| Optimization of the angle of artichoke harvester's second-order flat shovel based on mathematica |
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| DOI：10.7606/j.issn.1000-7601.2017.02.45 |
| Key Words: artichoke harvester second order flat shovel angle multi-objective optimal design strain analysis |
| Author Name | Affiliation | | LI Jin-chuan | College of Mechanical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China | | ZHENG Yi-min | Service Center of Career and Employment Guidance, Ningxia University, Yinchuan, Ningxia 750021, China | | SHANG Xin | College of Mechanical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China | | MU Song | College of Mechanical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China | | SHI Xin-peng | College of Mechanical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China |
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| Abstract: |
| In order to further improve Chinese artichoke harvester’s second-order flat shovel, a multi-objective optimization model of second-order flat shovel was established. A soil breaking model and a resistance model of digging shovel were introduced in this model. With the help of the concept of virtual angle and Mathematica, the model was established with the first-order plane angle being 20.44°, the second-order plane angle being 43.64°, the first-order plane height being 0.12 m, and the virtual plane angle being 30.53°. This theoretically digging shovel model had the minimum force and the maximal effective soil shear. Comparison and analysis of the two second-order shovel from the perspective of theory and software simulation were made. The results showed that the shovel length, digging resistance, the maximum deformation, and stain of optimized digging shovel were decreasing, which indicated this optimal design was satisfactory. This optimal model provided a theoretical support and enlightenment for the design of digging shovel with high soil-breaking ability. |
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