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4101.基于Freescale单片机的双轮自平衡车设计与实现
[汽车制造业] [2014-03-24]
The self-balanced two-wheel Cars are often devised in various competitions,and are involved in this direction in many large games.Based on the Freescal Semiconductor XS128 series single-chip microcomputer as the core controller,with the gyroscope and angle sensor to achieve two-wheel Car self balance,the self-balanced two-wheel structure,the balance principle and the control algorithm are introduced emphatically,and the self-balanced two-wheel car is finally completed through repeated testing.
关键词：汽车；双轮自平衡车；单片机；XS128；控制算法
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4102.基于OV6620的自循迹小车路径识别技术研究
[汽车制造业] [2014-03-24]
This paper proposes extracting black line with small-scale method in the self-tracing car system based on OV6620 as the video sensor unit.Describe the hardware design of OV6620 and other two kinds of image signal extracting methods,which are to extract black line from left to right,and extract black line from middle to both sides.The testing shows that extracting black line with small-scale method has good stability,accuracy,and anti-interference.
关键词：汽车；自循迹小车；路径识别；OV6620
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4103.自应力陶粒钢管混凝土短柱火灾后轴向压缩行为的研究
[非金属矿物制品业,黑色金属冶炼和压延加工业] [2014-03-24]
The post-fire axial compressive behavior of a set of self-stress lightweight aggregate concrete filled steel tubes (noted as SSLC-ST) after exposure to fire was studied.Effect of the fire temperatures of the specimens and some parameters on the axial compressive behavior of the specimens was especially discussed.The results show that the initial circumferential strain of surface of the steel tubes is much larger than the longitudinal strain of the steel tubes,and the specimens of SSLC-ST have higher post-fire axial compression bearing capacity and better plastic deformation.It was concluded that the local buckling and overall failure of the specimens take place in succession while the specimens are axially loaded,and there are a lot of slip lines with angle of 45° on surface of the steel tubes.
关键词：钢铁；钢管混凝土；自应力陶粒钢管；火灾后行为；轴向挤压
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4104.铠装钢和钨合金的本构模型参数研究
[有色金属冶炼和压延加工业,黑色金属冶炼和压延加工业] [2014-03-24]
The study revealed that no single combination of Johnson-Cook model parameters provides superior overall prediction of penetration depth over the other possible combinations across the full range of rod L/D considered. The study provides valuable guidance on the selection of material model parameters future studies of kinetic energy penetration.
关键词：钢铁；铠装钢；钨合金；积木式分析；人因工程学
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4105.微型车后桥准双曲面齿轮接触应力分析
[汽车制造业] [2014-03-24]
Established a finite element model ofhypoid gear of a micro-car rear final drive,analysis of the hypoid gear mode and static contact by means of finite element analysis,obtained the surface of gear contact stress distribution in the different installation position,The results show that the finite element simulation exactly reflects the impact of the installation location of the hypoid gear to contact fatigue strength of gear,providing a theoretical basis for the design and installation of the gear.
关键词：汽车；准双曲面齿轮；接触应力；有限元分析
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4106.低碳钢的船用微波集成电路——腐蚀模型的电化学分析
[电气机械和器材制造业] [2014-03-24]
FeRB and FeOB are routinely co-located in iron corrosion products. FeRB may enhance corrosion under some cirumstances or have a passivating effect on corrosion in others. FeOB have been shown to enhance corrosion in pure, marine cultures.
关键词：钢铁；腐蚀；电化学
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4107.氢发射环境中高强度钢材的寿命预测模型开发
[黑色金属冶炼和压延加工业] [2014-03-24]
Hydrogen embrittlement of high strength steel is the most predominant unforeseen hurdle since high strength materials show sensitivity to the phenomena and the source of the hydrogen can be anything within the fabrication process, maintenance practice, or the natural corrosion cycle. Historically, the various aerospace defense contractors have each tested in their own manner, which has led to the national standard incorporating many approved test geometries and grey procedures. This work evaluated hydrogen susceptibility over a range of material strength, load level, and hydrogen emitting environment (weight- percent sodium chloride NaCl) which demonstrated performance with parameter ranges, not as pass/fail results, while developing life predictive models for each geometry.
关键词：钢铁；刚强度合金；氢脆；航天系统；寿命预测模型
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4108.基于CAN总线的汽车音响娱乐节点研究
[汽车制造业] [2014-03-24]
In the paper,an in-car audio entertainment node is designed,which is a kind of pre-installed automobile electronic assemblies.In order to reduce auto wiring harness and solve the communication problem between nodes,the hardware and software of the electrical control system were designed by using body CAN bus technology.The product has been successfully applied in a model which is made in joint ventures with foreign auto makers.The practical operation shows that functions are practical and reliable.It reaches completely design requirements,with good user experience and value.
关键词：汽车；CAN；汽车音响；CAN节点
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4109.基于CAN总线的汽车车灯网络控制系统的设计
[汽车制造业] [2014-03-24]
Aiming at the requirements of reducing the wires and cost of vehicular electrical systems,it is presented a scheme of the network control system for car lights.It is firstly introduced the characteristics of Controller Area Network (CAN) bus which is generally implemented in control systems for modem car lights.Moreover,the hardware design processes related to the network control system for car lights is elaborated in this paper.
关键词：汽车；控制器局部网；汽车车灯；网络控制系统
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4110.为提高路边停车安全性的警车车灯、反光标识及油漆处理性能分析
[汽车制造业] [2014-03-21]
The project is designed to modify an existing sensor-based traffic monitoring system so that it serves as a test bed to evaluate the retro-reflector, lighting, and paint treatments of an emergency vehicle to determine whether particular combinations produce improved 'move over' behavior of oncoming traffic.
关键词：汽车；逆反射；水基涂料；反射率；交通事故；回归分析；
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