A novel random generation method of two-dimensional particles based on the complex Fourier series
文献类型：期刊论文
| 作者 | Zhou, Haoran1,3; Meng, Qingshan1; Qin, Qinglong1,3; Wu, Kai1,3; Dong, Youkou2 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 400期号:-页码:- |
| 关键词 | Complex Fourier series Particle shape Inverse fast Fourier transform Particle random generation Discrete element method |
| ISSN号 | 0032-5910 |
| 英文摘要 | A systematic method is proposed to randomly generate nonstar-like particles satisfying target shape descriptors. Considering the problem of the reentrance angle, the complex function is selected to describe the particle profile. Correlation analysis is used to determine the total harmonic number of the Fourier series, and a new expression of the phase angle that can be fitted by normal distribution is proposed. Additionally, the Knot phenomenon, which occurs when the complex Fourier method is utilized to form particles, is described and the criterion for its occurrence is proposed. Inspired by the particle formation process, a novel method of particle generation is proposed. Through efficiency and error tests, the method is proved to be efficient and stable to generate virtual particles. Ball-shaped, ellipse-shaped, calcareous sands and standard sands are compared in a direct shear test by using discrete element method (DEM). The samples composed of irregular particles show a significant increase in shear modulus, dilatancy and peak stress. Therefore, the particle stochastic generation method in this study is suggested for generating irregular particle with quantified shape parameters.(c) 2022 Elsevier B.V. All rights reserved. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000790503400005 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35119]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.College of Marine Science and Technology, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China 3.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Zhou, Haoran,Meng, Qingshan,Qin, Qinglong,et al. A novel random generation method of two-dimensional particles based on the complex Fourier series[J]. POWDER TECHNOLOGY,2022,400(-):-. |
| APA | Zhou, Haoran,Meng, Qingshan,Qin, Qinglong,Wu, Kai,&Dong, Youkou.(2022).A novel random generation method of two-dimensional particles based on the complex Fourier series.POWDER TECHNOLOGY,400(-),-. |
| MLA | Zhou, Haoran,et al."A novel random generation method of two-dimensional particles based on the complex Fourier series".POWDER TECHNOLOGY 400.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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