共查询到19条相似文献,搜索用时 93 毫秒
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目前,我院正处于向任职教育转型的阶段,实践性教学是任职教育重要的教学形式。现在我院的电工电子实践性教学分为实物实验和虚拟实验两种形式。本文简要介绍了虚拟实验的概念,虚拟软件的选取和使用方法。 相似文献
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介绍了履带轮结构的基本组成以及其转向、行驶原理;建立了履带轮式装载机的虚拟样机模型,对履带轮式装载机的转向性能进行了仿真研究,证明了装载机更换履带轮后基本不影响原车的转向性能;最后进行了实验,验证了仿真结果以及虚拟样机模型的正确性。履带轮转换技术的应用既能较好的保持原车的机动性,又能提高车辆在一些特殊环境下的通过性能,具有较大的推广应用价值。 相似文献
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对击式液压锤打击过程计算机仿真和实验研究 总被引:1,自引:0,他引:1
分析了1000J对击式液压锤打击过程。通过建立数学模型和利用计算机数字仿真,求出了打击过程中上、下锤头位移、速度和联通油压变化规律,并与实验结果进行了比较和分析。 相似文献
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数控技术及开放式数控系统 总被引:4,自引:0,他引:4
从数控系统的发展入手,在讨论我国数控系统总体发展规划基础上,重点阐述了开放式数控系统发展问题,结合IEEE的定义,明确了开放式数控系统的概念,并对国内外的相关研究进行了总结,继而分析了开放式数控系统的分类与应用前景。 相似文献
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对转筒干燥器圆弧抄板的四种安装形式下的升举物料量进行了推导,在此基础上。编制了计算程序,并得出了模拟结果。 相似文献
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电解加工间隙中的传质过程及其对电解加工的影响 总被引:1,自引:0,他引:1
这里应用流体力学、传质学和电化学理论,分析了电解加工间隙中处于紊流状态的电解质溶液内的传质过程。在此基础上建立了阳极电流密度的计算方法,并讨论了外加电压、电解质浓度、流速等参数对电解加工的影响。 相似文献
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Tony Utomo Zhenhua Jin MSq Rahman Hyomin Jeong Hanshik Chung 《Journal of Mechanical Science and Technology》2008,22(9):1821-1829
An investigation of the gas-liquid ejector has been carried out to study the influence of operating conditions and ejector
geometries on the hydrodynamics and mass transfer characteristics of the ejector by using three-dimensional CFD modeling.
The CFD results were validated with experimental data. Flow field analysis and prediction of ejector performance were also
conducted. Variations of the operating conditions were made by changing the gas-liquid flow rates ratio in the range of 0.2
to 1.2. The length to diameter ratio of mixing tube (L
M/D
M) was also varied from 4 to 10. CFD studies show that at L
M/D
M=5.5, the volumetric mass transfer coefficient increases with respect to gas flow rate. Meanwhile, at L
M/D
M=4, the plot of volumetric mass transfer coefficient to gas-liquid flow rate ratio reaches the maximum at gas-liquid flow
rate ratio of 0.6. This study also shows that volumetric mass transfer coefficient decreases with the increase of mixing tube
length. 相似文献
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Xiaohong Jia 《Tribology International》2011,44(5):651-659
A simulation model to predict pumping by shafts with various surface finishes, in combination with a rotary lip seal, has been developed and validated by experiment. The model consists of a fluid mechanics analysis of the flow in the sealing zone coupled with a deformation analysis of the seal. The experimental validation consists of pumping rate measurements with shafts whose surface structures contain laser generated oblique grooves. Plots of pumping rate vs. various parameters show good agreement between the model and experiment. Plots of torque vs. speed, as well, show good agreement between the model and experiment. 相似文献
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A prototype of mass air flow meter for automobile industry was developed on the basis of thermal flow microsensor. Design and manufacturing technology of the flow meter are described. Test procedure and results are presented. Developed prototype of flow meter can diagnose gas flow rates in a wide range. 相似文献