一种新的考虑接触角的弓网接触模型
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摘要
通过考虑弓网滑动接触过程中实际存在的接触角的影响,对Lankarani提出的赫兹接触模型进行修正,提出了一种新的弓网接触模型,并与传统接触模型和Lankarani赫兹接触模型进行对比,辨识了不同接触模型对弓网系统动力学性能的影响。结果表明:与经典接触模型相比,赫兹接触模型考虑了弓网间阻尼的影响,使得后者较前者在高速条件下接触力变化更为平缓;新接触模型与Lankarani接触模型相比,在高速条件下接触力变化更为剧烈,特别是在定位器附近;在高速条件下,弓网间阻尼以及接触角对接触力的影响不可忽略,采用新提出的接触模型进行弓网动力学仿真更为合理。
Taking into consideration the influence of contact angle during the process of pantograph/catenary sliding contact,the Lankarani Hertz contact model was modified and a new pantograph/catenary contact model was proposed. The effects of using the traditional contact model, the Lankarani Hertz contact model and the proposed model, on the dynamic performances of a pantograph/catenary system were investigated. The results show that compared with the traditional contact model, the Hertz contact model considers the effect of damping between pantograph and catenary, and makes the contact force variation much gentler. For the new contact model, the contact force variation becomes more severe than that of the Lankarani model at high speed, especially in the vicinity of the registration; At high speed, the influences of the damping between pantograph and catenary and the contact angle can not be neglected, and it is more reasonable to adopt the new contact model to perform pantograph/catenary dynamic simulations.
Taking into consideration the influence of contact angle during the process of pantograph/catenary sliding contact,the Lankarani Hertz contact model was modified and a new pantograph/catenary contact model was proposed. The effects of using the traditional contact model, the Lankarani Hertz contact model and the proposed model, on the dynamic performances of a pantograph/catenary system were investigated. The results show that compared with the traditional contact model, the Hertz contact model considers the effect of damping between pantograph and catenary, and makes the contact force variation much gentler. For the new contact model, the contact force variation becomes more severe than that of the Lankarani model at high speed, especially in the vicinity of the registration; At high speed, the influences of the damping between pantograph and catenary and the contact angle can not be neglected, and it is more reasonable to adopt the new contact model to perform pantograph/catenary dynamic simulations.
引文
[1] FACCHINETTI A,BRUNI S.Hardware-in-the-loop hybrid simulation of pantograph-catenary interaction[J].Journal of Sound and Vibration,2012,331:2783-2797.
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[4] ZHOU Ning,ZHANG Weihua,LI Ruiping.Dynamic performance of a pantograph-catenary system with the consideration of the appearance characteristics of contact surfaces [J].Zhejiang University-Science A,2011,12(12):913-920.
[5] 周宁,李瑞平,张卫华.基于负弛度法的接触网建模与仿真[J].交通运输工程学报,2009,9(4):28-32.ZHOU Ning,LI Ruiping,ZHANG Weihua.Modeling and simulation of catenary based on negative sag method[J].Journal of Traffic and Transportation Engineering,2009,9(4):28-32.
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[7] HOBBS A E W.Accurate prediction of overhead line behavior [J].Railway Gazette International,1977,133(9):339-343.
[8] COLLINA A,LO C A,CARNEVALE M.Effect of collector deformable modes in pantograph-catenary dynamic interaction [J].Department of Mechanics,2008,223:1-14.
[9] LANKARANI H M,NIKRAVESH P E.A contact force model with hysteresis damping for impact analysis of multibody systems [J].Journal of Mechanical Design,1990,112:369-376.
[10] RAUTER F G,POMBO J,AMBROSIO J,et al.Contact model for the pantograph-catenary interaction [J].Journal of System Design and Dynamics,2007,1(3):447-457.
[11] AMBROSLO J,RAUTER F,POMBO J,et al.A flexible multibody pantograph model for the analysis of the catenary-pantograph contact [J].Computational Methods in Applied Sciences,2009,23:1-27.
[12] LEE K.Analysis of dynamic contact between overhead wire and pantograph of high-speed electrical train [J].Journal of Rail and Rapid Transit,2007,221:157-166.
[13] 周宁.350 km/h及以上弓网动态行为研究[D].成都:西南交通大学,2013.
[2] ZHANG Weihua,MEI Guiming,WU Xuejie.Hybrid simulation of dynamics for the pantograph-catenary system[J].Vehicle System Dynamics,2002,38(6):393-414.
[3] ZHANG Weihua,MEI Guiming,WU Xuejie,et al.A study on dynamic behavior of pantographs by using hybrid simulation method [J].Rail and Rapid Transit,2005,219(3):189-199.
[4] ZHOU Ning,ZHANG Weihua,LI Ruiping.Dynamic performance of a pantograph-catenary system with the consideration of the appearance characteristics of contact surfaces [J].Zhejiang University-Science A,2011,12(12):913-920.
[5] 周宁,李瑞平,张卫华.基于负弛度法的接触网建模与仿真[J].交通运输工程学报,2009,9(4):28-32.ZHOU Ning,LI Ruiping,ZHANG Weihua.Modeling and simulation of catenary based on negative sag method[J].Journal of Traffic and Transportation Engineering,2009,9(4):28-32.
[6] COLLINA A,BRUNI S.Numerical simulation of pantograph-overhead equipment interaction[J].Vehicle System Dynamics,2002,38(4):261-291.
[7] HOBBS A E W.Accurate prediction of overhead line behavior [J].Railway Gazette International,1977,133(9):339-343.
[8] COLLINA A,LO C A,CARNEVALE M.Effect of collector deformable modes in pantograph-catenary dynamic interaction [J].Department of Mechanics,2008,223:1-14.
[9] LANKARANI H M,NIKRAVESH P E.A contact force model with hysteresis damping for impact analysis of multibody systems [J].Journal of Mechanical Design,1990,112:369-376.
[10] RAUTER F G,POMBO J,AMBROSIO J,et al.Contact model for the pantograph-catenary interaction [J].Journal of System Design and Dynamics,2007,1(3):447-457.
[11] AMBROSLO J,RAUTER F,POMBO J,et al.A flexible multibody pantograph model for the analysis of the catenary-pantograph contact [J].Computational Methods in Applied Sciences,2009,23:1-27.
[12] LEE K.Analysis of dynamic contact between overhead wire and pantograph of high-speed electrical train [J].Journal of Rail and Rapid Transit,2007,221:157-166.
[13] 周宁.350 km/h及以上弓网动态行为研究[D].成都:西南交通大学,2013.