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基于流固耦合的多級潛水泵葉輪結(jié)構(gòu)強度分析
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國家自然科學(xué)基金資助項目(51079063),;江蘇省自然科學(xué)基金資助項目(BK2011503),;國家博士后科學(xué)基金資助項目(2011M500117)


Structural Strength Analysis of Multistage Submersible Pump Impeller Based on Fluid-structure Interaction
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    摘要:

    利用ANSYS的Workbench平臺,通過單向流固耦合模型對葉輪的應(yīng)力應(yīng)變進行了數(shù)值研究,。分別計算出葉輪受流體壓力及離心力載荷作用所產(chǎn)生的最大等效應(yīng)力及變形量,進一步獲得2種載荷共同作用時的效果,。在此基礎(chǔ)上,,研究了葉輪最大等效應(yīng)力及變形量隨流量的變化特征,并對葉輪進行結(jié)構(gòu)強度校核,。結(jié)果表明,,葉輪最大等效應(yīng)力及變形量主要受流體壓力作用影響,而受離心力的影響較小,。當(dāng)流量逐漸增加,,葉輪最大等效應(yīng)力先增大后減小,葉輪變形量則逐漸減小,。強度校核結(jié)果表明,,葉輪符合強度要求。

    Abstract:

    To accurately figure out the stress and the deformation of the impeller, the one-way fluid-structure interaction was performed, utilizing the ANSYS Workbench. The pressure of the fluid flow and the centrifugal force imposed on the impeller respectively were used to evaluate the maximum equivalent stress and deformation of the impeller. Then the effect of two loads jointly imposed on the impeller was obtained. Based on these procedures, the stress and deformation behavior under different flow rates were numerically investigated. And the structural strength of the impeller was also checked. The results showed that the maximum equivalent stress and the deformation were primarily determined by the fluid flow pressure, and were less affected by the centrifugal force. With increasing flow rate, the maximum equivalent stress increased gradually and then decreased, while the deformation gradually decreased. The strength check result showed that the impeller could meet the strength requirement.

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施衛(wèi)東,徐燕,張啟華,陸偉剛,周嶺.基于流固耦合的多級潛水泵葉輪結(jié)構(gòu)強度分析[J].農(nóng)業(yè)機械學(xué)報,2013,44(5):70-73,100. Shi Weidong, Xu Yan, Zhang Qihua, Lu Weigang, Zhou Ling. Structural Strength Analysis of Multistage Submersible Pump Impeller Based on Fluid-structure Interaction[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(5):70-73,100.

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  • 在線發(fā)布日期: 2013-04-28
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