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結(jié)合數(shù)值模擬與物理實(shí)驗(yàn)的葉片鍛造預(yù)成形拓?fù)鋬?yōu)化設(shè)計(jì)研究
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江蘇科技大學(xué) 先進(jìn)焊接技術(shù)省重點(diǎn)實(shí)驗(yàn)室,上海交通大學(xué),江蘇科技大學(xué) 先進(jìn)焊接技術(shù)省重點(diǎn)實(shí)驗(yàn)室

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TG312

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國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)51005150)


Research on optimal design for preform of blade forging by topological algorithm combined with numerical simulation and physical experiment
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Jiangsu Provincial Key Laboratory of Advanced Welding Technology,Jiangsu University of Science and Technology,,Jiangsu Provincial Key Laboratory of Advanced Welding Technology,Jiangsu University of Science and Technology

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    摘要:

    利用所提出的拓?fù)鋬?yōu)化方法,對(duì)復(fù)雜形狀葉片鍛造的預(yù)成形形狀進(jìn)行了優(yōu)化設(shè)計(jì)。詳細(xì)給出了該方法在三維模式下的優(yōu)化策略、優(yōu)化目標(biāo)、單元增刪準(zhǔn)則、幾何模型處理等關(guān)鍵技術(shù)。以合理精簡(jiǎn)毛坯、提高模腔充填性為綜合優(yōu)化目標(biāo),利用自行開(kāi)發(fā)的優(yōu)化程序,經(jīng)過(guò)十余次的優(yōu)化迭代,獲得了理論上的優(yōu)化結(jié)果。研制了葉片鍛造模具,對(duì)優(yōu)化后的預(yù)成形件進(jìn)行了鍛造成形實(shí)驗(yàn)；利用激光測(cè)量設(shè)備采集了葉片鍛件型面的幾何數(shù)據(jù),并與數(shù)值模擬結(jié)果進(jìn)行了比對(duì)。對(duì)預(yù)成形件制備工藝的可行性進(jìn)行了詳細(xì)討論。研究結(jié)果表明：基于拓?fù)鋬?yōu)化方法所獲得的葉片預(yù)成形設(shè)計(jì)結(jié)果較為理想。

    Abstract:

    Preform design of blade forging has been optimized by utilizing developed topology method in this study. The key techniques of 3D topology optimization include optimization strategy, optimization objectives, element addition and removal criterion, geometry model treatment are given in detail. To fulfill the objective of increased raw material utilizing rate and die-filling rate, a theoretical optimized preform has been obtained after a dozen optimization iterations based on the self-programmed code. Blade forging experiments are implemented to validate the formability of optimized preform form. Aerofoil section profiles extracted from actual forged blade by utilizing laser measure equipment are compared with that from the FE results. The preparation technology of optimized preform is also discussed. A satisfactory optimal result of preform design has been achieved by utilizing the topological method.

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郭平義,陸彬,邵勇.結(jié)合數(shù)值模擬與物理實(shí)驗(yàn)的葉片鍛造預(yù)成形拓?fù)鋬?yōu)化設(shè)計(jì)研究[J].稀有金屬材料與工程,2017,46(2):461~467.[GUO Pingyi, LU Bin, SHAO Yong. Research on optimal design for preform of blade forging by topological algorithm combined with numerical simulation and physical experiment[J]. Rare Metal Materials and Engineering,2017,46(2):461~467.]
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  • 收稿日期:2016-04-15
  • 最后修改日期:2016-05-24
  • 錄用日期:2016-06-12
  • 在線發(fā)布日期: 2017-04-10
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