MULTI-SCALE BASED UNIFIED MODELING AND SIMULATION OF PART SURFACE TOPOGRAPHY

作者：Qiu, Chan; Liu, Zhenyu^*; Tan, Jianrong; Bu, Wanghui

来源：International Journal of Innovative Computing Information and Control, 2012, 8(3A): 1787-1798.

• Multi-scale
• Multi-resolution
• Multi-fractal
• Wavelet analysis

This paper concentrates on the multi-scale based unified modeling method of part surface topography. First of all, a three-dimensional multi-fractal characteristic function is proposed, which can be used to describe the micro-topography of a three-dimensional multi-fractal rough surface. The altitude variation of surface topography can be regarded as a series of stochastic signals, so the multi-scale information can be extracted by wavelet analysis and decomposed into four scales. The extracted multi-scale redundant information is optimized into multi-resolution information. Then, a method is proposed to evaluate the consistency of the multi-scale information, and the information transmission model of multi-scale part surface is also built. Finally, the method of multi-scale modeling is verified to be feasible by multi-performance simulation of the gem processing machine tool.

• 出版日期2012-3
• 单位浙江大学