空车技术计划方案计算机辅助编制方法研究

首先分析现有调度工作中有关空车技术计划方案存在的一些不足,进而描述了计算机辅助编制空车技术计划方案的方法,重点讨论了班工作计划中计算机辅助优化排空和配装方案编制的方法,详细阐述了计算机辅助优化排空和配装方案的过程.     

CAN总线在车辆空气制动试风系统中的应用研究

随着铁路信息化、数字化的发展,铁路运营和检修设备的安全性和实时性的要求越来越高.车辆单车试风系统也正在经历这一过程.基于CAN总线的货车单车试风系统的设计,包括CAN总线的简介,系统的整体设计原理框图,上位机和下位CAN节点硬件设计与实现,下位CAN节点控制系统的软件设计与流程,上位工控计算机管理信息系统的构成和功能,在现场的应用情况.     

基于可视化客车调度管理信息系统的设计与实现

为实现客车调度管理的科学化和信息化,在规范和统一客车技术管理的相关数据资源,建立铁路客车技术信息库的基础上,本系统以电子动态编组板为基本界面,将调度室与各个车间的业务有机联系起来,在提供便捷的动态鳊组工具的同时,实现相关信息资源的综合运用和共享,有效提高信息查询、分析处理的效率和准确性.     

Shared versus private mobility: Modeling public interest in autonomous vehicles accounting for latent attitudes

Emerging autonomous vehicles (AVs) and shared mobility systems per se will transform urban passenger transportation. Coupled together, shared AVs (SAVs) can facilitate widespread use of shared mobility services by providing flexible public travel modes comparable to private AV. Hence, it may be conjectured that future urban mobility is likely an on-demand service and AV private ownership is unappealing. Nonetheless, it is still unclear what observable and latent factors will drive public interest in (S)AVs, the answer to which will have important implications on transportation system performance. This paper aims to jointly model public interest in private AVs and multiple SAV configurations (carsharing, ridesourcing, ridesharing, and access/egress mode) in daily and commute travels with explicit treatment of the correlations across the (S)AV types. To this end, multivariate ordered outcome models with latent variables are employed, whereby latent attitudes and preferences describing traveler safety concern about AV, green travel pattern, and mobility-on-demand savviness are accounted for using structural and measurement equations. Drawing from a stated preference survey in the State of Washington, important insights are gained into the potential user groups based on the socio-economic, built environment, and daily/commute travel behavior attributes. Key policies are also offered to promote public interest in (S)AVs by scrutinizing the marginal effects of the latent variables.     

四连杆机构在铸钢三大件式转向架上的应用

论述了四连杆转向架四连杆机构的作用原理和具体结构,以及四连杆转向架的动力学性能和运用检修情况,并就该机构的改进和在我国的应用提出了建议。     

地铁车辆限界计算

介绍地铁车辆限界的计算过程和计算工况,以及计算中要注意的几个问题。     

25T型高级软卧车空调温度控制探讨

分析了目前25T型高级软卧车空调温度控制存在的问题,找出了解决办法,并提出了今后的研究方向。     

货车车体线性尺寸的选择

介绍了在限界限制、现有工艺装备条件下选择车体最佳尺寸的简化计算公式。     

25型客车的模块化研制

介绍了目前25型客车采用的模块化设计技术,并提出了25型客车模块化的研制方向。     

俄罗斯与前苏联铁路客车综述

阐述了俄罗斯与前苏联铁路客车的发展过程,介绍了各个时期客车的保有量、本国制造量与进口量,以及批量生产的客车及其转向架的主要技术参数,并简要介绍了俄罗斯铁路动车组近况.