Wear study on flexible brush-type soil removal component for removing soil used to protect grapevines against cold

Ma, Shuai; Xu, Liming; Xu, Shucai; Tan, Haochao; Song, Jiafeng; Shen, Congcong

doi:10.1016/j.biosystemseng.2023.03.001

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…It is then imported into the multi-flexible body dynamics software to define the fundamental physical properties of the earth auger device. Furthermore, to improve computational efficiency, simplification measures have been implemented in the model [26]. Simplify the supported cylinder as a linkage.…”

Section: Dem-mfbd Coupling Simulation Modelmentioning

confidence: 99%

Enhancing Sustainable Afforestation through Innovative Earth Auger Design: A Simulation Study in Hilly Regions

Wang,

Zhang,

Chen

et al. 2024

Sustainability

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The objective of this study was to advance sustainable forestry development through the creation of mechanical equipment, taking into account forestry operational methods. A suspended automatic feeding and retracting excavation device for tree pits was engineered, and its interaction with soil was investigated by integrating the Discrete Element Method (DEM) with Multi-Flexible Body Dynamics (MFBD). Based on simulation results, the research explored the impact mechanisms of the machine on soil transportation, working load, and fatigue lifespan of the spiral blades for different terrains and operating conditions. The coupling simulation method demonstrated the potential for designing and testing forestry equipment in specific operating environments, reducing time and resource consumption for field testing. Terrain significantly influenced soil disturbance variability, while the effect of operating direction was minor. Operational parameters should consider soil and water conservation, favoring the formation of fish-scale pits. Field tests in forested areas validate the practicality of the apparatus, providing valuable insights for the operation and equipment design of earth augers in hilly regions.

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Section: Dem-mfbd Coupling Simulation Modelmentioning

confidence: 99%

Enhancing Sustainable Afforestation through Innovative Earth Auger Design: A Simulation Study in Hilly Regions

Wang,

Zhang,

Chen

et al. 2024

Sustainability

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“…Lenaerts et al [19] proposed a wheat stem model capable of bendable deformation and calibrated the simulated contact parameters. The discrete element parameters of flexible straw and soil are calibrated respectively and a discrete element model for flexible straw mulch soil model was established [20] . And a combined method of the EDEM-recurdyn coupling simulation and the soil tank wear experiment has been implemented to study the interaction and wear between flexible materials and soil.…”

Section: Introductionmentioning

confidence: 99%

Discrete element modeling and verification of the simulation parameters for chopped hybrid Broussonetia papyrifera stems

Peng,

Chen,

et al. 2024

International Journal of Agricultural and Biological Engineering

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In this study, the discrete element software EDEM was applied to establish a simulation model of non-uniform-sized particle units for Broussonetia papyrifera stalks, which aimed to address the low utilization rate of existing Broussonetia papyrifera harvesting machinery, the significant variation between the simulated model of Broussonetia papyrifera stalks and their actual appearance, as well as the absence of contact parameter calibration. Through a combination of the free-fall collision method, inclined plane sliding method, and inclined plane rolling method, numerical simulation was conducted to analyze the pattern of variations in contact parameters between Broussonetia papyrifera stalks and the steel material of the machinery. Accordingly, these parameters were calibrated. The results showed that the coefficient of restitution between Broussonetia papyrifera stalks and steel materials was 0.321, the static friction factor was 0.589, and the rolling friction factor was 0.078. With the parameters of contact between Broussonetia papyrifera stalks as variables and the experimentally measured pile angle as the objective of optimization, the steepest ascent experiment and the three-factor five-level rotation combination experiment were conducted. In this way, a second-order response model was constructed to analyze the relationship between the contact parameters and the pile angle. Through the optimization analysis of experimental data, it was determined that the coefficient of restitution between Broussonetia papyrifera stalks was 0.21, the static friction factor was 0.24, and the rolling friction factor was 0.03. Furthermore, the calibration results were validated through experimentation to show that the relative error between the obtained pile angle under the context of optimal parameter combination and the actual one was 4.11%. In addition, the relative error of mass flow rate in spiral transport was within a reasonable range, this study lays a foundation both theoretically and statistically for the simulation of contact parameters for Broussonetia papyrifera stalk harvesting processing, mechanical harvesting, and so on.

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“…Liu [19] adopted a flexible approach to create a dynamic model of a brush sampling mechanism. Ma [20] introduced a flexible brush-type model to identify wear in soil removal machines and increase the machine's lifetime. Recently, this approach has been introduced even in the simulation of toothbrushes.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Machine-Aided Experimental Models for Simulating the 3D Compliance of a Toothbrush

Cirelli,

Cellupica,

D’Angelo

et al. 2023

Machines

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One of the most discussed topics in toothbrush design is identifying the contact force exerted by the bristles on the teeth. Each bristle must generate a contact force to ensure tooth cleaning without damaging it. Numerical simulation is a very powerful tool for understanding the influence of design parameters (bristle shape and materials). This paper proposes a flexible multibody model to efficiently simulate the 3D compliance of a toothbrush. Each bristle is modeled using a discrete, flexible approach. The contact between the bristles and the target surface is established using the penalty contact method. An experimental test bench with a Universal Robot and a flat, transparent surface is set up. Validation is provided by comparing the reaction forces of the toothbrush with the reaction forces acquired by the load cells mounted on the end effector of the Robot. The results demonstrate the accuracy of estimating normal and tangential forces in various operating situations. The discrete flexible multibody technique has also demonstrated its viability in evaluating the displacement of the bristles when the toothbrush’s base body is put through a specified motion, even when it is exposed to a sudden change in direction. As a result, the model can be effectively utilized to assess how well various brush classes remove dental plaque. Therefore, the suggested model could provide guidance for holistic modeling and advancements in toothbrush design to boost their effectiveness for thorough cleaning.

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Wear study on flexible brush-type soil removal component for removing soil used to protect grapevines against cold

Cited by 5 publications

References 32 publications

Enhancing Sustainable Afforestation through Innovative Earth Auger Design: A Simulation Study in Hilly Regions

Enhancing Sustainable Afforestation through Innovative Earth Auger Design: A Simulation Study in Hilly Regions

Discrete element modeling and verification of the simulation parameters for chopped hybrid Broussonetia papyrifera stems

Numerical and Machine-Aided Experimental Models for Simulating the 3D Compliance of a Toothbrush

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