Results 11 to 20 of about 3,658 (261)

Fundamental study on the effect of grain size distribution on angle of repose [PDF]

E3S Web of Conferences
In this study, the authors developed a new sidewall velocity-controlled cylindrical angle of repose measurement apparatus that can capture images of a sand heap continuously using two orthogonal cameras in order to reduce the cost of photography.
Kajiyama Shintaro, Nakata Yukio, Nakase Hitoshi   +2 more
doaj   +1 more source

Calibration and verification of DEM parameters of wet-sticky feed raw materials

Scientific Reports, 2023
In order to improve the accuracy of the parameters needed in the discrete element method (DEM) simulation process of wet-sticky feed raw materials, the JKR contact model in DEM was used to calibrate and verify the physical parameters of wet-sticky feed ...
Fei Peng, Limei Zhang, Zhiqiang Li, Jianming Chen   +3 more
doaj   +1 more source

Calibration and Test of Contact Parameters between Chopped Cotton Stalks Using Response Surface Methodology

Agriculture, 2022
The accuracy of the material parameter settings directly affects the reliability of the results of the discrete element method simulation. It is necessary to calibrate the relevant parameters to obtain accurate discrete element simulation results when ...
Bingcheng Zhang, Xuegeng Chen, Rongqing Liang, Xinzhong Wang, Hewei Meng, Za Kan   +5 more
doaj   +1 more source

Calibration and analysis of discrete element simulation parameters of Chinese cabbage seeds.

PLoS ONE, 2022
ObjectiveTo improve the accuracy of parameters used in discrete element simulation test of Chinese cabbage seeds harvesting process.MethodsFirstly, the key physical parameters of Chinese cabbage seeds were measured. According to the results, the discrete
Shengsheng Wang, Lu Mengqing, Xingyi Liu, Jiangtao Ji, Pan Chen   +4 more
doaj   +1 more source

Discrete Element Simulation Modeling Method and Parameters Calibration of Sugarcane Leaves

Agronomy, 2022
Objective The construction method of the discrete element model and the setting of simulation parameters in the strip- and blade-shaped sugarcane leaf are unclear.
Jiahui Ren, Tao Wu, Wangyujie Mo, Ke Li, Ping Hu, Fengying Xu, Qingting Liu   +6 more
doaj   +1 more source

Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles

International Journal of Aerospace Engineering, 2019
Evaluating the repose angle of granular materials under different kinds of gravitational conditions is essential for in situ resource exploration on surfaces of other Earth-like planets in the next decades.
H. Chen, Y. X. Chen, Q. S. Wei, Y. S. Shi   +3 more
doaj   +1 more source

Experimental Study of the Angle of Repose of Coral Sands

Journal of Marine Science and Engineering
The angle of repose is a fundamental parameter for assessing the stability of coral reefs. However, predictive models for this angle are currently lacking.
Zhen Yao, Jie Chen, Changbo Jiang, Zhiyuan Wu, Bin Deng, Yuannan Long, Hongtao Zou, Jinwei Zhang, Runze Bai   +8 more
doaj   +1 more source

Parameter Calibration of Discrete Element Model for Cotton Rootstalk–Soil Mixture at Harvest Stage in Xinjiang Cotton Field

Agriculture, 2023
Due to the lack of accurate discrete element simulation model parameters in the design optimization process of key agricultural machinery components in the whole mechanization technology system of cotton generation, the optimization and improvement of ...
Deli Jiang, Xuegeng Chen, Limin Yan, Haixiao Gou, Jiacheng Yang, Ying Li   +5 more
doaj   +1 more source

Antlion sand interaction: A study of repose angle

Biogeotechnics
The antlions dig a conical simple pit in sand to catch ants. The funnel shape of the trap is deliberate with a critical angle of repose and is steep and shallow enough to trigger avalanches and cause struggling prey to fall into the funnel.
Ali Maroof
doaj   +1 more source

Method of Measurement for the Angle of Repose of Sands

Soils and Foundations, 1997
ABSTRACT In this paper the angle of repose of sands is investigated; the slope angle of conical heaps of granular materials formed statically on a flat plate were observed as a typical angle of repose. The relationship of the angle of repose with the angle of internal friction is explained with regard of the deformation mechanism for the sliding ...
MIURA, KINYA, MAEDA, KENICHI, TOKI, SHOSUKE   +2 more
openaire   +1 more source