| 3WPZ-h00自走式喷杆喷雾机机架的轻量化设计 |
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| 引用本文： | 袁守利,许烁.3WPZ-h00自走式喷杆喷雾机机架的轻量化设计[J].湖北农业科学,2017,56(7). |
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| 作者姓名： | 袁守利 许烁 |
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| 作者单位： | 武汉理工大学汽车工程学院,武汉,430070 |
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| 摘 要： | 为了解决喷杆喷雾机机架因安全裕度过大而引起质量过重的问题,利用Optistruct软件的尺寸优化模块进行轻量化设计.利用CATIA和Hypermesh软件建立整机有限元模型,通过机架的自由模态分析结果与试验结果的对比,验证了机架模型的准确性并分析了机架的振动频率.在有限元软件中对机架系统进行了静态分析,计算了机架系统在工作情况下的应力分布和变形.结合实际情况,采用离散的设计变量,以安全系数为1.3时材料的最大许用应力和变形量为约束条件,对机架进行轻量化设计.结果显示,经过尺寸优化后,机架在满足强度和刚度的情况下,其质量减少了58.1%,达到了轻量化的目的.
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| 关 键 词： | 喷杆喷雾机 有限元 结构优化 轻量化 |
Lightweight Design of Frame for 3WPZ-h00 Self-Propelled Boom Sprayer |
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| YUAN Shou-li,XU Shuo.Lightweight Design of Frame for 3WPZ-h00 Self-Propelled Boom Sprayer[J].Hubei Agricultural Sciences,2017,56(7). |
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| Authors: | YUAN Shou-li XU Shuo |
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| Abstract: | To solve boom sprayer frame overweight problems due to the large safety factor, it use Optistruct size optimization software module to lightweight design. The use of CATIA software and Hypermesh software, the finite element model of the boom sprayer is established. By comparing the frame free modal analysis and experimental results verified the accuracy of the rack model and analyze the frequency of vibration of the frame. In the finite element software, static analysis of the racks, rack systems calculate the stress distribution and deformation under operating conditions. In the finite element software, the frame is static analysis and obtain in the frame work of the stress distribution and deformation. Combined with the actual situ-ation, the use of discrete design variables,with constraints being the maximum allowable material stress when the safety factor of 1.3 and the maximum amount of deformation,the frame are lightweight design. The results show that the size of the rack after optimization, in the case of the frame meeting the strength and stiffness, the frame mass reduction of 58.1%, reaching the purpose of lightweight. |
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| Keywords: | boom sprayer finite element structural optimization lightweight |
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