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不同支柱连接结构球罐对比研究 被引量:4
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作者 占双林 邓海军 赵慧磊 《化工设备与管道》 CAS 2015年第6期20-23,共4页
利用有限元分析软件ANSYS对4 000 m^3大型球罐进行整体建模,对其在不同操作工况下进行应力分析,并通过对长圆形连接结构、U形柱结构、托板结构三种支撑形式在最危险工况下的受力对比,找出最优的支撑结构。
关键词 大型球罐 有限元法 长圆形连接结构 U形柱结构 托板结构 强度分析比较
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轨道边坡清筛机枕梁国产化设计 被引量:1
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作者 孟庆玲 孙保林 《机械工程师》 2013年第10期34-36,共3页
轨道边坡清筛机是一种从美国新引进的大功率轨道养护设备,一部分系统和组件均已实现国产化,根据转向架国产化要求须重新设计枕梁。文中以保证挖掘轮等工作装置的作业深度不变为原则,根据国产转向架的安装要求、工作要求以及与车架之间... 轨道边坡清筛机是一种从美国新引进的大功率轨道养护设备,一部分系统和组件均已实现国产化,根据转向架国产化要求须重新设计枕梁。文中以保证挖掘轮等工作装置的作业深度不变为原则,根据国产转向架的安装要求、工作要求以及与车架之间的相对运动要求确定枕梁的关键结构尺寸,然后根据枕梁立板的形心主惯性矩不变计算新的板厚,并与原始设计强度进行了比较分析。 展开更多
关键词 枕梁 上心盘安装 相对运动间隙 强度比较分析
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An International Comparative Analysis on China's Economic Growth and the Convergence in Energy Intensity Gap and Its Economic Mechanism 被引量:1
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作者 Qi Shaozhou Yun Bo Li Kai 《Chinese Journal of Population,Resources and Environment》 2011年第2期65-75,共11页
In this paper,the authors have empirically analyzed the convergence in per capita GDP gap and the convergence in the variation of energy intensity with respect to the change of per capita GDP between China and eight d... In this paper,the authors have empirically analyzed the convergence in per capita GDP gap and the convergence in the variation of energy intensity with respect to the change of per capita GDP between China and eight developed countries.Then,the authors run a regression on the impact of decisive factors of economic growth on energy intensity and its change,so as to find out the economic mechanism of energy intensity gap changing with respect to the variation of economic growth.This study concludes that:First,there is a convergence in per capita GDP gap between China and the eight developed countries.With the convergence in per capita GDP gap,the energy intensity gap between China and eight different countries also converge,and the convergence rate of the latter is faster than that of the former,i.e.if the per capita GDP gap between China and the eight developed countries decreases by 1%,the energy intensity gap between them will correspondingly decrease by 1.552%.Second,the energy intensity decreases with the improvement of industrial structure,the rising of energy prices,the advances of technology,and the expansion of investment in fixed assets,and it slightly increases with the increase of FDI.Third,the energy intensity gap between China and eight developed countries narrows with the lessening of the difference in fixed assets investment,energy prices,and technological progress between China and eight developed countries,yet increases with the narrowing of the difference in FDI,and has no significant correlation with the difference in industrial structure.Fourth,the narrowing of difference in per capita GDP between China and the eight developed countries can result in the lessening of energy intensity gap,whose economic mechanism is that the decisive factors,such as difference in investment,technology,and the competition mechanism of prices,which can determine the difference in economic growth,can significantly affect the energy intensity gap. 展开更多
关键词 economic growth energy intensity CONVERGENCE
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