螺旋线螺纹模型的有限元分析
PDF下载 (378)李坚成,陈振雷*,廖俊雄,石凡.螺旋线螺纹模型的有限元分析[J].宁波大学学报(理工版),2018,31(6):49-54.DOI:
LI Jian-cheng,CHEN Zhen-lei*,LIAO Jun-xiong,SHI Fan.Finite element analysis of helical thread model[J].Journal of Ningbo University(Natural Science & Engineering Edition),2018,31(6):49-54.DOI:
| Title: | Finite element analysis of helical thread model |
| 作者: | 李坚成, 陈振雷*, 廖俊雄, 石凡 |
| Author(s): | LI Jian-cheng, CHEN Zhen-lei*, LIAO Jun-xiong, SHI Fan |
| 关键词: | 发动机; 主轴承盖螺栓; 螺旋线螺纹; 有限元; 强度分析 |
| Keywords: | engine; main bearing cap bolt; helical thread; finite element; strength analysis |
| 分类号: | TK422 |
| 文献标识码: | A |
| 摘要: | 针对精细化模型与Abaqus摩擦模型所存在问题, 提出一种基于螺纹几何特征的螺旋线螺纹模型, 采用脚本语言实现了螺旋线螺纹模型生成自动化, 并应用到某发动机机体主轴承盖螺栓螺孔的强度分析. 分析结果表明, 仿真计算得到的螺栓及机体螺孔处的应力很好地表征了螺栓连接结构螺纹处的实际应力分布, 与螺纹精细模型相近, 比Abaqus摩擦模型精度更高, 且计算方便、实用、高效, 验证了本文方法的准确、可行. |
| Abstract: | A helical thread model based on thread geometry characteristics is proposed to resolve the issues in the fine thread model and Abaqus frictional model. The mesh in the proposed model is generated automatically by a Hypermesh script. The helical thread model was applied to the main bearing cap bolt and the bolt hole of an engine bulkhead. The analytical results show that the stress at the bolt and the bolt hole of the block can well represent the actual stress distribution at the thread area, and it is similar to the results with the corresponding fine thread model. Compared to the fine thread model, the proposed approach is convenient, practical and efficient in engineering application. It is more accurate compared to that of Abaqus frictional model, which indicates that the presented method is accurate and feasible. |
| 参考文献 /References: | [1]., 李明. 发动机螺栓连接强度有限元分析[J]. 计算机辅助工程, 2013, 22(3):39-42 [2].赵欣, 李文波, 邓磊, 等. 某型汽车螺栓力学强度的有限元分析[J]. 计械设计与研究, 2009(1):73-75. [3].Toshimichi F, Masataka N, Yuuya M. Proposition of helical thread modeling with accurate geometry and finite element analysis[J]. Journal of Pressure Vessel Technology, 2008, 130(1):135-140. [4].Butterworth J. Finite element analysis of structural steelwork beam to column bolted connection[EB/OL]. [2017-06-22]. https://max.book118.com/html/2015/1108/ 28902399.shtm. [5].石秀勇, 李国祥 胡玉平J]. 中国机械工程, 2006, 17(8):845-848 [6].Reid J D, Hiser N R. Detailed modeling of bolted joints with slippage[J]. Finite Element in Analysis and Design, 2005, 17(9):547-562. [7].尹益辉, 余绍蓉. 螺栓啮合螺纹段的轴力等效应力分布及摩擦的影响分析J]. 机械强度(4):524- 531. [8].何平J]. 中国机械工程16):1991-1996. [9].ABAQUS. ABAQUS User’s Manual, version 6.14[R]. 2014. [10].林晓龙. 高强度螺栓的应力分析及结构疲劳强度优化[D]. 2012. |
| 备注/Memo: | 收稿日期: 2017?10?31. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 宁波大学人才工程项目（理）（421700090）; 宁波大学2017年度研究生科研创新基金资助项目（G17100）. 第一作者: 李坚成（1993－）, 男, 浙江绍兴人, 在读硕士研究生, 主要研究方向: 结构物强度与疲劳仿真分析. E-mail: 2313013927@qq.com *通信作者: 陈振雷（1963－）, 男, 浙江宁波人, 博士/教授, 主要研究方向: 高端制造的仿真分析与试验测试. E-mail: chenzhenlei@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
