考虑过盈配合的抗侧滚扭杆寿命预测  

Life prediction of anti-roll torsion bar considering interference fit

作　　者：吕士勇[1] 卜继玲[1] 王京雁[1] 邓航[1] LYU Shiyong;BU Jiling;WANG Jingyan;DENG Hang(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412001

出　　处：《电力机车与城轨车辆》2024年第3期55-60,共6页Electric Locomotives & Mass Transit Vehicles

摘　　要：抗侧滚扭杆用于提供限制车辆侧滚角度的侧滚力矩,可以提升列车运行的平稳性和安全性。文章以某型动车组用抗侧滚扭杆为研究对象,在考虑抗侧滚扭杆的扭杆轴与扭转臂过盈配合的前提下,基于FKM准则对抗侧滚扭杆进行静强度和疲劳寿命评估。结果表明,该抗侧滚扭杆在极限载荷和疲劳载荷工况下的利用度均小于1,同时满足静强度要求和疲劳寿命要求。The anti-roll torsion bar is used to provide a roll torque that limits the roll angle of vehicle,which can improve the stability and safety of train operation.In this paper,the anti-roll torsion bar for a certain type of EMU is taken as the research object.Under the premise of considering the interference fit between the torsion bar shaft and the torsion arms of anti-roll torsion bar,the static strength and fatigue life of the anti-roll torsion bar are evaluated based on FKM guideline.The results show that the utilization of anti-roll torsion bar under ultimate load and fatigue load conditions is less than 1,which meets the requirements of static strength and fatigue life.

关 键 词：抗侧滚扭杆 FKM准则 过盈配合 静强度 疲劳寿命 

分 类 号：U270.33[机械工程—车辆工程]