摘要
随着科技的发展,零件比表面积增加,零件表面几何形貌对设备性能的要求日益显著。由于需要借助有限单元法模拟零件表面上发生的物理、化学现象,因此对零件表面计算机建模的研究具有较强的理论和实际意义。介绍目前粗糙表面的主要建模方法,并指出各种方法的优点及其局限性。
The ratio surface area of parts increasing rapidly with the development of science and technology, the impact of surface topology becomes more and more significant on device performance. The study on surface modeling of parts has a strong theoretical and practical significance,since the needs of using FEM to simulate the physical and chemical phenomena occurred on the surface of parts. Describes the most used modeling methods of rough surfaces, pointing out the advantages and limitations of these methods.
出处
《现代制造工程》
CSCD
北大核心
2009年第12期5-8,共4页
Modern Manufacturing Engineering
基金
国家自然科学基金项目(50775039)
关键词
表面形貌
分形几何
自相关函数
功率谱密度函数
小波分析
surface topology
fractal geometry＇
autocorrelation function
power spectral density function
wavelet analysis
