基于响应面法的液压集成块直角转弯流道优化

发布时间：2018-02-08 12:06

  本文关键词： 液压集成块 响应面法 总压损失系数 最佳因素水平　出处：《制造技术与机床》2017年09期 　论文类型：期刊论文

【摘要】：为优化液压集成块流道工艺参数,在单因素分析基础上,选择流道交连形式、直径、刀尖角伸出比为自变量,以总压损失系数为响应值,运用Box-Benhnken Design(BBD)法设计了3因素3水平响应面设计试验。以ANSYS FLUENT12.0软件为工具对集成块内部流道的三维流场进行了数值仿真计算。结果表明,BBD方法预测的总压损失系数与实际仿真结果吻合良好,验证了不同速度工况下直角转弯流道最佳因素水平取值具有相似性。最优参数组合为交连形式b、流道直径14.64mm以及刀尖角伸出比67.53%,与最不利因素水平相比,总压损失下降11.15%,如采用圆弧过渡直角转弯流道,总压损失则可降低64.57%,这为集成块流道参数优化指明了方向。
[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.
【作者单位】： 燕山大学机械工程学院;燕山大学建筑工程与力学学院;燕山大学先进制造成形技术及装备国家地方联合工程研究中心;
【基金】：国家自然科学基金应急管理项目(51641508) 河北省自然科学基金上项目(E2015203271) 燕山大学青年教师自主研究计划理工A类资助项目(14LCA014);燕山大学校内博土基金项目(B912)
【分类号】：TH137
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