本文關(guān)鍵詞： 液壓集成塊 響應(yīng)面法 總壓損失系數(shù) 最佳因素水平　出處：《制造技術(shù)與機(jī)床》2017年09期 　論文類型：期刊論文

【摘要】：為優(yōu)化液壓集成塊流道工藝參數(shù),在單因素分析基礎(chǔ)上,選擇流道交連形式、直徑、刀尖角伸出比為自變量,以總壓損失系數(shù)為響應(yīng)值,運(yùn)用Box-Benhnken Design(BBD)法設(shè)計(jì)了3因素3水平響應(yīng)面設(shè)計(jì)試驗(yàn)。以ANSYS FLUENT12.0軟件為工具對(duì)集成塊內(nèi)部流道的三維流場(chǎng)進(jìn)行了數(shù)值仿真計(jì)算。結(jié)果表明,BBD方法預(yù)測(cè)的總壓損失系數(shù)與實(shí)際仿真結(jié)果吻合良好,驗(yàn)證了不同速度工況下直角轉(zhuǎn)彎流道最佳因素水平取值具有相似性。最優(yōu)參數(shù)組合為交連形式b、流道直徑14.64mm以及刀尖角伸出比67.53%,與最不利因素水平相比,總壓損失下降11.15%,如采用圓弧過渡直角轉(zhuǎn)彎流道,總壓損失則可降低64.57%,這為集成塊流道參數(shù)優(yōu)化指明了方向。
[Abstract]:In order to optimize the process parameters of hydraulic manifold block runner, on the basis of single factor analysis, the flow channel intersecting form, diameter, knife angle extension ratio are selected as independent variables, and the total pressure loss coefficient is taken as the response value. Three factors and three horizontal response surface design tests are designed by using Box-Benhnken design method. The numerical simulation of 3D flow field in the inner channel of the integrated block is carried out by using ANSYS FLUENT12.0 software. The results show that the total pressure loss coefficient and the total pressure loss coefficient predicted by the ANSYS method are better than that of the ANSYS method. The simulation results agree well with each other. It is verified that the optimum factor level of right-angle turn is similar in different speed conditions, and the optimum parameter combination is the intersecting form b, the diameter of the runner is 14.64mm, and the knife angle extension ratio is 67.53, which is compared with the most disadvantageous factor level. The total pressure loss is reduced by 11.15%. If the circular arc transition right angle turn channel is adopted, the total pressure loss can be reduced by 64.57, which indicates the direction for the optimization of the flow channel parameters of the integrated block.
【作者單位】： 燕山大學(xué)機(jī)械工程學(xué)院;燕山大學(xué)建筑工程與力學(xué)學(xué)院;燕山大學(xué)先進(jìn)制造成形技術(shù)及裝備國(guó)家地方聯(lián)合工程研究中心;
【基金】：國(guó)家自然科學(xué)基金應(yīng)急管理項(xiàng)目(51641508) 河北省自然科學(xué)基金上項(xiàng)目(E2015203271) 燕山大學(xué)青年教師自主研究計(jì)劃理工A類資助項(xiàng)目(14LCA014);燕山大學(xué)校內(nèi)博土基金項(xiàng)目(B912)
【分類號(hào)】：TH137
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本文編號(hào)：1495404