TC4紧固件性能试验和数值仿真  

Experiment and Numerical Simulation on Performance of TC4 Fastener

作　　者：张杰[1] 陶华[1] 陈磊[1] 刘风雷[2] 张广来[3] 

机构地区：[1]西北工业大学中法联合虚拟设计与制造研究室 [2]北京航空制造工程研究所 [3]中航工业沈阳飞机设计研究所

出　　处：《航空制造技术》2009年第14期78-81,87,共5页Aeronautical Manufacturing Technology

摘　　要：验证了航空飞行器结构中以滚压MJ螺纹的TC4螺栓替代常规M螺纹的30CrMnSiA螺栓的可行性。试验证明30CrMnSiA螺栓的拉伸性能略高于TC4螺栓,而TC4螺栓的拉伸疲劳性能远优于30CrMnSiA螺栓。应用ANSYS软件,以有限元方法计算了两种螺栓的应力集中系数,证明MJ螺纹TC4螺栓的应力集中系数较小是其抗疲劳性能提高的主要因素。The research validates the feasibility of using TC4 bolt with MJ thread to substitute 30CrMnSiA bolt with M thread in the aircraft manufacturing. The experiment proves that the tension intensity of 30CrMnSiA bolt is higher than that of TC4 bolt. But compared to the 30CrMnSiA bolt with M thread, the TC4 bolt ,with MJ thread obtains the far higher fatigue properties. Combind with the ANSYS FEA to calculate the concentration coefficient, the result shows that the concentration coefficient of TC4 bolt with MJ thread is lower is the main factor which improves the fatigue properties.

关 键 词：疲劳 螺栓 ANSYS 应力集中 

分 类 号：V229.1[航空宇航科学与技术—飞行器设计]