期刊文献+

1SG-230型甘蔗深松旋耕联合作业机机架结构参数优化 预览 被引量:1

Structural Parameter Optimization of Frame for 1SG-230 Typed Subsoiling and Rotary Tillage Combined Machine in Sugarcane Field
在线阅读 下载PDF
收藏 分享 导出
摘要 为降低1SG-230型甘蔗深松旋耕联合作业机机架正常工作时的共振,使其具备良好的动态特性,利用UG软件建立机架模型并进行模态分析,得出机架前6阶模态的固有频率、形变量、极值和振型等特征,分析外部激振频率,使机架固有频率远离外部激振频率段,对机架前横梁、后横梁、铲柄保险安装座板、侧板的结构参数进行优化,通过四因素三水平正交试验,确定了机架最优结构参数组合为:前横梁厚度10 mm,后横梁厚度10 mm,铲柄保险安装座板厚度10 mm,侧板厚度14 mm。试验结果表明:1SG-230型甘蔗深松旋耕联合作业机机架优化后质量减少了10.7%,1阶固有频率由27.365 Hz提高至34.683 Hz,共振频率段最小值比变速箱激振频率高10.14 Hz,减小了机架发生共振的可能性,动态特性良好。 In the paper, model of 1SG-230 typed subsoiling and rotary tillage combined machine in sugarcane field was built to calculate the dynamic characteristics by using software UG. After meshing,the modal parameters as well as the modal vibration shapes were calculated through utilizing the NX Nastran. The first 6 modal natural frequencies of the improved frame was within 20.524~35.575 Hz. Then, a reasonable optimization proposal was conducted by the four factors and three levels experiment. The optimization results indicated that after the structure optimization, the front cross member with 10 mm thickness,the rear cross member with 10 mm thickness,the shovel handle insurance installation with 10 mm thickness and the side plate with 14 mm thickness,and the weight of frame was decreased by 10.7%. The first modal natural frequencies of the improved frame was increased to 34.683 Hz, which means the frame could avoid the resonance effectively,which means the frame met the strength requirement and had good dynamic characteristics.
出处 《现代农业装备》 2018年第1期41-47,共7页 Modern Agricultural Equipments
基金 中央级公益性科研院所基本业务费专项(1630132017009) 中央级公益性科研院所基本业务费专项(1630132017001) 2017海南省自然科学基金面上项目(317203) 湛江市财政资金科技专项竞争性分配项目(2016A03020)。
关键词 深松 旋耕 联合作业 机架 动态特性 subsoiling rotary tillage combined working frame dynamic characteristics
作者简介 严晓丽(1993—),女,广西玉林人,硕士研究生,研究方向为农业机械化工程。E-mail:1034317901@qq.com。;通讯作者:李明(1964—),男,广东化州人,研究员,硕士生导师,主要从事热带农业装备方面的研究。E-mail:lm3785899@qq.com。
  • 相关文献

参考文献15

二级参考文献125

共引文献119

同被引文献16

引证文献1

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈