摆式车辆液压缸载荷的确定

详细介绍了摆式车辆液压倾摆系统的机构动作、车体复原力矩与液压缸脉冲加载时间的确定和液压缸载荷的计算。     

货车转向架的双线性悬挂

介绍了俄罗斯和乌克兰铁路25 t轴重货车转向架采用的双线性悬挂,以及为防止不良响应所采取的措施.     

Dynamics of railway wagons subjected to braking torques on defective tracks

It is well known that track defects cause profound effects to the dynamics of railway wagons; normally such problems are examined for cases of wagons running at a constant speed. Brake/traction torques affect the speed profile due to the wheel–rail contact characteristics but most of the wagon–track interaction models do not explicitly consider them in simulation. The authors have recently published a model for the dynamics of wagons subject to braking/traction torques on a perfect track by explicitly considering the pitch degree of freedom for wheelsets. The model is extended for cases of lateral and vertical track geometry defects and worn railhead and wheel profiles. This paper presents the results of the analyses carried out using the model extended to the dynamics of wagons containing less ideal wheel profiles running on tracks with geometry defects and worn rails.     

To fully automate or not? Investigating demands and willingness to pay for autonomous vehicles based on automation levels

We review the literature on the motivators of consumers’ purchasing decisions regarding autonomous vehicles (AVs), focusing on environmental awareness, vehicle types, concerns about accidents, and merits. The willingness to buy (WTB) and willingness to pay (WTP) for AVs have been extensively studied. However, it is imperative to broaden the outlook and consolidate the existing knowledge base. Although the WTB and WTP for AVs have been studied, automation-level preferences have been underresearched. Based on more than 150,000 observations, we construct a choice model and calculate the WTP for each level of automation. Our results show that there is a disparity between people's WTB and WTP according to the automation level. In particular, we find that the coefficients regarding FAVs’ benefits and accidents significantly exceed those related to environmental concerns. Such results indicate that practical benefits and concerns influence AV demand and WTP to a greater extent than environmental awareness. Our model results indicate a disparity between WTB and WTP for AVs that mostly derives from the different types of environmental concerns, concerns about accidents, and perceived benefits from these automobiles. Our results urge policies according to which governments and companies closely examine consumers who exhibit WTB-WTP disparities. Issues relating to demand patterns, WTP, and a suitable policy framework are discussed.     

国内外汽车物流业发展研究

介绍了国内外整车物流的发展现状，列举了目前国内整车物流的问题并提出了发展整车物流的建议．     

爆破技术在黄骅港二期翻车机房工程中的应用

黄骅港翻车机房与廊道工程在施工时运用了爆破技术：文中重点对爆破施工方法的操作过程、技术要点及应注意的问题进行了介绍。该方法克服了传统施工方法的许多缺点，具有显著的经济效益和社会效益.     

基于电子商务的二手车营销模式研究

从传统二手车营销模式的弊端谈起，论述了基于电子商务二手车营销模式的优势，并在此基础上提出建立基于电子商务的二手车营销模式．并探讨了如何实现这种模式。     

飞行汽车的研究发展与关键技术

飞行汽车作为面向城市空中交通和未来出行的新型交通工具,正日益受到汽车和航空领域的重视,成为汽车和航空技术与产业跨界融合的重要发展趋势。该文介绍了飞行汽车的内涵及城市空中交通(UAM)概念的兴起,阐述了飞行汽车早期梦想的探索历程、面向城市空中交通的研究现状,以及未来将在全新智慧出行交通体系下实现大众化汽车“飞”起来的发展趋势;论述了飞行汽车发展的高功率密度电动推进、高升阻比轻质车体和低空飞行智能驾驶等主要性能瓶颈和关键技术;提出了中国飞行汽车的阶段性发展目标和构建汽车与航空跨界融合技术创新体系,以及重点推动城市空中交通和应急救援等领域示范应用的发展建议。     

沈阳动车所进口在线式动车组轮对诊断系统应用

对引进进口动车组轮对诊断系统设备的构成、原理进行分析及对设备安装的建议,便于设备使用、维修人员对系统有深入的了解,确保设备真正发挥预测轮对何时需要再仿形加工或更换进行全自动测量、诊断的作用,并使之经常处于良好的使用状态。     

对于优化25T型客车用风系统的探讨

对目前25T型客车用风系统进行了分析研究，提出了用风系统的优化方案，并进行了样机制造和样机试、验。