Three-Dimensional Geometrical Modelling of Wild Boar Head by Reverse Engineering Technology

Xu, Liang; Lin, Min-xu; Li, Jianqiao; Wang, Zhaoliang; Chirende, Benard

doi:10.1016/s1672-6529(08)60010-4

Cited by 19 publications

(13 citation statements)

References 4 publications

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“…Soil-engaging tool designs based on geometrical structures of soil-burrowing animals were found to have the distinguished performance of low forward resistance against soil [ 18 ], and it was proved that the bionic designs imitating the geometrical features of the soil insect's digging limbs had remarkable effects on the performance of soil-engaging tools [ 19 – 22 ]. Hence, some characteristics of soil insects that have highly efficient soil-digging abilities have been carried out by researchers and have shown to successfully improve the working efficiency of soil-engaging components [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Innovative Design and Performance Evaluation of Bionic Imprinting Toothed Wheel

Zhang

Wang

Jin

et al. 2018

Applied Bionics and Biomechanics

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A highly efficient soil-burrowing dung beetle possesses an intricate outer contour curve on its foreleg end-tooth. This study was carried out based on evidence that this special outer contour curve has the potential of reducing soil penetration resistance and could enhance soil-burrowing efficiency. A toothed wheel is a typical agricultural implement for soil imprinting, to increase its working efficiency; the approach of the bionic geometrical structure was utilized to optimize the innovative shape of imprinting toothed wheel. Characteristics in the dung beetle's foreleg end-tooth were extracted and studied by the edge detection technique. Then, this special outer contour curve was modeled by a nine-order polynomial function and used for the innovative design of imprinting the tooth's cutting edge. Both the conventional and bionic teeth were manufactured, and traction tests in a soil bin were conducted. Taking required draft force and volume of imprinted microbasin as the evaluating indexes, operating efficiency and quality of different toothed wheels were compared and investigated. Results indicate that compared with the conventional toothed wheel, a bionic toothed wheel possesses a better forward resistance reduction property against soil and, meanwhile, can enhance the quality of soil imprinting by increasing the volume of the created micro-basin.

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Section: Introductionmentioning

confidence: 99%

Innovative Design and Performance Evaluation of Bionic Imprinting Toothed Wheel

Zhang

Wang

Jin

et al. 2018

Applied Bionics and Biomechanics

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“…9,10 Yang et al 11 carried out researches on the high-temperature features in friction and wear of W9Cr4V high-speed steel concave bionic non-smooth surfaces after laser processing. L Xu et al 12 developed a new type of bionic plow after obtaining the information of the three-dimensional (3D) geometric surfaces of boar heads. K Gao et al 13 designed the bionic diamond drilling bits based on the non-smooth theory of the dung beetle head, thus to increase the speed and service life of drilling bits.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of sealing performance of bearing rings of roller-cone bits based on grid-shaped bionic non-smooth surface

Zeng

Zhou

2018

Advances in Mechanical Engineering

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Based on the bionic non-smooth surface theory, this article carries out (1) design of the structure of bionic non-smooth sealing rings and toothed bars of the sealing structure and (2) finite element simulation study on the bionic non-smooth surface structure of roller-cone bits. The result shows that (1) when the parameter Y is equal to the rack angles, the maximum pressure of the Type B is smaller than that of the Type A, while the equivalent stress of the Type A is smaller than that of the Type B; when the parameter Y is equal to the tooth distribution, the maximum pressure and the equivalent stress of the rack angle of 30°are smaller than that of the rack angle of 20°; and when the rack angle is equal to the tooth distribution, the maximum contact pressure and the equivalent stress of the tooth decrease with the increase in the parameter Y.(2) Compared with the O-shaped sealing rings, the new tooth bars avoid the problem of over-large contact area. (3) The grid-shaped sealing structure can increase the wear resistance of rubber rings and delay their wear and aging, thus improving their service life.

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“…A ridger is one of the most important soil-engaging components on agricultural implements such as a combined tillage machine, soil preparation ridging machine, and fertilizer applicator, applied widespreadly in both primary and secondary tillages [ 14 , 15 ]. This paper takes a ridger as the study object leading to the designing of a low-resistance ridger according to principles of bionics.…”

Section: Introductionmentioning

confidence: 99%

Bionic Design for Reducing Adhesive Resistance of the Ridger Inspired by a Boar’s Head

Yan

Chirende

et al. 2017

Applied Bionics and Biomechanics

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The main feature of the boar's head used to root around for food is the front part, which is similar to the ridger in terms of function, load, and environment. In this paper, the boar's head was selected as the biological prototype for developing a new ridger. The point cloud of the head was captured by a 3D scanner, and then, the head surface was reconstructed using 3D coordinates. The characteristic curves of the front part of the boar's head were extracted, and then, five cross-sectional curves and one vertical section curve were fitted. Based on the fitted curves, five kinds of bionic ridgers were designed. The penetrating resistances of the bionic ridgers and traditional ridger were tested at different speeds in an indoor soil bin. The test results showed that bionic ridger B had the best penetrating resistance reduction ratio of 16.67% at 4.2 km/h velocity. In order to further evaluate the performance of the best bionic ridger (bionic ridger B), both the bionic ridger and traditional ridger were tested in a field under the same working conditions. The field results indicate that the bionic ridger reduces penetrating resistance by 6.91% compared to the traditional ridger, and the test results validate that the bionic ridger has an effect on reducing penetrating resistance.

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Three-Dimensional Geometrical Modelling of Wild Boar Head by Reverse Engineering Technology

Cited by 19 publications

References 4 publications

Innovative Design and Performance Evaluation of Bionic Imprinting Toothed Wheel

Innovative Design and Performance Evaluation of Bionic Imprinting Toothed Wheel

Evaluation of sealing performance of bearing rings of roller-cone bits based on grid-shaped bionic non-smooth surface

Bionic Design for Reducing Adhesive Resistance of the Ridger Inspired by a Boar’s Head

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