| 符合Gauss分布规律的随机粗糙表面数值模拟 |
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| 引用本文： | 张起生,王晓春,谢鸣.符合Gauss分布规律的随机粗糙表面数值模拟[J].燕山大学学报,2008,32(6). |
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| 作者姓名： | 张起生 王晓春 谢鸣 |
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| 作者单位： | 1. 燕山大学,机械工程学院,河北,秦皇岛,066004
2. 哈尔滨工业大学,能源科学与工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了研究目标表面激光和红外光散射特性,首先必须对材料表面粗糙度进行数值模拟,这是表面散射特性研究中的基础和关键.本文按照指数自相关函数关系建立二维粗糙表面统计分布规律数值模型,对随机粗糙表面轮廓进行描述,由计算机模拟生成粗糙度相关参数,如高度平均值、相关长度和均方根高度,进而生成随机数值表面.并结合实测的抛光花岗岩表面粗糙度相关参数进行模拟,其表面状态符合Gauss分布规律.
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| 关 键 词： | 数值模拟 自相关函数 均方根 Gauss分布 |
Numerical simulation of random rough surfaces based on Gauss distribution |
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| ZHANG Qi-sheng,WANG Xiao-chun,XIE Ming.Numerical simulation of random rough surfaces based on Gauss distribution[J].Journal of Yanshan University,2008,32(6). |
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| Authors: | ZHANG Qi-sheng WANG Xiao-chun XIE Ming |
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| Institution: | ZHANG Qi-sheng1,WANG Xiao-chun2,XIE Ming2 (1. College of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China,2. School of Energy Science , Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China) |
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| Abstract: | In order to investigate laser and infrared scattering characteristics of target surface, it is necessary to do numerical simu-lation for the roughness of material surfaces first, this is the foundation and key about the characteristic study of surface scattering. In this paper, numerical model of two-dimensional rough surfaces statistic distribution in terms of exponential autocorrelation function is built, so as to depict random rough surface profile. As a result roughness related parameters was obtained, ... |
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| Keywords: | numerical simulation autocorrelation function root mean square Gauss distribution |
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