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Effect of ball-milling parameter on mechanical and damping properties of sintered Mg-Zr alloy LIU Zi-li(刘子利)1, 2, 3, LIU Xi-qin(刘希琴)3, SHEN Ping(沈 平)3, ZHU Xiu-rong(朱秀荣)2, MENG Liang(孟 亮)1 1... of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Received 23 October 2009; accepted 27August 2010 Abstract: Effects of ball-milling parameter......
J. Cent. South Univ. Technol. (2010) 17: 1079-1086 DOI: 10.1007/s11771-010-0600-7 Improved parameter selection method for mesoscopic numerical simulation test of direct tensile failure of rock... method of selecting the mechanical properties of materials was presented for the random mechanic parameter model based on the mesoscopic damage mechanics. The product of strength and elastic modulus......
J. Cent. South Univ. (2019) 26: 229-240 DOI: https://doi.org/10.1007/s11771-019-3996-8 Parameter optimization for improved aerodynamic performance of louver-type wind barrier for train-bridge... is disadvantageous to the operational safety of the train. Key words: wind barrier; aerodynamic force; train-bridge system; scaled wind tunnel simulation; parameter optimization Cite this article as: HE......
Technology, Huazhong University of Science and Technology, Wuhan 430074, China Received 9 August 2017; accepted 28 January 2018 Abstract: The equi-biaxial tensile test is often required for parameter... for calibration of Yld2000-2d yield function. Key words: aluminum alloy sheet; anisotropic behavior; yield function; parameter identification; plane strain test 1 Introduction As one of the lightweight......
at post-failure conditions, the flight test was scheduled. Table 1 gives the flight test conditions of control surface stuck. In the first flight test, the control input for the real-time parameter..., 23(2): 302-310. [7] PARK W J, KIM E T, SONG Y K, KO B J. A study on the real-time parameter estimation of DURUMI-II for control surface fault using flight test data [J]. International Journal......
ARTICLE J. Cent. South Univ. (2019) 26: 1619-1636 DOI: https://doi.org/10.1007/s11771-019-4117-4 Factors affecting thin coal seam shearer drum coal-loading performance by a model test method GAO... to study the pivotal factors’ influences on drum coal-loading rate using a model test method. The effects of the drum hub diameter, cutting depth, vane helix angle, drum rotation speed and hauling speed......
东烧厂提高烧结料层厚度的试验研究王常秋1,侯恩俭1,吴铿2,何海熙2,尹晓莹3,杨森2(1.辽宁省鞍山市鞍钢集团矿业公司东烧厂2.北京科技大学 冶金与生态工程学院,北京 1000833.北京科技大学 冶金与生态学院,北京 100083)摘 要:在实验室条件下,以鞍钢集团矿业公司东烧厂赤浮精矿为主要原料进行了600 mm提高到700 mm的厚料层烧结杯试验,获得了生产化学成分稳定,机械强度高,粒度均匀,高温冶金性能良好烧结矿的最佳生产工艺参数,给出了烧结过程中参数变化对烧结矿技术经济指标的影响规律,为鞍钢东烧厂进......
承钢钒钛磁铁精矿烧结工艺参数的正交试验研究王文山1,孙艳芹2,任刚2,李福民2,吕庆2(1.辽宁省沈阳市东北大学材料与冶金学院2.河北理工大学 冶金与能源学院,河北唐山 063009)摘 要:承钢烧结生产目前主要以钒钛磁铁精矿为含铁物料,但其成品烧结矿强度低,低温还原粉化严重.针对这一问题,通过烧结杯试验研究了烧结矿碱度,混合料燃料配比,烧结矿MgO含量和混合料水分等工艺参数对烧结矿机械强度和低温还原粉化的影响,得出了承钢在当前原燃料条件下合理的烧结工艺参数为碱度2.6,燃料配比4.5%,烧结矿中MgO质量分数......
: red-sandstone; large-scale field test; mechanical characteristic; strength parameter  ..., and shear strength parameters for red-sandstone with different water contents,different compactions, and different grain size distributions were obtained from the tests. A practical procedure of in-situ test......
J. Cent. South Univ. (2018) 25: 2550-2566 DOI: https://doi.org/10.1007/s11771-018-3935-0 Dilation angle variations in plastic zone around tunnels in rocks-constant or variable dilation parameter... of Springer Nature 2018 Abstract: Dilation angle is a significant parameter needed for numerical simulation of tunnels. Even though dilation parameter is physically variable and dependent on confinement......