基于有限元分析的卷盘式喷灌机双喷枪支撑结构研究
|
摘要
针对卷盘式喷灌机单根悬臂梁式双喷枪支撑结构在加长悬臂时刚度不足的问题,利用ANSYS软件构建有限元模型进行双喷枪支撑结构的强度和刚度分析,首先分析单悬臂梁支撑结构的悬臂极限长度,在此基础上,将单根悬臂梁支撑结构改进成桁架式悬臂梁支撑结构,再利用ANSYS软件分析改进后结构的极限长度,结果表明:单根悬臂梁式双喷枪支撑结构的极限臂长为3.4 m,改进后结构的极限长度为21 m,表明改进后支撑结构使悬臂长度显著增加。最后,根据ANSYS机构设计结果,制作了桁架式悬臂梁支撑结构实物,该实体已经应用于实践。同时,研究结果可为指导用户制作不同长度双悬臂支撑结构。
Aiming at the problem of insufficient stiffness of single cantilever beam double spraying gun supporting structure of hard hose traveler when the cantilever is lengthened, the strength and stiffness of the double spraying gun supporting structure are analyzed by using the finite element model built based on ANSYS. Firstly, the ultimate cantilever length of single cantilever beam bracing structure is analyzed. On the basis, the single cantilever beam bracing structure is improved into truss type cantilever beam bracing structure. Then the new structure is analyzed by ANSYS. The results show that the limiting length of original structure is 3.4 meters, while the new is 21 meters, indicating that the improved support structure makes the cantilever length increase significantly. Finally, the truss type cantilever beam supporting structure is manufactured based on ANSYS, which has been applied in practice. At the same time, the results of this study can be used to guide users to manufacture different lengths of double cantilever supporting structures.
Aiming at the problem of insufficient stiffness of single cantilever beam double spraying gun supporting structure of hard hose traveler when the cantilever is lengthened, the strength and stiffness of the double spraying gun supporting structure are analyzed by using the finite element model built based on ANSYS. Firstly, the ultimate cantilever length of single cantilever beam bracing structure is analyzed. On the basis, the single cantilever beam bracing structure is improved into truss type cantilever beam bracing structure. Then the new structure is analyzed by ANSYS. The results show that the limiting length of original structure is 3.4 meters, while the new is 21 meters, indicating that the improved support structure makes the cantilever length increase significantly. Finally, the truss type cantilever beam supporting structure is manufactured based on ANSYS, which has been applied in practice. At the same time, the results of this study can be used to guide users to manufacture different lengths of double cantilever supporting structures.
引文
[1] 许一飞, 许炳华.喷灌机原理、设计、应用[M]. 北京:中国农业机械出版社,1989.
[2] 陈亚新. 引进的绞盘式喷灌机性能试验分析及对我国研制的意见[J]. 内蒙古农牧学院学报, 1982,(1):179-194.
[3] Smith R, Baillie C, Gordon G. Performance of travelling gun irrigation machines[C]//Proceedings of the Conference of the Australian Society of Sugar Cane Technologists, Cairns, 2002:235-240.
[4] 喻黎明, 吴普特, 牛文全. 喷头组合间距、工作压力和布置形式对喷灌均匀系数的影响[J]. 水土保持研究,2002,9(1):154-157.
[5] 葛茂生, 吴普特, 朱德兰. 卷盘式喷灌机移动喷洒均匀度计算模型构建与应用[J]. 农业工程学报,2016, 32(11):130-136.
[6] 葛茂生. 太阳能驱动卷盘式喷灌机灌水质量与优化设计研究[D].陕西杨凌:西北农林科技大学, 2018:1-9.
[7] 胡德民. 喷灌机联动双喷枪设计[J]. 农业化研究,2010,32(7):146-148.
[8] 丁强. 卷盘式喷灌机的使用技术[J]. 农机使用与维修,2013,(1):43-44.
[2] 陈亚新. 引进的绞盘式喷灌机性能试验分析及对我国研制的意见[J]. 内蒙古农牧学院学报, 1982,(1):179-194.
[3] Smith R, Baillie C, Gordon G. Performance of travelling gun irrigation machines[C]//Proceedings of the Conference of the Australian Society of Sugar Cane Technologists, Cairns, 2002:235-240.
[4] 喻黎明, 吴普特, 牛文全. 喷头组合间距、工作压力和布置形式对喷灌均匀系数的影响[J]. 水土保持研究,2002,9(1):154-157.
[5] 葛茂生, 吴普特, 朱德兰. 卷盘式喷灌机移动喷洒均匀度计算模型构建与应用[J]. 农业工程学报,2016, 32(11):130-136.
[6] 葛茂生. 太阳能驱动卷盘式喷灌机灌水质量与优化设计研究[D].陕西杨凌:西北农林科技大学, 2018:1-9.
[7] 胡德民. 喷灌机联动双喷枪设计[J]. 农业化研究,2010,32(7):146-148.
[8] 丁强. 卷盘式喷灌机的使用技术[J]. 农机使用与维修,2013,(1):43-44.