基于Kriging模型的双密封圈竹节接头多目标优化
Multi-objective Optimization of a Double-seal Spigot Joint Based on Kriging Model
为研究双密封圈竹节接头多目标优化,建立了2D有限元模型。利用材料双折线塑性本构、Mooney-Rivlin5橡胶本构,生成L25正交试验仿真数据,拟合Kriging高斯回归模型。探究接头端面外径(x1)、密封槽外径(x2)、竹节外径(x3)、密封槽宽度(x4)、竹节端部直线段(x5)5个参数与插入力(y1)、最大接触应力(y2)、接头最大等效应力(y3)、竹节头密封有效接触宽度(y4)的关系。结果表明:x1、x3、x5对y4最为敏感。交互作用显示,x5在中值时,y4随x1、x3的增大呈显著单调上升趋势。x3在中值时,y4随x1增大和x5减小而增加。x1在中值时,y4随x3增大和x5减小而增加。利用加权求和遗传算法多目标寻优,优化结果分别为:y1=902.72 N,y2=54.18 MPa,y3=16.69 MPa,y4=2.30 mm。最优解x1=19.00 mm,x2=22.20 mm,x3=25.20 mm,x4=2.10 mm,x5=0.84 mm。与原始数据相比,多目标优化后y1增加5.86%,y2增加13.66%,y3降低24.24%,y4增加12.75%。
To study the multi-objective optimization of the double-seal spigot joint, a 2D finite element model was established. The bilinear plastic constitutive model for materials and the Mooney-Rivlin 5-parameter rubber constitutive model were employed to generate L25 orthogonal experimental simulation data, based on which the Kriging Gaussian regression model was fitted. The relationships between five parameters—the end face outer diameter of the joint (x1), the outer diameter of the seal groove (x2), the outer diameter of the bamboo joint (x3), the width of the seal groove (x4), and the straight segment at the end of the bamboo joint (x5)—and four responses—the insertion force (y1), the maximum contact stress (y2), the maximum equivalent stress of the joint (y3), and the effective contact width of the bamboo joint seal (y4)—were investigated. The results showed that x1, x3, and x5 were the most sensitive to y4. Interaction analysis revealed that when x5 was at its median value, y4 increased significantly and monotonically with increasing x1 and x3. When x3 was at its median value, y4 increased with increasing x1 and decreasing x5. When x1 was at its median value, y4 increased with increasing x3 and decreasing x5. Multi-objective optimization was performed using the weighted sum genetic algorithm. The optimized results were as follows: y1=902.72 N, y2=54.18 MPa, y3=16.69 MPa, and y4=2.30 mm. The optimal solution was x1=19.00 mm, x2=22.20 mm, x3=25.20 mm, x4=2.10 mm, and x5=0.84 mm. Compared with the original data, the multi-objective optimization achieved a 5.86% increase in y1, a 13.66% increase in y2, a 24.24% decrease in y3, and a 12.75% increase in y4.
| [1] |
许玉涵, 崔颖, 冯文轩, |
| [2] |
夏芝玮, 钱进, 陈果. 带装配偏差下的飞机管路连接件密封性能分析[J]. 中国工程机械学报, 2024, 22(3): 341-345. |
| [3] |
钱进, 陈果, 赵正大, |
| [4] |
杜双言, 张伟, 瞿品祥, |
| [5] |
夏芝玮, 樊新田, 赵旭升, |
| [6] |
张旭, 夏芝玮, 樊新田, |
| [7] |
张毅, 曹学鹏. 基于正交试验的深海Y形密封圈结构优化[J]. 润滑与密封, 2023, 48(7): 153-158. |
| [8] |
代俊男. 基于预插值与聚类优化Kriging的结构可靠性分析方法[D]. 常州: 江苏理工学院, 2025. |
| [9] |
王龙滟, 叶成君, 徐健, |
| [10] |
王相兵, 苏振恒, 周航. 基于Kriging响应面的门式起重机刚性支腿多目标优化设计[J]. 机械设计与研究, 2025, 41(6): 370-376. |
| [11] |
周霞, 黄剑. 基于ANSYS的热力管道用橡胶密封圈优化设计与分析[J]. 润滑与密封, 2024, 49(4): 189-196. |
| [12] |
李涛, 薛志武. 新型L形密封圈密封性能有限元分析[J]. 润滑与密封, 2024, 49(8): 189-196. |
| [13] |
马天宇, 田石柱. 基于双折线模型更新的桥梁框架墩混合试验[J]. 广西大学学报(自然科学版), 2020, 45(1): 17-24. |
| [14] |
徐正杰. 多层波纹管爆破特性的实验与数值分析[J]. 塑料科技, 2025, 53(4): 151-155. |
| [15] |
彭扬林, 陈书赢, 闫慧龙, |
| [16] |
张毅飞, 孟维园, 巩加玉, |
| [17] |
富绪光, 陈江弥, 罗震宇. 往复运动密封装置中O形橡胶密封圈的滑动摩擦力有限元分析[J]. 橡胶工业, 2021, 68(5): 332-338. |
| [18] |
华文, 董炜, 杨滢, |
| [19] |
孟繁龙, 董金善. 基于多目标遗传算法的真空热处理设备密封性能优化[J]. 润滑与密封, 2025, 50(12): 112-121. |
| [20] |
高俊峰, 李伟, 杨玲玲, |
| [21] |
毕恩哲, 李双喜, 沙廉翔, |
| [22] |
祝铭志, 颜廉忠, 李旭阳, |
| [23] |
潘为民, 候森, 时可可, |
| [24] |
向红娓, 张冠勇, 黄胜, |
国家自然科学基金面上项目(52475063)
上海市松江区科普项目(2025SJKPW005)
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