期刊论文

Numerical Simulation Research on Strengthening Effect of Shot Peening at Identical Intensity

中文

表面技术

1001-3660

2018

47

9

42-48

10.16490/j.cnki.issn.1001-3660.2018.09.006

国家自然科学基金项目(51575117) 国家自然科学基金(民航联合基金)(61179051) 湖南省教育厅项目(15C1183)。

本校为第一机构

目的 优化喷丸工艺参数的匹配方式,进一步提升喷丸强化效果.方法 采用预定义场和基于移动矢量的快速建模方法,实现了受喷构件表面100％表面覆盖率的喷丸模拟,并借助三维喷丸有限元模型研究了不同喷丸工艺参数匹配方式对受喷构件表面粗糙度、弹丸撞击时的能量转变方式的影响.结果 当喷丸强度均为0.35 mmN时,四种喷丸工艺参数匹配方式对应的表面粗糙度分别为3.156、2.760、2.249、2.081μm,应力集中系数分别为1.205、1.142、1.103、1.071,动能消耗率分别为89.94％、85.53％、82.86％、80.04％,应变能转化率分别为7.99％、9.67％、11.82％、14.29％.结论 与其他喷丸工艺参数匹配方式相比,所用喷丸工...

The work aims to optimize matching method of shot peening process parameters,and to further improve strengthening effect of shot peening.Predefined field and moving vector-based rapid modeling method were adopted to realize simulation of shot peening which covered 100% surface of the peed component.The influences of matching method of shot peening process parameters on surface roughness of peened component and conversion mode of impact energy were researched by using a 3D finite element model (FEM).Provided with shot peening intensity of 0.35 m...