通过数值模拟分析和优化工业规模VSM的削性能
Chengguang Tong1, Zuobing Chen1, Chang Liu2
1School of Mechanical and Electronic Engineering, Wuhan University of Technology, Luoshi Road, Wuhan 430070, China.
Materials (Basel, Switzerland)
|July 14, 2023
概括
这项研究优化了使用离散元件方法 (DEM) 和响应表面方法 (RSM) 的垂直磨机 (VSM). 优化的参数显著提高了研磨性能,降低了功耗,增加了碰撞能量.
科学领域:
- 粉末技术技术 粉末技术
- 机械工程 机械工程
- 计算材料科学科学 计算材料科学
背景情况:
- 垂直机 (VSM) 对于工业粉末加工至关重要,包括机械合金和原材料尺寸缩小.
- 优化结构 (机螺旋角度,直径) 和操作 (旋转速度) 参数对于大规模VSM的能源效率和产品质量至关重要.
研究的目的:
- 系统地研究机螺旋角度 (α),直径 (d) 和旋转速度 (n) 对VSM研磨性能的影响.
- 使用响应表面方法 (RSM) 应用多目标优化 (MOD),以提高VSM的效率和产品质量.
主要方法:
- 利用离散元件方法 (DEM) 模拟VSM操作并分析介质粒子相互作用.
- 采用响应表面方法 (RSM) 来实现关键操作和结构参数的多目标优化.
主要成果:
- 在轴附近确定了一个媒体旋现象,受α,d和n的影响.
- 通过DEM-RSM优化,机功耗 (P) 降低了8.09%,媒介碰撞能量 (E) 增加了9.53%.
- 在能量转换率 (R) 中实现了20.70%的增长,提高了碰撞强度和频率.
结论:
- 集成的DEM-RSM方法有效地优化VSM参数,以提高研磨性能.
- 优化参数导致能源消耗大幅减少,磨砂效率提高.
- 该方法提供了一个框架,用于根据特定的VSM设计确定最佳运行条件.
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