کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7120754 | 1461462 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multifractal analysis of three-dimensional surface topographies of GCr15 steel and H70 brass during wear process
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multifractal analysis of three-dimensional surface topographies of GCr15 steel and H70 brass during wear process Multifractal analysis of three-dimensional surface topographies of GCr15 steel and H70 brass during wear process](/preview/png/7120754.png)
چکیده انگلیسی
The variation of three-dimensional topographies of GCr15 steel and H70 brass during wear process was studied by multifractal method. A multi-stage test method was proposed to obtain the worn surfaces of friction pair at different wear time. The tests were performed on a ring-on-disc tribometer. The three-dimensional (3D) topographies of ring and disc were measured by laser confocal microscopy. Box-counting method was applied to compute multifractal spectrum, spectrum width Îα and spectrum difference Îf(α) of counter surfaces. All the spectra of mating surfaces are presented as parabolic curve, which indicates that the worn surfaces have the characteristics of multifractal. The Îα and Îf(α) of disc surfaces decrease at first, then stabilize at a small value and finally increase rapidly. Those of ring surfaces increase at first, then maintain at a small value and finally increase gradually. The multifractal study of 3D surface topographies reveals the singularity and nonlinear behavior of the friction system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 125, September 2018, Pages 196-218
Journal: Measurement - Volume 125, September 2018, Pages 196-218
نویسندگان
Xue Zuo, Yu Tan, Yuankai Zhou, Hua Zhu, Haifeng Fang,