| 铸件充型凝固过程数值模拟研究 |
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| 引用本文： | 熊守美,柳百成,许庆彦,康进武. 铸件充型凝固过程数值模拟研究[J]. 现代铸铁, 2002, 0(1): 16-20 |
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| 作者姓名： | 熊守美 柳百成 许庆彦 康进武 |
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| 作者单位： | 清华大学机械工程系,北京100084 |
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| 基金项目： | 自然科学重大基金(59990470-3)，国家重点基础研究项目(G2000067208-3)，清华大学“九八五”项目。 |
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| 摘 要： | 概述了铸件充型及凝固过程数值模拟研究的最新进展。采用并行计算技术，对压铸充型模拟过程数值计算方法进行了改进。提出了用动态膨胀收缩累积法来预测球墨铸铁缩孔缺陷，在球铁件上进行了缩孔形成的模拟和工艺改进。采用的有限差分与有限元相结合的方法模拟铸件应力场。实现了有限差分温度载荷到有限元模型的自动转换与传递，并采用有限元法计算出铸件应力场。
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| 关 键 词： | 铸件 充型 凝固过程 数值模拟 |
| 文章编号： | 1003-8345(2002)01-0016-05 |
| 修稿时间： | 2001-04-26 |
Progress on numerical simulation of mold filling and solidification processes of shaped castings |
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| XIONG Shou-mei,LIU Bai-cheng,XU Qing-yan,KAND Jing-wu. Progress on numerical simulation of mold filling and solidification processes of shaped castings[J]. Modern Cast Iron, 2002, 0(1): 16-20 |
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| Authors: | XIONG Shou-mei LIU Bai-cheng XU Qing-yan KAND Jing-wu |
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| Abstract: | The latest progress on numerical simulation of mold filling and solidification processes of shapedcasting was reviewed.The composed splitting method was implemented in solidification simulation and a new method was proposed to optimize the computational area. The computational efficiency was studied by practical applications. A new criterion was proposed to predict the shrinkage defect of S.G. iron castings and a combined FDM/FEM method was used to simulate the thermal stresses of castings. |
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| Keywords: | casting mold-filling solidification numerical simulation |
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