本文關鍵詞： 液壓集成塊 響應面法 總壓損失系數 最佳因素水平　出處：《制造技術與機床》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,在單因素分析基礎上,選擇流道交連形式、直徑、刀尖角伸出比為自變量,以總壓損失系數為響應值,運用Box-Benhnken Design(BBD)法設計了3因素3水平響應面設計試驗。以ANSYS FLUENT12.0軟件為工具對集成塊內部流道的三維流場進行了數值仿真計算。結果表明,BBD方法預測的總壓損失系數與實際仿真結果吻合良好,驗證了不同速度工況下直角轉彎流道最佳因素水平取值具有相似性。最優(yōu)參數組合為交連形式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彎流道,總壓損失則可降低64.57%,這為集成塊流道參數優(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】： 燕山大學機械工程學院;燕山大學建筑工程與力學學院;燕山大學先進制造成形技術及裝備國家地方聯合工程研究中心;
【基金】：國家自然科學基金應急管理項目(51641508) 河北省自然科學基金上項目(E2015203271) 燕山大學青年教師自主研究計劃理工A類資助項目(14LCA014);燕山大學校內博土基金項目(B912)
【分類號】：TH137
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本文編號：1495404