Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification
In this study, a bionic nonsmooth drag-reducing surface design method was proposed; a mathematical model was developed to obtain the relationship between the altitude of the nonsmooth drag-reducing surface bulges and the spacing of two bulges, as well as the speed of movement, based on which two sub...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2021/5113453 |
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| author | Baoguang Wu Ruize Zhang Pengfei Hou Jin Tong Deyi Zhou Haiye Yu Qiang Zhang Jinsong Zhang Yuelin Xin |
| author_facet | Baoguang Wu Ruize Zhang Pengfei Hou Jin Tong Deyi Zhou Haiye Yu Qiang Zhang Jinsong Zhang Yuelin Xin |
| author_sort | Baoguang Wu |
| collection | DOAJ |
| description | In this study, a bionic nonsmooth drag-reducing surface design method was proposed; a mathematical model was developed to obtain the relationship between the altitude of the nonsmooth drag-reducing surface bulges and the spacing of two bulges, as well as the speed of movement, based on which two subsoiler shovel tips were designed and verified on field experiments. The mechanism of nonsmooth surface drag reduction in soil was analyzed, inspired by the efficient digging patterns of antlions. The nonsmooth surface morphology of the antlion was acquired by scanning electron microscopy, and a movement model of the nonsmooth surface in soil was developed, deriving that the altitude of the nonsmooth drag-reducing surface bulge is proportional to the square of the distance between two bulges and inversely proportional to the square of the movement speed. A flat subsoiler shovel tip and a curved tip were designed by applying this model, and the smooth subsoiler shovel tips and the pangolin scale bionic tips were used as controls, respectively. The effect of the model-designed subsoilers on drag reduction was verified by subsoiling experiments in the field. The results showed that the resistance of the model-designed curved subsoiler was the lowest, the resistance of the pangolin scale bionic subsoiler was moderate, and the resistance of the smooth surface subsoiler was the highest; the resistance of the curved subsoiler was less than the flat subsoilers; the resistance reduction rate of the model-designed curved subsoiler was 24.6% to 33.7% at different depths. The nonsmooth drag reduction model established in this study can be applied not only to the design of subsoilers but also to the design of nonsmooth drag reduction surfaces of other soil contacting parts. |
| format | Article |
| id | doaj-art-68c51d37e984435e81e118503ab1a074 |
| institution | Kabale University |
| issn | 1754-2103 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-68c51d37e984435e81e118503ab1a0742025-02-03T05:57:19ZengWileyApplied Bionics and Biomechanics1754-21032021-01-01202110.1155/2021/5113453Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling VerificationBaoguang Wu0Ruize Zhang1Pengfei Hou2Jin Tong3Deyi Zhou4Haiye Yu5Qiang Zhang6Jinsong Zhang7Yuelin Xin8The College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringThe College of Biological and Agricultural EngineeringIn this study, a bionic nonsmooth drag-reducing surface design method was proposed; a mathematical model was developed to obtain the relationship between the altitude of the nonsmooth drag-reducing surface bulges and the spacing of two bulges, as well as the speed of movement, based on which two subsoiler shovel tips were designed and verified on field experiments. The mechanism of nonsmooth surface drag reduction in soil was analyzed, inspired by the efficient digging patterns of antlions. The nonsmooth surface morphology of the antlion was acquired by scanning electron microscopy, and a movement model of the nonsmooth surface in soil was developed, deriving that the altitude of the nonsmooth drag-reducing surface bulge is proportional to the square of the distance between two bulges and inversely proportional to the square of the movement speed. A flat subsoiler shovel tip and a curved tip were designed by applying this model, and the smooth subsoiler shovel tips and the pangolin scale bionic tips were used as controls, respectively. The effect of the model-designed subsoilers on drag reduction was verified by subsoiling experiments in the field. The results showed that the resistance of the model-designed curved subsoiler was the lowest, the resistance of the pangolin scale bionic subsoiler was moderate, and the resistance of the smooth surface subsoiler was the highest; the resistance of the curved subsoiler was less than the flat subsoilers; the resistance reduction rate of the model-designed curved subsoiler was 24.6% to 33.7% at different depths. The nonsmooth drag reduction model established in this study can be applied not only to the design of subsoilers but also to the design of nonsmooth drag reduction surfaces of other soil contacting parts.http://dx.doi.org/10.1155/2021/5113453 |
| spellingShingle | Baoguang Wu Ruize Zhang Pengfei Hou Jin Tong Deyi Zhou Haiye Yu Qiang Zhang Jinsong Zhang Yuelin Xin Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification Applied Bionics and Biomechanics |
| title | Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification |
| title_full | Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification |
| title_fullStr | Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification |
| title_full_unstemmed | Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification |
| title_short | Bionic Nonsmooth Drag Reduction Mathematical Model Construction and Subsoiling Verification |
| title_sort | bionic nonsmooth drag reduction mathematical model construction and subsoiling verification |
| url | http://dx.doi.org/10.1155/2021/5113453 |
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