DTQ6400轻型客车驻车制动传动机构的分析和改进

在分析论述ＤＴＱ６４００轻型客车驻车制动传机构所在的问题及其影响因素的基础上，提出了改进方案，并自行设计，研制了一种新型结构。经试验证明，这种新的制动传动机构的结构简单，易维修，易调整，是切实可行的。     

一种水泥路面摊铺抹平机

针对近年来水泥路面施工中使用的一种三辊轴式整平机所存在的不足之处，进行了改进设计并增加了某些功能，使之成为结构简单，实用性更强，操作更简便的水泥路面摊铺抹平机。重点从前行走辊加装偏心体，以弹性悬吊结构安装前行走辊，增设振动抹光平板和安装自助式转向装置方面作以介绍     

城市轨道交通CBTC移动闭塞系统屏蔽门控制分析

针对轨道交通车载信号与屏蔽门的控制进行阐述,着重探讨车载信号对屏蔽门联动控制的条件,并对屏蔽门不联动现象的常见原因进行概要分析。     

汽车双横臂式悬架转向梯形断开点位置优化

利用多刚体系统动力学中的Ｒ－Ｗ方法对双横臂式架转向机构进行空间运动计算，编制了断开点位置优化设计程序，与传统的平面作图法和平面解析法相比，考虑了更多的因素，并根据实际需要加入了权重函数，使计算结果更符合实际情况。     

运用道路模拟机进行道路谱分析

通过对道路模拟试验得到的“等效路形”进行谱分析,提出了运用道路模拟机进行道路谱分析的方法。     

ANALYZING HLA HAPLOTYPE OF THE LOCI HLA-A, -B, AND -DRB1 IN MONGOLIA ETHNIC GROUP

Objective To investigate HLA-A ,-B and -DRB1 allele and HLA-A-B-DRB1 haplotype frequencies in Mongolia ethnic group. Methods HLA-A, -B, -DRB1 allele and haplotype in the Mongolia ethnic group were investigated based on 93 individuals by PCR-sequence-based typing （SBT） method. Results Twenty-one alleles were detected for HLA-A, 44 for HLA-B, and 26 for HLA-DRBI. The most frequent alleles were HLA-A ＊ 2402（0. 2097）, HLA-B ＊ 1302（0.0699）, and HLA-DRBI ＊ 0701 （0. 1237）. The most common HLA-A-B-DRBI haplotype were A ＊ 3001-B ＊ 1302-DRB1 ＊ 0701, A ＊ 0101-B ＊ 3701-DRB1 ＊ 1001, followed by the A ＊ 0201-B ＊ 4601-DRB1 ＊ 0901, A ＊ 2402-B＊ 4801-DRB1 ＊ 1101, A＊ 2402-B＊ 5201-DRB1 ＊ 1501, A ＊ 3201-B ＊ 3503-DRB1 ＊ 1301, and A＊ 3303-B ＊ 5801-DRB1 ＊ 0301, which were also presented in Chinese populations. Conclusion The data can be used in forensic and paternity tests to estimate the frequency of a DNA profile or anthropologic research. The characteristics of the distribution of HLA alleles revealed that Mongolia ethnic group is characterized by northern Mongolian Chinese.     

跨江大桥车载危化品事故应急管理初探

通过分析目前跨江大桥车载危化品事故应急管理体系,提出建立区域协作的联动机制的必要性.基于区域协作的联动机制,提出以监测预警、资源储备、协同救援、评估恢复4个方面构建区域协作的应急管理机制.同时,以泰州大桥为例,提出基于区域协作救援机制的事故应急救援体系,包括应急组织、应急流程以及处置措施等内容.     

转向连接销热处理工艺研究

为避免某重型载货汽车前桥上的转向连接销(40CrH钢)产生淬火裂纹,同时满足金相组织要求,采用水溶性淬火介质(PAG类聚醚)进行了淬火工艺试验.结果表明,采用淬火温度为840℃、水溶性淬火溶液浓度为8％～10％及温度为20～50℃的新工艺进行淬火效果最佳,无淬火裂纹产生,累计生产的50万件转向连接销均未出现质量问题.     

Interaction of vehicle and steering system regarding on-centre handling

For the on-centre handling behaviour of vehicles the steering system is absolutely important. To investigate the interaction of the vehicle and steering system a validated, especially tailored simulation model was developed. Some meaningful vehicle and steering system parameters are altered to show the influence on steering wheel torque, steering feel and understeer. The results underline the importance of an accurate steering system model. Identified measures to improve the centre feel and steering response were a stiffer torsion bar, a higher cornering stiffness or a lower overall steering ratio. The steering response, however, suffers when the centre feel is improved by a higher trail. The steering rack friction reduces mainly the steering response while the steering column friction decreases the centre feel whereas a stiffer torsion bar lessens the understeer tendency.