基于ANSYS Workbench的新型轨行式混凝土搅拌车搅拌筒优化设计
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摘要
以6 m3轨行式混凝土搅拌车为例,介绍了搅拌车结构组成。利用Solid Works软件建立了搅拌筒的结构模型,借助ANSYS软件对搅拌筒进行应力和变形分析,结果显示:搅拌筒的结构不能满足材料的强度和刚度要求。通过结构优化,最大应力减少了大约24%,实现了延长搅拌筒使用寿命的目的。通过目标驱动优化,获得了筒体厚度、载荷与最大等效应力最小值之间的关系。
Taking 6 m3 track type concrete mixing truck as the example, the structure of the mixing truck was introduced.The structure model of the mixing barrel was established using Solid Works software. Stress and displacement analysis of the mixing barrel were performed using ANSYS software. It was shown that this model didn′t meet the material strength and stiffness requirement. After the structure optimization, the maximum stress reduced about 24%, and the target of expand the service life of the mixing barrel was realized. The relationships between barrel thickness, load and the minimum value of the maximum equivalent stress were obtained through the target driving optimization.
Taking 6 m3 track type concrete mixing truck as the example, the structure of the mixing truck was introduced.The structure model of the mixing barrel was established using Solid Works software. Stress and displacement analysis of the mixing barrel were performed using ANSYS software. It was shown that this model didn′t meet the material strength and stiffness requirement. After the structure optimization, the maximum stress reduced about 24%, and the target of expand the service life of the mixing barrel was realized. The relationships between barrel thickness, load and the minimum value of the maximum equivalent stress were obtained through the target driving optimization.
引文
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[3]商跃进,王红.有限元原理与ANSYS应用指南[M].北京:清华大学出版社,2012:238-245.
[4]谢元丕,冯刚.ANSYS三维实体单元与板壳单元的组合建模研究[J].机械设计,2009,26(4):5-7.
[5]刘冰,杨勇,孟昭渝溪,等.基于外筒旋转与叶片振动的新型干混砂浆混合设备设计[J].机械设计与研究,2011,27(6):99-101.
[6]肖弦,唐卫东.搅拌筒破坏原因的有限元分析和结构改进措施[J].机械研究与应用,2006,19(5):96-98.
[7]成大先.机械设计手册(第1卷)[M].5版.北京:化学工业出版社,2008:101-109.
[8]杜伟,王勇,刘树林.基于ANSYS Workbench的高温高压井筒设计和分析[J].机械设计,2013,30(4):62-65.