摘要
铆接作为飞机结构装配中常用的装配方法,其特点主要是连接可靠,工艺简单,适用于各类机体结构之间的连接,其质量是提高飞机疲劳寿命的重要因素。基于塑性力学中铆钉镦粗的变形受力特点和机械连接可靠性理论,采用主应力法,结合有限元仿真,分析铆接过程中试件的受载情况,构建铆接变形受力模型,通过工艺试验,获得干涉量影响疲劳寿命的影响规律,在机械连接可靠性前提下提出飞机铆接的最佳干涉量范围。
As a common assembling method with reliabe joint structure and simple process,riveting is used for all kinds of structure and its quality is an important factor to improve aircraft fatigue life.To achieve this,the analysis of the riveting deformation characteristic was completed by the plastic mechanics.Based on the theory of reliability of joint structure,the load of pieces was analysed and a riveting physical model was built.Through the tests,the effects of interference-fit level on fatigue were analyzed and the reasonable interference-fit level was abtained by main stress method and finite element simulation.
作者
杨悦
余路
蒋红宇
王宇波
YANG Yue;YU Lu;JIANG Hongyu;WANG Yubo(Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 200436,China)
出处
《机械制造与自动化》
2021年第2期87-90,共4页
Machine Building & Automation
关键词
飞机装配
铆接工艺
干涉量
疲劳寿命
有限元分析
aircraft assembly
riveting process
interference-fit level
fatigue
finite element analysis
