山区双车道旅游公路交通特性分析

对山区双车道旅游公路的交通特性进行了较为深入的定量分析.基于交通量的分析结果,从旅游旺季节假日前后旅游公路交通量增长的角度将旅游公路分为A、B、C3类.速度数据的分析结果表明:山区双车道旅游公路的现状车速偏高;陡坡路段速度离散性较大.这不仅与货车比例等交通组成有关,而且与陡坡路段自身的道路特性也有较大的相关性.     

Long-term development of express coach services in Britain

Express coach services compete for longer distance market with car and rail, and largely cater for the leisure, tourism, and visiting friends and relatives. markets. Britain deregulated its express coach system in 1980, and it is now opportune to examine long-term impacts of that change. The initial impacts were reviewed by the authors in 1986 (Robbins & White, 1986) but such impacts do not necessarily match long-term outcomes. Monitoring of the British system has been conducted by examining service changes and data on ridership, together with financial performance of the main operator groups and technical press coverage. It can be shown that a dominant position has been retained by the major operator (National Express), with a continued decline in the role of smaller independent operators in the all-year-round daily network. However, new competition has emerged from other large groups (most notably Stagecoach ‘Megabus’ in 2003). The paper analyses the operating and marketing strategies of the new operator and contrasts these strategies with those adopted in the 1980s. Implications for the future development of the network in Britain are outlined.     

我国客车上部结构强度公告和出口认证试验的异同

阐述我国客车上部结构强度公告和出口认证试验的异同,为厂家开展上部结构强度设计和试验提供参考。     

客车空调系统对客车舒适度的影响分析

客车空调在满足驾乘人员舒适度的同时,其运行产生的噪声和振动也影响客车的舒适性。本文就此加以论述,并提出解决措施。     

7m长发动机后置独立后悬客车底盘

介绍一种全新的7m长发动机后置客车底盘及其主要配置、结构和性能参数等。该底盘采用独立悬架断开式驱动桥,解决了中型客车发动机后置困难、振动噪声大等问题。     

客车油路分析计算及研究

对某客车燃油系统的低压油路进行分析,建立进油管路系统模型,计算相关参数,并提出有关要求,为客车燃油管路设计提供参考。     

CATIAV5结构设计库的构建与使用

介绍CATIA Structure Design模块在客车车身骨架设计中的应用;结合客车行业的特点,利用批处理语言进行型材库的开发,并给出主要的程序代码。     

基于CAN总线的客车电气系统设计与ASR故障诊断

介绍＂动力CAN网＋网桥＋车身CAN网＂结构在中型客车上的设计应用,论述通过CAN报文分析查找ASR功能失效的原因。     

基于ANSYS/LS-DYNA的客车正面碰撞仿真分析研究

以某型大客车为例,基于ANSYS/LS-DYNA碰撞仿真软件,探讨碰撞仿真建模中的一些技术要点,建立大客车车身结构正面碰撞仿真有限元模型,并进行初始速度为30km/h的正面碰撞仿真研究。     

DD6129K30大型旅游客车的设计与开发

介绍了DD6129K30大型旅游客车的设计原则及主要技术参数,详细地阐述了车身设计、底盘设计、安全性设计过程及设计特点。