| 履带式拖拉机变速箱组合结构的有限元分析 |
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| 引用本文： | 黄智.履带式拖拉机变速箱组合结构的有限元分析[J].农机化研究,2022,44(3):259-263. |
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| 作者姓名： | 黄智 |
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| 作者单位： | 中山职业技术学院, 广东 中山 528400 |
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| 基金项目： | 广东省自然科学基金项目(2016A030310347)。 |
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| 摘 要： | 为了进一步改善履带式拖拉机的传动性能,利用有限元分析技术展开设计.根据履带式拖拉机的变速箱体内部各轴系的位置关系与承受载荷程度,结合履带式拖拉机田间作业环境特点,充分将组成部件离散化,利用ANSYS进行分析,得到变速箱体压力分布云图,达到预期优化目标并进行性能试验.试验表明:变速箱内部组合结构局部优化后,固有频率试验值...
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| 关 键 词： | 履带式拖拉机 有限元分析 载荷 固有频率 振型特征 |
Finite Element Analysis of the Gearbox Combined Structure of the Crawler Tractor |
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| Huang Zhi.Finite Element Analysis of the Gearbox Combined Structure of the Crawler Tractor[J].Journal of Agricultural Mechanization Research,2022,44(3):259-263. |
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| Authors: | Huang Zhi |
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| Institution: | (Zhongshan Polytechnic,Zhongshan 528400,China) |
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| Abstract: | In order to further improve the transmission performance of the crawler tractor,from the perspective of promoting the rationality of the combination structure of the gearbox,the finite element analysis technology was used to carry out the design.According to the position relationship and the load bearing degree of each shafting in the gearbox of the crawler tractor,combined with the characteristics of the field working environment of the crawler tractor,the components were fully discretized,and the pressure distribution cloud of the gearbox was obtained by using ANSYS.The expected optimization goal was achieved and the performance test was carried.The results showed that the relative error between the natural frequency test value and the finite element simulation value was controlled within 7% after the local optimization of the internal composite structure of gearbox,and the vibrational mode characteristics were well displayed.The error between the test stress value and the stress value under the finite element analysis is small,which could be kept within 10% to meet the requirements of strength and rigidity.The optimization of the combined structure could effectively avoid the resonance area and stress concentration area,and would provide direction for the depth optimization of tractors and other similar agricultural power machinery structures. |
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| Keywords: | crawler tractor finite element analysis load natural frequency the vibrational mode characteristic |
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