In this paper,a multi-body dynamic simulation model of six-axle wide-gauge electric locomotive-"BKT-2 locomotive"is established.Under the excitation of AAR5 track spectrum,the effects of different curve radius,loco-motive running speeds and suspension stiffness on locomotive dynamic characteristics are studied.The results show that the smaller the radius of the curve is,the larger the vertical dynamic load coefficient is,with the increase of the velocity,the vertical stationarity of different radius of the curve changes little,and the lateral stationarity changes obviously,The lateral stability index decreases and increases with the increase of the secondary lateral stiffness,and the change of the vertical stiffness has a great influence on the vertical dynamic characteristics.The proper reduc-tion of the primary and secondary vertical stiffness is beneficial to the improvement of locomotive dynamic perform-ance.
关键词
电力机车/平稳性指标/悬挂刚度/垂向动荷系数
Key words
electric locomotive/ride comfort index/suspension stiffness/vertical dynamic load coefficient
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