| 提高水力机械抗磨蚀性能的喷丸工艺数值分析 |
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| 引用本文： | 吴钢,侯占忠.提高水力机械抗磨蚀性能的喷丸工艺数值分析[J].水电能源科学,2006,24(1):1-3. |
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| 作者姓名： | 吴钢 侯占忠 |
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| 作者单位： | 华中科技大学,能源与动力工程学院,湖北,武汉,430074 |
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| 摘 要： | 针对流体机械磨蚀特点,对喷丸工艺引起的残余应力场进行数值模拟。运用有限单元法对弹丸撞击后钢板材料表面应力分布进行了数值计算。讨论了弹丸直径、喷射速度与残余应力的关系,选择几组典型参数比较,分析不同情况下喷丸对局部变形的影响,进而探讨了水力机械防磨蚀的喷丸强化工艺参数的选择。
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| 关 键 词： | 水力机械 表面强化 喷丸 有限元分析 残余应力 |
| 文章编号： | 1000-7709（2006）01-0001-03 |
| 收稿时间： | 2006-01-12 |
| 修稿时间： | 2006年1月12日 |
Finite Element Analysis of Treatment Parameters of Shot-Peening for Hydraulic Machinery |
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| WU Gang,HOU Zhanzhong.Finite Element Analysis of Treatment Parameters of Shot-Peening for Hydraulic Machinery[J].International Journal Hydroelectric Energy,2006,24(1):1-3. |
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| Authors: | WU Gang HOU Zhanzhong |
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| Abstract: | Fatigue is key to the abrasion in hydraulic machinery.Shot peening is an effective way ofimproving surface fatigue strength.This investigation is devoted to the modelling and simulation of the residual stress field resulting from the shot-peening process.Stress distribution of a plate after impactis examined using the finite element method.The effect of the shot size and velocity upon the residual stresses isdiscussed.Through comparing the effect in different conditions,concerned with the plastic zone deformation,some factors must be considered in choosing the optimal treatment parameters. |
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| Keywords: | hydraulic machinery surface strengthening shot-peening finite element analysis residual stresses |
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