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针对我国铁路信号设备监测系统结构存在的不足．提出了一种基于PXI总线和LabVIEW平台的信号设备远程测控系统的设计方案，介绍了该系统的硬件、软件组成和利用DataSocket技术实现的网络监控和数据共享的方法。 相似文献
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故障现象:一辆桑塔纳2000轿车,经朋友介绍到学校进行维修。驾驶员反映:该车发动机开始的故障是游车,但发动机高速运转时一切正常。到修理厂去了几次故障都没能排除,后来发展成排气管大量冒黑烟。 相似文献
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在汽油电控发动机中,喷油器的作用是将汽油泵提供的压力油定时、定量地喷入气缸中,与进入气缸的气体形成符合(14.7公斤空气比1公斤汽油)发动机运行工况的各种可燃性混合气体。喷油器实际上是一个受ECU控制的电磁阀,ECU给其通电时,电磁阀开启,汽油喷入气缸(或进气管中)。ECU给其断电,喷油器关闭,停止喷油。喷油器喷入气缸 相似文献
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简要介绍MDT和ObjectARX的概况,在Visual C++6.0的集成开发环境下使用ObjectARX2000实现MDT的二次开发;围绕轴承剖视图绘制实例,详细阐述ObjectARX2000进行MDT二次开发的设计技术和具体方法. 相似文献
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The incubation period of proeutectoid ferrite transformation for Si-Mn transformation induced plasticity (TRIP) steel has
been calculated by the Aaronson’s incubation period model for transformation. The influences of chemical compositions and
hot deformation of austenite on the incubation period have been taken into consideration in the calculation, and some parameters
have been proposed and validated with the measured time temperature transformation (TTT) curves from dilation tests. The calculation
results show that it is essential to take into account of the effect of solute atoms on the interfacial energy in the austenite
grain boundaries. For hypoeutectoid steel, the incubation period of ferrite transformation increases with the increase of
C and Mn contents, and C has a greater impact than that of Mn, while the incubation period of ferrite transformation decreases
with the increase of Si content. Hot deformation shortens the incubation time and promotes austenite to ferrite transformation. 相似文献
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