逆向工程和有限元仿真在螺栓装配工艺研究中的应用  

Application of Reverse Engineering and Finite Element Analysis to Bolt Assembling Technique

作　　者：王崴[1] 肖强明[1] 李培林[1] 徐晓东[1] 

机构地区：[1]空军工程大学导弹学院,陕西咸阳713800

出　　处：《机床与液压》2012年第23期127-131,139,共6页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51075395)

摘　　要：针对结合面微观几何形貌和螺栓装配工艺对螺栓连接性能影响的重要性,利用逆向工程软件Imageware,并结合Pro/E建立基于真实微观粗糙表面的螺栓连接模型,通过PREST179单元模拟螺栓的预紧力,进行螺栓连接的有限元瞬态分析,从而在考虑结合面微观几何形貌的情况下,研究预紧力大小、预紧力施加速度对结合面应力状况的影响。根据有限元数值计算结果,建立了螺栓预紧力大小、速度和连接性能的关联模型,指导面向螺栓精密连接的装配工艺。Aiming at the importance of the microcosmic topography of connecting surface and bolt assembling technique to the bolt connection performance, the Imageware and Pro/E were used to build the bolt connecting model based on the real microcosmic rough surface. The preload was simulated by the PREST179 element. The finite element transient analysis was used to simulate the influ- ences of preload and applying speed to the connecting surface stress state. The relationship model between tighten speed, preload and connecting performance was presented based on the finite element analysis results. According to the model, the single bolt precise as- sembling technique can be obtained.

关 键 词：逆向工程 有限元仿真 螺栓连接 装配工艺 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]