CAJ | 학술논문

具有柔性构架的转向架已经广泛使用于城市轨道交通车辆．柔性构架简化了一系悬挂，缩短轴距，提高曲线通过性能．本文介绍了一种新型的、抱轴式永磁同步电机直接驱动的柔性构架转向架设计方案．构架的柔性由工字型的横梁提供．使用Simpack软件分析了柔性构架的刚度参数对车辆稳定性、脱轨安全性和平稳性的影响，模型中将柔性构架处理为采用多向弹簧连接的两个侧梁刚体．仿真分析表明，柔性构架的抗菱刚度对蛇行稳定性和横向平稳性有显著影响，扭曲刚度则对脱轨安全性有明显影响．为了满足动力学性能，柔性构架应具有高的抗菱刚度和低的扭曲刚度．
구유유성구가적전향가이경엄범사용우성시궤도교통차량．유성구가간화료일계현괘，축단축거，제고곡선통과성능．본문개소료일충신형적、포축식영자동보전궤직접구동적유성구가전향가설계방안．구가적유성유공자형적횡량제공．사용Simpack연건분석료유성구가적강도삼수대차량은정성、탈궤안전성화평은성적영향，모형중장유성구가처리위채용다향탄황련접적량개측량강체．방진분석표명，유성구가적항릉강도대사행은정성화횡향평은성유현저영향，뉴곡강도칙대탈궤안전성유명현영향．위료만족동역학성능，유성구가응구유고적항릉강도화저적뉴곡강도．
The power bogies with flexible truck have been adopted in urban mass transit for their simple primary suspension and short axle spaces which decrease the angle of attack and wheel/rail lateral force. The scheme of a new power bogie with a flexible truck and permanent - magnet synchronous motors which direct drive wheelsets without gear was presented in this paper. The lateral beams of truck were design to an I＇shape to pro- vide the flexibilities. The effects of truck flexibilities on dynamics performance were simulated by Simpack soft- ware in which the flexible truck was treated as two rigid side frames which were linked by a multi - direction spring. The simulation results show that the wrap stiffness distinctly affects the hunting stability and torsion stiff- ness affects the derail safety. The flexible truck should possess hi~her wrar~ stiffness and lower torsion stiffness.