摘要
应用接触有限元方法对螺栓联接结构进行模拟分析,详细计算了螺纹联接第一牙根处应力应变值,得出不同预紧力下的疲劳寿命,依据预紧力-寿命曲线可以指导生产实际,求得最佳预紧力。依螺栓联接变形图,从理论上定性分析了疲劳寿命随预紧力的变化关系,结果表明理论分析与有限元分析的结论是一致的。
Stress and strain analysis on bolt joint structure was exactly performed by adopting contacting finite element method in this paper, and then curve of pretension stress - life （σp - N） was drawn. According to the curve, we can carry production practice well and obtain the best pretension stress. By the means of curve of load and deform, the curve shape of ap - N was analyzed fully in a quality, the results showed that the result by finite element was coincident with mathematics analysis.
出处
《压缩机技术》
2006年第5期21-23,共3页
Compressor Technology
关键词
接触有限元
螺栓
预紧力
疲劳寿命
contacting finite element
bolt
pretension stress
fatigue llfe
