Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method
Crawler rice combine harvester threshing rack excited by different frequencies of multiple working parts would cause strong vibration response. In this paper, the rack-type rice combine harvester threshing rack was taken as research objective, and then the static analysis of the existing threshing r...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/2029501 |
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| _version_ | 1832546799271804928 |
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| author | Haotian Zhang Zhong Tang Yu Li Xin Liu Hui Ren |
| author_facet | Haotian Zhang Zhong Tang Yu Li Xin Liu Hui Ren |
| author_sort | Haotian Zhang |
| collection | DOAJ |
| description | Crawler rice combine harvester threshing rack excited by different frequencies of multiple working parts would cause strong vibration response. In this paper, the rack-type rice combine harvester threshing rack was taken as research objective, and then the static analysis of the existing threshing rack was carried out by ANSYS Finite Element software. The topology of the rack structure was optimized according to the stress and strain distribution of the threshing rack. Based on solving the 6 natural frequencies and mode shapes of the threshing rack of combine harvester, the morphological test of threshing rack was carried out and the reliability of the modal analysis was verified. Finally, the multivibration source was assembled on the rack for simulation to test and verify the optimization effectiveness. Results showed that the 1st to 6th natural frequency of threshing rack after modal optimization could avoid the excitation frequency of the working part. Compared with the original design, the optimized threshing rack had a weight reduction of 13.7%. This study can provide a theoretical reference for the structural design and optimization of combine harvester threshing rack. |
| format | Article |
| id | doaj-art-47b9951d299049239d54c285465bea99 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-47b9951d299049239d54c285465bea992025-02-03T06:47:00ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/20295012029501Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization MethodHaotian Zhang0Zhong Tang1Yu Li2Xin Liu3Hui Ren4Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaKey Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaKey Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaKey Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaKey Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaCrawler rice combine harvester threshing rack excited by different frequencies of multiple working parts would cause strong vibration response. In this paper, the rack-type rice combine harvester threshing rack was taken as research objective, and then the static analysis of the existing threshing rack was carried out by ANSYS Finite Element software. The topology of the rack structure was optimized according to the stress and strain distribution of the threshing rack. Based on solving the 6 natural frequencies and mode shapes of the threshing rack of combine harvester, the morphological test of threshing rack was carried out and the reliability of the modal analysis was verified. Finally, the multivibration source was assembled on the rack for simulation to test and verify the optimization effectiveness. Results showed that the 1st to 6th natural frequency of threshing rack after modal optimization could avoid the excitation frequency of the working part. Compared with the original design, the optimized threshing rack had a weight reduction of 13.7%. This study can provide a theoretical reference for the structural design and optimization of combine harvester threshing rack.http://dx.doi.org/10.1155/2020/2029501 |
| spellingShingle | Haotian Zhang Zhong Tang Yu Li Xin Liu Hui Ren Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method Advances in Materials Science and Engineering |
| title | Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method |
| title_full | Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method |
| title_fullStr | Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method |
| title_full_unstemmed | Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method |
| title_short | Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method |
| title_sort | lightweight threshing rack under multisource excitation based on modal optimization method |
| url | http://dx.doi.org/10.1155/2020/2029501 |
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