as the solution of the initial equilibrium problem. Nonetheless one of the most important features of CANDY is its moving finite element mesh, which enables accurate results without excessive computational cost. The validation of the model against the European Standard EN 50318 and some conclusions and comments about the results of the benchmark are also included.     

高速列车受电弓低速风洞试验技术

研究目的:为了研究高速列车受电弓头动态接触压力特性和整弓气动阻力,在中国航天空气动力技术研究院FD-09低速风洞进行试验。试验的目的是为受电弓架结构优化设计和实际使用提供科学依据。研究方法:试验方法是相对气流方向,受电弓位置分顺弓(闭口)和逆弓(开口),弓头高度分别有900 mm、1 300 mm和2 300 mm。试验风速范围从100 km/h到280 km/h,间隔为20 km/h。研究结果:试验结果表明,两种弓架气动阻力存在很大差异,因此,弓的气动力特性改进还有很大潜力。     

DSA250型受电弓控制策略

从电气控制原理和气动控制原理两方面介绍了KZ4A型交流传动电力机车用DSA250型受电弓的控制策略。     

Stochastic Monte Carlo simulations of the pantograph–catenary dynamic interaction to allow for uncertainties introduced during catenary installation

The simulation of the pantograph–catenary dynamic interaction is at present mainly based on deterministic approaches. However, any errors made during the catenary stringing process are sources of variability that can affect the dynamic performance of the system. In this paper, we analyse the influence of dropper length, dropper spacing and support height errors on the current collection quality by applying a classic Monte Carlo method to obtain the probability density functions of several output quantities. The effects of installation errors are also studied for a range of train speeds. Finally, the pre-sag that, on average, produces the best behaviour of the system is identified, allowing for the uncertainty in the catenary installation. The results obtained show the convenience to consider variability in pantograph–catenary dynamic simulations.