裂解连杆接合面三维重构及其强度与刚度

doi:10.13229/j.cnki.jdxbgxb20170615

摘要/Abstract

摘要： 为研究裂解连杆性能,将裂解连杆加工实验、三维曲面重构以及有限元模拟相结合。借助连杆大头断裂剖分实验获得真实断裂接合面,通过逆向工程进行断裂接合面重构,进而建立真实的裂解连杆三维几何模型,运用有限元模拟,对比传统平切口连杆,对裂解连杆进行危险工况下的强度和刚度研究。结果表明:裂解连杆与平切口连杆静强度基本相同;裂解连杆三维凹凸面具有承载能力,有效降低了螺栓承受的剪切应力,裂解连杆比平切口连杆具有更好的抗剪性能;裂解连杆断裂接合面的三维凹凸性可使连杆体与连杆盖紧密接触并相互锁定,减小二者之间的相对移动且裂解连杆最大应变、总体变形量均小于平切口连杆,裂解连杆刚度优于平切口连杆。

关键词: 机械制造工艺与设备, 裂解连杆, 接合面重构, NURBS, 结构分析

Abstract: This paper combines the connecting rod fracture splitting experiment, three-dimensional (3D) reconstruction technology and finite element technique to study the performance of fracture-split connecting rod. The true fracture joint surface of a connecting rod is obtained by fracture splitting, and the fracture joint mode is reconstructed by reverse engineering. A real 3D geometric model of the fracture-split connecting rod is then established. The strength and stiffness of the fracture-split connecting rod are analyzed using finite element simulation and are compared with traditional machining connecting rod. The results show that the static strengths of the fracture slitting connecting rod and the flat incision connecting rod are basically the same. The 3D concavo-convex surface of the fracture-split connecting rod has the bearing capacity, which effectively reduces the shearing stress of the bolt. The fracture-split connecting rod has better shear performance than the flat incision connecting rod. The 3D jagged characteristics of the joint surface can make the rod close contact with the cover and lock each other to reduce the relative movement. The overall deformation of the fracture-split connecting rod is less than the flat incision connecting rod, thus, the stiffness of the fracture-split connecting rod is better than that of flat incision connecting rod.

Key words: machinery manufacturing process and equipment, fracture-split connecting rod, joint surface reconstruction, Non-uniform rational B-splines(NURBS), structural analysis

中图分类号:

TK406

寇淑清, 石舟. 裂解连杆接合面三维重构及其强度与刚度[J]. 吉林大学学报(工学版), 2018, 48(5): 1515-1523.

KOU Shu-qing, SHI Zhou. Three-dimensional reconstruction of fracture-split connecting rod joint surface and its strength and stiffness[J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1515-1523.

参考文献

[1] de Lima e Silva R, Galli L A F, Atoatte A, et al. Automotive connecting rod development: oval beam design and testing[C]∥SAE Paper, 2012-36-0576.
[2] Meng X, Xie Y.A new numerical analysis for piston skirt-liner system lubrication considering the effects of connecting rod inertia[J]. Tribology International, 2012, 47: 235-243.
[3] Lapp M T, Krause R, Hall C C, et al. Advanced connecting rod design for mass optimization[C]∥SAE Paper,2010-01-0420.
[4] 寇淑清, 宋玮峰, 石舟. 36MnVS4 连杆裂解加工模拟及缺陷分析[J]. 吉林大学学报:工学版, 2017,47(3): 861-868.
Kou Shu-qing, Song Wei-feng, Shi Zhou.Fracture splitting simulation and defect analysis of 36MnVS4 connecting rod[J]. Journal of Jilin University (Eng-ineer and Technology Edition), 2017,47(3):861-868.
[5] Gu Z, Yang S, Ku S, et al.Fracture splitting technology of automobile engine connecting rod[J]. The International Journal of Advanced Manufacturing Technology, 2005, 25(9): 883-887.
[6] 寇淑清, 杨宏宇, 高岩, 等. 裂解连杆断裂结合面缺损面积定量描述与分析[J]. 吉林大学学报: 工学版, 2013,43(6): 1541-1545.
Kou Shu-qing, Yang Hong-yu, Gao Yan, et al.Quantative description and analysis of defect area of fracture surface of splitting connecting rod[J]. Journal of Jilin University (Engineer and Technology Edition), 2013,43(6):1541-1545.
[7] Shi Z, Kou S, Gao Y.Study of strength and shear behavior of fracture splitting connecting rod[C]∥DEStech Transactions on Materials Science and Engineering, Xiamen,China,2016.
[8] Hu Ying-feng.The application of Geomagic Studio software in reverse engineering post-processing[J]. Manufacturing Automation, 2009,5(5):501-524.
[9] Yuan H, Wang N, Liang C.Combining the higher order method of moments with geometric modeling by NURBS surfaces[J].IEEE Transactions on Antennas and Propagation, 2009, 57(11): 3558-3563.
[10] Strozzi A, Baldini A, Giacopini M, et al.A repertoire of failures in connecting rods for internal combustion engines, and indications on traditional and advanced design methods[J]. Engineering Failure Analysis, 2016, 60: 20-39.
[11] Metkar R M,Sunnapwar V K,Hiwase S D.Fatigue strength and life prediction of forged steel crankshaft by using fracture mechanics approach[C]∥SAE Paper, 2013-26-0141.
[12] Joe Capou.Crunch time at SAE leaves the C-70 con rod bent and very battered[J]. Metal Powder Report,2005,60:14-16.

相关文章 15

[1]	李俊烨, 胡敬磊, 杨兆军, 张心明, 周曾炜. 离散相磨粒粒径对磨粒流研抛共轨管质量的影响[J]. 吉林大学学报(工学版), 2018, 48(2): 492-499.
[2]	曲兴田, 闫龙威, 孙慧超, 周伟, 李光辉. 工作平台可翻转的3D打印机装置结构分析[J]. 吉林大学学报(工学版), 2017, 47(5): 1489-1497.
[3]	陈超, 赵升吨, 崔敏超, 韩晓兰, 范淑琴, 石田徹. AL5052铝合金板平压重塑形连接试验[J]. 吉林大学学报(工学版), 2017, 47(5): 1512-1518.
[4]	郎利辉, 阚鹏, 王耀, 孙志莹, 张泉达. 铝合金板材三向应力状态下的成形性能[J]. 吉林大学学报(工学版), 2017, 47(5): 1527-1533.
[5]	张鹏, 寇淑清, 赵勇, 林宝君. 装配式凸轮轴三点式轴向滚花过程[J]. 吉林大学学报(工学版), 2016, 46(6): 1953-1960.
[6]	王犇, 王晓力. 硅微球轴承关键工艺[J]. 吉林大学学报(工学版), 2016, 46(3): 824-830.
[7]	郭哲锋, 汤文成. 杯形件二次拉深的应力分析[J]. 吉林大学学报(工学版), 2016, 46(2): 494-499.
[8]	滕菲, 刘博, 张万喜, 高嵩. 柔性三维拉弯成形工艺稳健设计[J]. 吉林大学学报(工学版), 2015, 45(5): 1481-1487.
[9]	寇淑清, 张鹏, 韩广秘, 杨慎华. 装配式凸轮轴多道次扩径联接工艺[J]. 吉林大学学报(工学版), 2014, 44(2): 398-403.
[10]	寇淑清, 杨宏宇, 高岩, 杨慎华. 裂解连杆断裂结合面缺损面积定量描述与分析[J]. 吉林大学学报(工学版), 2013, 43(06): 1541-1545.
[11]	洪肇斌, 杨兆军, 张学成, 王佰超. 基于齿面发生线的弧齿锥齿轮铣削加工仿真分析[J]. 吉林大学学报(工学版), 2013, 43(02): 334-339.
[12]	宋占杰, 张美, 何改云, 刘佩佩. 基于质心Voronoi结构的自由曲面布点策略[J]. 吉林大学学报(工学版), 2013, 43(01): 34-38.
[13]	曲兴田, 王滨, 张雷, 邵奎伟, 张亮. 焊缝磨抛图像预处理技术[J]. , 2012, (06): 1421-1425.
[14]	李国发, 张栋林, 龚金龙, 王利斌. ZrO₂陶瓷激光加热辅助切削加工技术[J]. , 2012, (06): 1409-1414.
[15]	张雷, 耿伟强, 鲍勇吉, 赵继. 用于羟基磷灰石冷喷涂的超声波送粉系统[J]. , 2012, (06): 1402-1408.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed