P183.4 99042789扩展物体漫反射光传输及成像的数值模拟研究=Nu- merical simulation of propagation of diffuse reflectionlight of extended object[刊,中]/王英俭,吴毅(中科院安徽光机所国家高技术大气光学重点实验室.安徽,合肥(230...P183.4 99042789扩展物体漫反射光传输及成像的数值模拟研究=Nu- merical simulation of propagation of diffuse reflectionlight of extended object[刊,中]/王英俭,吴毅(中科院安徽光机所国家高技术大气光学重点实验室.安徽,合肥(230031))//光学学报.—1998,18(10).—1470—1472对扩展漫反射体的成像进行了数值模拟研究。利用近轴近似标量波动方程及其分步相屏算法,对漫反射体反射的相对于接收孔径光轴的近轴光传输及其成像进行了数值模拟计算分析,结果表明该模拟算法是可行的,也对图像传输的湍流效应进行了初步计算和讨论。图4参3(严寒)P183.4 99042790实际大气中激光闪烁的概率分布=Probability distributionof laser irradiance scintillation in a realturbulent atmosphere[刊,中]/饶瑞中,王世鹏,刘晓春,龚知本(中科院安徽光机所大气光学研究室.展开更多
Research has been conducted about the hardness prediction for the carburizing and quenching process based on an optimized hardness simulation model,in accordance with the calculation rule of mixed phases.The coupling ...Research has been conducted about the hardness prediction for the carburizing and quenching process based on an optimized hardness simulation model,in accordance with the calculation rule of mixed phases.The coupling field model incorporates carburizing field analysis,temperature field analysis,phase transformation kinetics analysis and a modified hardness calculation model.In determination of the calculation model for hardness,calculation equations are given to be applied to low carbon content(x(C)<0.5%) for the child phases and the martensite hardness is calculated for high carbon content(x(C)>0.5%) in alloy.Then,the complete carburizing-quenching hardness calculation model is built,and the hardness simulation data are corrected considering the influence of residual austenite(RA) on hardness.Hardness simulations of the carburizing and quenching process of 17CrNiMo6 samples have been performed using DEFORM-HT_V10.2 and MATLAB R2013 a.Finally,a series of comparisons of simulation results and measured values show a good agreement between them,which validates the accuracy of the proposed mathematical model.展开更多
文摘P183.4 99042789扩展物体漫反射光传输及成像的数值模拟研究=Nu- merical simulation of propagation of diffuse reflectionlight of extended object[刊,中]/王英俭,吴毅(中科院安徽光机所国家高技术大气光学重点实验室.安徽,合肥(230031))//光学学报.—1998,18(10).—1470—1472对扩展漫反射体的成像进行了数值模拟研究。利用近轴近似标量波动方程及其分步相屏算法,对漫反射体反射的相对于接收孔径光轴的近轴光传输及其成像进行了数值模拟计算分析,结果表明该模拟算法是可行的,也对图像传输的湍流效应进行了初步计算和讨论。图4参3(严寒)P183.4 99042790实际大气中激光闪烁的概率分布=Probability distributionof laser irradiance scintillation in a realturbulent atmosphere[刊,中]/饶瑞中,王世鹏,刘晓春,龚知本(中科院安徽光机所大气光学研究室.
基金Projects(51535012,U1604255)supported by the National Natural Science Foundation of ChinaProject(2016JC2001)supported by the Key Research and Development Program of Hunan Province,China
文摘Research has been conducted about the hardness prediction for the carburizing and quenching process based on an optimized hardness simulation model,in accordance with the calculation rule of mixed phases.The coupling field model incorporates carburizing field analysis,temperature field analysis,phase transformation kinetics analysis and a modified hardness calculation model.In determination of the calculation model for hardness,calculation equations are given to be applied to low carbon content(x(C)<0.5%) for the child phases and the martensite hardness is calculated for high carbon content(x(C)>0.5%) in alloy.Then,the complete carburizing-quenching hardness calculation model is built,and the hardness simulation data are corrected considering the influence of residual austenite(RA) on hardness.Hardness simulations of the carburizing and quenching process of 17CrNiMo6 samples have been performed using DEFORM-HT_V10.2 and MATLAB R2013 a.Finally,a series of comparisons of simulation results and measured values show a good agreement between them,which validates the accuracy of the proposed mathematical model.
