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献标志码:A 文章编号:1672-7207(2019)04-0968-08 Effect of fissure on mechanical and damage evolution characteristics of sandstone containing hole defect ZHOU...) Abstract: In order to study the effect of fissure on the mechanics and damage evolution characteristics of rock containing hole defect, the mechanical behavior of sandstone containing hole defect......
Spectral Hole Burning and Photo-Stimulated LuminescenceProcesses in BaF(Cl,Br):Sm2+宋宏伟,张家骅,吕少哲,孙聆东,黄世华,虞家祺摘 要:SpectralHoleBurningandPhoto-StimulatedLuminescenceProcessesinBaF(Cl,Br):Sm2+SongHongwei(宋宏伟);ZhangJiahua(张家骅);LuShaozhe(吕少?..关键词:......
Trans. Nonferrous Met. Soc. China 23(2013) 2524-2536 Analysis and optimization of drilling parameters for tool wear and hole dimensional accuracy in B4C reinforced Al-alloy A. TASKESEN1, K. KUTUKDE2... 2012; accepted 9 January 2013 Abstract: Cutting parameters were evaluated and optimized based on multiple performance characteristics including tool wear and size error of drilled hole. Taguchi’s L27......
: 1672-7207(2005)03-0486-05 Automatic formation method of prospecting lineprofile map based on drill hole database CHEN Jian-hong, ZHOU Zhi-yong, CHEN Gang, GU De-sheng (School of Resources..., including incline drill hole calculating, simple type ore body linking and manually aided drawing of fault, etc. In the end, the formations of straight and non-straight drill hole type prospecting line......
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; 文献标志码:A Application of deep hole drilling technique on stress measurement of aluminum alloy component LIAO Kai, LIU Yi-peng, CHANG Xing-yu, ZHAO Qing (School of Mechanical and Electronic... the component. The deep hole drilling (DHD) technique is a effective method to determine the stress within complicated engineering components. The mechanism of DHD and simulation experiment process were......
prepared by straight cylindrical pin and threaded cylindrical pin. The effect of rotational speed and welding speed on the hole defect was investigated, and the microstructure of the FSW joint was observed. The results show that when the straight cylindrical pin is used at an inappropriate ratio of rotational speed to welding speed, continuous hole (or tunnel) at the bottom of advancing side forms......
method based on the size of hydrolysis hole was described here, but this method was not very accurate that could only be used in preliminary screening. To further improve the accuracy, a micro-plate...-mannanase; Pichia pastoris; high-production strains; hydrolysis hole screening method; micro-plate screening method......
基于应力和变形值最小的复合材料含孔板孔形参数有限元优化 李成1,铁瑛1 (1.郑州大学机械工程学院,河南郑州,450001) 摘要:本文基于对复合材料孔板主承力接触区的有限元强度分析结果,利用APDL参数化有限元分析技术,以孔板第一主应力Sl和X方向上的变形UX的最大值作为目标函数,对孔形参数进行优化.设计出基于应力和变形最小的开口形状,并得出了孔形参数与应力,变形之间的相互关系. 关键词:复合材料; 开孔板; 孔形; 应力; 变形; composite materials; plate with hole; hole shape; stress and displacement; APDL; [全文内容正在添加中] ......