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多輥下壓式拉形柔性浮動(dòng)夾持?jǐn)?shù)值模擬與實(shí)驗(yàn)
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歐盟第六框架協(xié)議計(jì)劃航空航天領(lǐng)域國際合作資助項(xiàng)目 (ASTS-CT-2006-030877)


Numerical Simulation and Experiment of Flexible Floating Clamping in Multi-roll Stretch Forming Process
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    摘要:

    采用ANSYS/LS-DYNA對(duì)使用柔性浮動(dòng)夾持方式的多輥下壓式拉形過程進(jìn)行了數(shù)值模擬,，驗(yàn)證了柔性浮動(dòng)夾持的效果，分析了所得成形件在拉形過程中的應(yīng)力,、應(yīng)變分布,。結(jié)果表明：柔性浮動(dòng)夾持方式適用于多輥下壓式拉形,，能夠?qū)崿F(xiàn)柔性,、浮動(dòng)夾持的效果；使用柔性浮動(dòng)夾持時(shí)所得成形件應(yīng)力,、應(yīng)變分布均勻,，成形效果較好。完成了相關(guān)實(shí)驗(yàn)驗(yàn)證,，對(duì)數(shù)值模擬結(jié)果和實(shí)驗(yàn)結(jié)果進(jìn)行了對(duì)比,，結(jié)果表明：數(shù)值模擬結(jié)果與實(shí)驗(yàn)結(jié)果吻合較好。

    Abstract:

    The multi-roll stretch forming process of saddle-shaped surface parts with flexible floating clamping mode were simulated by ANSYS/LS-DYNA. The effect of flexible floating clamping mode was verified. The distribution of stress and strain of formed parts was analyzed. Results indicated that the flexible floating clamping mode was suitable for the process of the multi roll stretch forming process. The stress and strain of the formed part distributed uniformly. Finally, the corresponding experiment was accomplished. When comparing the results of the numerical simulation and that of the experiment, it was concluded that the two types of results were nearly consistent.

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張昊晗,李明哲,付文智,彭赫力,馮朋曉.多輥下壓式拉形柔性浮動(dòng)夾持?jǐn)?shù)值模擬與實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(6):230-234. Zhang Haohan, Li Mingzhe, Fu Wenzhi, Peng Heli, Feng Pengxiao. Numerical Simulation and Experiment of Flexible Floating Clamping in Multi-roll Stretch Forming Process[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(6):230-234.

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  • 在線發(fā)布日期: 2012-06-19
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