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钢-混组合梁挠度增大系数的神经网络计算方法 被引量:2
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作者 魏海斌 张仰鹏 +1 位作者 焦峪波 刘寒冰 《吉林大学学报(工学版)》 EI CAS CSCD 北大核心 2014年第4期963-967,共5页
以简支组合梁承受均布和集中荷载为例,考虑了界面滑移效应,引入挠度增大系数的概念,以ANSYS模拟得到的组合梁有限元模型产生样本数据,将BP神经网络用于挠度增大系数的计算,推导得出了增大系数的闭合解公式。
关键词 道路工程 组合梁 挠度增大系数 神经网络 滑移效应
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Partial slip effects in flow over nonlinear stretching surface
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作者 T.HAYAT M.IMTIAZ A.ALSAEDI 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2015年第11期1513-1526,共14页
The two-dimensional flow of a viscous nanofluid is investigated. The flow is caused by a nonlinear stretching surface with the slip effects of the velocity, the temperature, and the concentration. The fluid is electri... The two-dimensional flow of a viscous nanofluid is investigated. The flow is caused by a nonlinear stretching surface with the slip effects of the velocity, the temperature, and the concentration. The fluid is electrically conducted in the presence of an applied magnetic field. Appropriate transformations reduce the nonlinear partial differential system to an ordinary differential system. The convergent solutions of the governing nonlinear problems are computed. The results of the velocity, the temperature, and the concentration fields are calculated in series forms. The effects of the different parameters on the velocity, the temperature, and the concentration profiles are shown and analyzed. The skin friction coefficient, the Nusselt number, and the Sherwood number are also com-puted and investigated for different embedded parameters in the problem statements. 展开更多
关键词 magnetohydrodynamic (MHD) nanofluid nonlinear stretching sheet slipeffect
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