Results 21 to 30 of about 49,396 (261)
Stick-slip motion of a two-dimensional coupled dry friction oscillator
Journal of Hebei University of Science and Technology, 2018 In view of the widely existed two-dimensional friction problems in engineering, an oscillator model which considers the coupling of and direction is established by introducing oblique springs.
Shangwen HE +4 more
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Frictional adhesion: a new angle on gecko attachment [PDF]
Journal of Experimental Biology, 2006 SUMMARYDirectional arrays of branched microscopic setae constitute a dry adhesive on the toes of pad-bearing geckos, nature's supreme climbers. Geckos are easily and rapidly able to detach their toes as they climb. There are two known mechanisms of detachment: (1) on the microscale, the seta detaches when the shaft reaches a critical angle with the ...
K, Autumn +4 more
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Effects of the application system on the physical and mechanical properties of mineral fertilizers [PDF]
Journal on Processing and Energy in Agriculture, 2018 Mineral fertilizers have a pivotal role in contemporary agricultural production, especially when seeking to exploit the full biological potential of crops.
Gavrilović Marija +4 more
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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 +4 more
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Case Studies in Thermal Engineering, 2023 Inserting a decaying swirler into a heat exchanger has been shown to improve heat transfer with minimal effect on the friction factor. The study analyses the effect of diameter, twist angle, and blade count on the thermal-hydraulic performance of a ...
At-Tasneem Mohd Amin +2 more
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Internal Friction of Angle Model of Particles [PDF]
, 2021 Abstract Currently, pressure from industry to streamline processes by creating their simulation models, and thus to gradual digitization is increasing. The essence of representative simulation models of bulk materials is to understand the principles and laws of the real behavior of particles.
Jiri Zegzulka +5 more
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Numerical simulation of submarine pipeline penetration in sandy seabed
Journal of Hebei University of Science and Technology, 2022 In order to predict the penetration depth of submarine pipeline on sandy seabed,a coupled Eulerian-Lagranginan finite element model of submarine pipeline penetration on sandy seabed was established under ABAQUS to simulate the process of submarine ...
Xiaoming ZHENG +4 more
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Applied Sciences, 2020 A new transmission theory of “global dynamic wrap angle” for friction hoist is proposed. The theory is based on a mine hoist simulation model which combines the suspended rope with the wrapped rope.
Yongbo Guo +4 more
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The Friction Angle of the Leiyang Marble Surface after Exposure to High Temperature
Advances in Civil Engineering, 2021 There is a lack of information about the temperature-dependent nature of the rock surface, which is one of the essential parameters to predict the surface friction.
Meng Hong Peng, Man Huang
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Applied SciencesSlope stability is a major safety concern of rockfill embankments. Since rockfills are incohesive materials, only friction angle is considered as a shear strength parameter in the slope stability analysis of rockfill embankments.
Congyong Ran +5 more
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