车架装配中的变形对半承载式客车车身结构强度的影响研究

基于半承载式客车车身结构的生产过程，提出一种考虑车架变形影响半承载车身结构强度的分析方法；在一定程度上提高仿真分析的精度，为在更深层次上探讨结构轻量化设计提供参考。     

国庆六十周年甘肃彩车平台结构设计与分析

通过对国庆六十周年甘肃彩车平台进行结构设计与分析,为三类汽车底盘改装特种车辆提供借鉴。     

KF70-VEN型自动倾翻车研制

介绍了KF70—VEN型自动倾翻车的技术参数、主要结构特点、试验结果及车辆强度计算,分析了车厢倾翻稳定性和车辆动力学性能。     

某型起重机底架有限元分析

起重机底架是关乎起重机稳定性的关键部件,故起重机底架强度分析至关重要。以某型起重机底架为研究对象,建立了底架有限元模型,根据实际工况添加边界条件,得到底架在不同工况下的应力云图,并分析了承载方位对底架应力的影响。     

Coupled lateral-longitudinal vehicle dynamics and control design with three-dimensional state portraits

The dynamics of vehicles with pneumatic tyres are well-known to be non-holonomic, nonlinear, and subject to state bounds in order to remain on defined roadways. As such, it can be challenging to apply many of the tools typically used to analyse nonlinear dynamics and synthesise control strategies. Furthermore, the use of traditional stability analyses is often insufficient for vehicle control design since adherence to the roadway geometry implies a constrained space that dictates stricter conditions on the states than provable stability. A two-state phase portrait approach has been used to analyse vehicle dynamics and provides an illustrative view of the state trajectories at constant speed. This paper extends the phase portrait to three states to represent the nonlinear vehicle dynamics with steering and longitudinal tyre force inputs and consideration of the longitudinal vehicle dynamics. The concept of a fixed point in the phase plane is extended to a stable curve and example controllers are examined and synthesised using the three-dimensional vector space.     

斜架车加长改造的技术分析

主要讨论把原设计用于沉箱溜放的斜架车加长改造，用于大型工程船舶拉排修理。根据斜架车在大型工程船舶修理中的实际应用，提出斜架车改造方案，说明了设计和制作过程，并结合实例论述了斜架车拉排作业流程。     

后置客车底盘离合器系统的匹配设计

简要介绍东风后置客车底盘的结构特点,并对其离合器系统的转矩容量、单位面积上的压力、圆周速度、比滑磨功、踏板行程、踏板力作的功和踏板力进行匹配设计;阐述后置客车底盘离合器系统安装与调整工作及其应注意的问题。     

基于试验条件下的两项专用校车国标浅析

从试验角度对2012版CB24406和GB24407两项校车标准在外部结构安全、底盘和车身方面的规定进行了分析,解释了标准制定的原则,提出了标准执行中的不足,为校车设计开发和标准修订提供参考。     

某型自卸车冷却系冷却能力不足的优化设计

针对我公司某自卸车搭载潍柴340马力发动机车型,现有冷却模块无法满足发动机冷却需求问题,本文通过对护风罩形式进行了优化和冷却模块与整车的匹配(加装防热风回流装置)的整改,对整个冷却系统进行了优化,并进行了试验验证,解决了相关车型冷却能力不足的问题,为同类车型冷却系优化提供了借鉴。     

Increasing urban tram system efficiency,with battery storage and electric vehicle charging

This paper examines the possible placement of Energy Storage Systems (ESS) on an urban tram system for the purpose of exploring potential increases in operating efficiency through the examination of different locations for battery energy storage. Further, the paper suggests the utilisation of Electric Vehicle (EV) batteries at existing Park and Ride (P&R) sites as a means of achieving additional energy storage at these locations. The study achieves this through MATLAB modelling utilising captured GPS data and publically available information. This study examines the scenario of uni-directional substations with no interconnection between the overhead catenary for both directions of travel, and discusses the trade-offs between ESS size and required current limits.The results show the savings in both energy and basic CO₂ emissions alongside the discussion of Return on Investment (RoI) that can be achieved through the potential installation of ESS at identified ideal locations along the tram network. Moreover, this may be extended to the use of EVs as stationary ESS sited at the existing P&R facilities. Further, the model may also be used to inform future infrastructure upgrades and potential improvements to air quality within urban environments.