压缩机气缸盖联接螺栓的有限元分析Finite Element Analysis of the Compressor Cylinder Head Bolt
白刚,尚浩田,王枫
BAI Gang,SHANG Hao-tian,WANG Feng
摘要(Abstract)：
压缩机气缸盖联接螺栓是用来把气缸盖、垫片、缸体等重要可拆卸部件联接在一起,并提供足够的预紧力,以保证压缩机密封性能,因此联接螺栓的设计与校核对压缩机的可靠性非常重要。本文在理论分析的基础上,采用基于螺纹接触截面的有限元方法对气缸盖联接螺栓进行校核,不仅得到与理论计算相同的螺栓强度结果,而且使螺栓在不同工况下的应力分布情况及伸长量得到较好呈现。通过瞬态动力学分析得到螺纹部位应力应变的精确结果以及动态压差下螺栓应力的周期变化,为分析螺栓的疲劳周期提供依据,也为解决类似的螺栓联接分析问题提供重要的解决方法。
The compressor cylinder head bolt is used for the cylinder head,gasket,cylinder body and other important removable parts join together,whether it meet the design requirements directly determines the realization of the compressor seal performance,so it is very important to check and analysis for the bolt. Based on the theoretical calculation,finite element analysis is used to check the design validity in this paper. On the basis of theoretical analysis of this paper,the FEA method based on screw thread contact section checks the connecting bolt at the cylinder head,not only be the same as the theoretical calculation of bolt strength as a result,and make the bolt that on the stress distribution under different working conditions and elongation to get better. Due to this way to simplify the threaded portion,bolt greatly improve the efficiency of modeling,reduce the calculation time,and also can get the accurate fruit of threaded parts of stress and strain. As a result of different cavity pressure stress distribution of the different parts of the bolt,the page provide the basis for design and optimization of bolt,also the importantsolution method for analysis of bolt connection of the similar problems.
关键词(KeyWords)：
压缩机;气缸盖联接螺栓;理论计算;有限元;瞬态动力学分析
compressor;cylinder head bolt;theoretical calculation;Finite element;transient dynamics analysis
基金项目(Foundation): 国家自然科学基金项目(51205035);; 辽宁省教育厅科学研究一般项目(L2013173)
作者(Author):
白刚,尚浩田,王枫
BAI Gang,SHANG Hao-tian,WANG Feng
参考文献(References)：
- [1]严天宏,梁嘉麟,李青.压缩机的现状发展及新型技术展望[J].压缩机技术,2011(1):52-58.
- [2]张贤明,牟瑛,王立存,等.空调制冷压缩机技术发展研究及其展望[J].压缩机技术,2009(6):58-60.
- [3]王志,黄荣华.现代高强度缸盖螺栓设计方法的研究[J].柴油机设计与制造,2002(1):14-17.
- [4]胡大芬,刘刚,王春发.CPR1000反应堆压力容器主螺栓预紧过程分析[J].压力容器,2015,32(11):6-11.
- [5]周万云,许洪朋,刘东杰,等.反应堆压力容器主螺栓孔修复方案探讨[J].压力容器,2015,32(2):75-80.
- [6]石秀勇,李国祥,白书战,等.柴油机高强度缸盖螺栓强度校核方法研究[J].柴油机,2006(3):31-34.
- [7]杜洪奎.氢气压缩机螺栓疲劳寿命预测及可靠性研究[D].北京:南京工业大学,2004.
- [8]冯秀,顾伯勤.螺栓法兰金属垫片连接结构的紧密性分析方法[J].润滑与密封,2011(9):95-98.
- [9]周昌玉,夏翔鸣,翟羽.压缩机螺栓联接结构的有限元模拟及疲劳寿命分析[J].压缩机技术,2005(6):11-13.
- [10]高斌,宋小文,卢斌,等.发动机气缸体螺纹联接强度有限元分析[J].工程设计学报,2005(4):227-231.
- [11]John D Reid,Nicholas R Hiser.Detailed modeling ofboltedjointswithslippage[J].Finiteelementsin Analysisand Design,2005(41):547-562.
- [12]徐超,余绍蓉,郑晓亚,等.机械螺栓法兰连接的有限元力学模型比较研究[J].机械设计与制造,2009(6):37-39.
- [13]张洪超,倪计民,杜倩颖,等.车用发动机气缸密封垫的密封性能研究[J].内燃机工程,2011,32(5):84-87.
- [14]https://www.bitzer.de/gb/en/products/Technologies/Reciprocating-Compressors[EB/OL].
- [15]吴克坚,于晓红.机械设计[M].北京:高等教育出版社,2003.