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消失模鑄造充型過程的人工神經(jīng)網(wǎng)絡(luò)算法
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TG249.6 TP183

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國家自然科學(xué)基金重大項(xiàng)目(59990470-3)，國家重點(diǎn)基礎(chǔ)研究規(guī)劃項(xiàng)目(G2000067208-3)


Modeling of Mold Filling in Lost Foam Casting Based on Artificial Neural Network Method
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    摘要:

    用人工神經(jīng)網(wǎng)絡(luò)算法計算了消失模鑄造充型過程中不同時刻液態(tài)金屬—模樣界面的位置。通過實(shí)驗(yàn)對該算法進(jìn)行了驗(yàn)證，模擬計算結(jié)果與實(shí)際測試結(jié)果無論在充型形態(tài)還是充型時間上都符合得較好。根據(jù)得出的界面位置及邊界條件，通過求解N—S方程和能量方程計算了消失模鑄造充型過程的流場及溫度場。討論了該計算模型在消失模鑄造過程模擬仿真中的應(yīng)用。

    Abstract:

    Artificial neural network technique was applied to calculate the locations of the metal front at time interva ls in the lost foam casting(LFC).Experiments have been conducted to validate the model.The results of simulation and experiments are consis tent,both in filling pattern and sequence.The fluid flow and the temperature distribution during the mold filling process of LFC w ere calculated through the numerical solution of the N -S and energy equations based on the calculate d surface positions and boundary con ditions.The application of the model on the computer simulation of LFC was discussed.

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李鋒軍 柳百成 沈厚發(fā) 禹建麗.消失模鑄造充型過程的人工神經(jīng)網(wǎng)絡(luò)算法[J].稀有金屬材料與工程,2003,(4):268~271.[Li Fengjun, Liu Baicheng, Shen Houfa, Yu Jianli . Modeling of Mold Filling in Lost Foam Casting Based on Artificial Neural Network Method[J]. Rare Metal Materials and Engineering,2003,(4):268~271.]
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  • 最后修改日期:2002-09-23
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