自相关
研磨
快速傅里叶变换
傅里叶变换
机械加工
计算机模拟
光学(聚焦)
计算机科学
曲面(拓扑)
指数函数
算法
材料科学
机械工程
数学
模拟
工程类
几何学
数学分析
光学
物理
统计
作者
Lin Li,Jinyuan Tang,Yuqin Wen,Caichao Zhu
出处
期刊:Journal of tribology
[ASME International]
日期:2020-04-15
卷期号:142 (9)
被引量:16
摘要
Abstract Numerical simulation of three-dimensional rough surfaces based on fast Fourier transform (FFT) is revisited. A more systematic approach, which is an extension of the current FFT-based simulation models, is proposed to approach surface reconstruction. Moreover, the simulation of the surfaces with machining signature by prescribing the parameters, take ultrasonic-assisted grinding as an example, has been taken as the research focus for the first time. The effectiveness is tested by three cases of simulation examples. Excepting the surface with exponential autocorrelation function, the simulation of surfaces with grinding machining marks is considered both by prescribing the theory autocorrelation function and by measuring a small area as a sample. The results show that the proposed method has great potential in engineering applications.
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