不同混合动力电动轿车方案的比较与分析

设计了同在离合器前与发动机的动力耦合的ISA并联、电机在离合器后变速器前与发动机的动力耦合的一般并联、类似于Prius的混联三种HEV方案。对这三种方案和原轿车的最高车速、原地起步加速特性等动力性指标和基于ECE＋EUDC的100km油耗和续驶里程等能量经济性指标及排施行性进行了仿真和分析。得到相应结论。     

Effects of economic disincentives on private car use

A field experiment was conducted to investigate the effects of economic disincentives on private car use. Eighty two-adult households who were owners of at least one car were randomly assigned to three experimental groups and one control group. Both experimental and control groups logged their car trips during one week before, one week during, and one week after treatment. The treatment consisted of charging two of the experimental groups approximately 100% of normal cost per kilometer of driving during 2 weeks, and charging the third experimental group this amount per kilometer of driving during 4 weeks. With the purpose of investigating whether deliberate planning increases the effect of economic disincentives, the households in one of the former and in the latter group were asked to fill out a prospective car log for the following week. The control group was not charged or requested to fill out a prospective car log but was in other respects treated in the same way. Analyses of the car logs and odometer readings during and at the end of treatment showed a weak reduction of car use due to the economic disincentives that however were almost completely dependent on planning.     

乘用车车身结构噪声测量分析及控制

乘用车的车内低频噪声直接影响其乘座舒适性。本文探讨了声响感度分析、矢量合成分析，结构车内噪声声场耦合模态分析方法在车身结构噪声分析控制中的运用，在实车上其降噪效果也是令人满意的。     

上海别克轿车电子点火系统的检修

上海别克轿车的电子点火系统是一种无分电器点火系统，介绍了该系统的工作原理，点火系统的操作模式，影响点火控制的因素，另外，介绍了点火线圈，曲轴位置传感器，凸轮轴位置传感器，点火控制模块，爆震传感器等部件的功能，以及该系统的检修。     

一种进一步降低轿车空气阻力的方法

本文首先简要地分析了声激励减阻机理，然后，针对类似桑塔纳车身的模型采用了声激励的方法进行了减低空气阻力的研究，得出了声激励参数，方式和减阻效果的关系，并且对此进行了一定的分析，表明利用声激励方法可以进一步降低此类车身的空气阻力。     

列车基本阻力的思考

文章从分析列车气动阻力入手，结合现有试验数据，建立了我国铁路货车、客车及机车的单位基本阻力系列试用公式，经与《列车牵引诸规程》公式以及国外相关公式进行比较后，认为这种分析一试验型公式比纯试验型公式更为合理而有效。此外，作者还提出加强列车牵引理论和应用的基础性研究等建议。     

基于大数据的乘用车油耗与续驶里程研究

基于全球乘用车整备质量、燃油箱容积和燃油消耗量数据的统计分析,推算出"NEDC工况"下的续驶里程;再通过众测油耗的统计分析,推算出乘用车满油箱燃料的实际续驶里程范围;对乘用车的供油系统设计及电动乘用车的续驶里程对标燃油车提供依据。     

牵引定数不统一的港口后方腹地车流组织优化

线路区段牵引定数不统一是影响列车编组计划制定的重要因素,导致了列车在部分区段欠轴运行,在换重站或技术站进行补减轴作业.本文重点论述了减重方向列车编组方案的优化问题,提出了按充分条件将各种方案归类的方法,从而减少方案成本的对比次数,能快速获得最优的运送方案.在方案成本构成的分析过程中,充分考虑了各影响因素,将牵引机车费用看作与里程相关的可变成本,将欠轴列车浪费的机车和线路能力转化为惩罚费用,并考虑列车开行频率对方案费用的影响,最后从全网络的角度建立减重方向减轴列车编组优化模型.该模型既可获得合理的减重站,又能依据车流量关系选择优化的减轴编组方式,实例验证了模型的有效性.     

强风下有帆商船航行性能的研究(英文)

Ships which have large structures above water surface, such as pure car carriers (PCCs) and container vessels, have large speed reduction by wind pressure. In the present study, the running speed of a large PCC with two or more sails for using wind power is simulated. The simulated results demonstrate that the ship can keep a constant service speed even in winds of 20m/s except head and bow winds. This sail system can shorten annual average navigation time by about 4 hours per voyage.     

窄轨重载铁路车辆滚摆振动的控制

介绍了澳大利亚昆士兰窄轨铁路在控制重载运煤车辆滚摆振动方面的研究成果.