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工程力学  2013 

定常气动载荷作用下高速铁路车辆的蛇行运动稳定性

DOI: 10.6052/j.issn.1000-4750.2011.12.0886, PP. 52-58

Keywords: 高速铁路车辆,蛇行运动,线性稳定性,定常气动载荷,临界速度

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Abstract:

随着高速列车运行速度的提高,气动载荷会对车辆蛇行运动稳定性带来不利影响,现有文献对此研究很少。为此,考虑沿列车反向运动高速气流以及侧风的作用,研究了定常气动载荷下高速铁路车辆横向运动的线性稳定性。分析中计入了气动载荷改变轴重、使各轮法向支反力各不相同;以及使重力刚度、重力角刚度、轮对蠕滑系数等发生变化的效应。给出了计及气动影响的17个自由度铁路车辆蛇行运动分析模型,编制了相应的计算程序并进行了算例验证。进而,计算了在不同风速条件下,各个方向定常气动力和气动力矩单独以及共同作用时车辆运动稳定性特征值,并求出临界速度。结果表明:气动载荷会降低车辆临界速度;临界速度随横风风速增加而单调降低;与其他方向气动载荷相比,点头力矩和升力对临界速度的影响更大。

References

[1]  池茂儒),(张卫华),(曾京),(金学松),(朱旻昊). 蛇行运动对铁道车辆平稳性的影响[J]. (振动工程学报), 2008,21(6):639―643. Chi Maoru, Zhang Weihua, Zeng Jing, Jin Xuesong, Zhu Minhao. Influence of hunting motion on ride quality of railway vehicle [J]. Journal of Vibration Engineering,2008,21(6): 639―643. (in Chinese
[2]  鲜荣),(张卫华),(王开文). 机车车辆在滚动振动试验台上蛇行运动稳定性计算[J]. (铁道车辆), 2005,43(3):16―19. Xian Rong, Zhang Weihua, Wang Kaiwen. Calculation of the hunting motion stability of locomotives and rolling stock on the roller testing rig [J]. Rolling Stock,2005,43(3): 16―19. (in Chinese
[3]  刘宏友),(曾京),(吕可维). 高速客车蛇行运动Hopf分叉的研究[J]. (工程力学), 2005,22(6):224―228. Liu Hongyou, Zeng Jing, LüKewei. A study of hopf bifurcation of hunting motion for high-speed passenger cars [J]. Engineering Mechanics,2005,22(6): 224―228. (in Chinese
[4]  张卫华),(沈志云). 车辆系统非线性运动稳定性研究[J]. (铁道学报), 1996,18(1):29―34. Zhang Weihua, Shen Zhiyun. Nonlinear stability analysis of railway vehicle system [J]. Journal of the China Railway Society,1996,18(1): 29―34. (in Chinese
[5]  王福天)车辆动力学[M]. 北京: 中国铁道出版社, 1981: 87―100. Wang Futian. Dynamics of vehicle [M]. Beijing: China Railway Publishing House, 1981: 87―100. (in Chinese
[6]  Kalker J J. Three-dimensional elastic bodies in rolling contact [M]. The Netherlands: Dordrecht, Kluwer Academic Publishers, 1990:47―95.
[7]  田红旗)列车空气动力学[M]. 北京: 中国铁道出版社, 2007: 310―328. Tian Hongqi. Train aerodynamics [M]. Beijing: China Railway Publishing House, 2007: 310―328. (in Chinese
[8]  Kim P, Jung J, Seok J. A parametric dynamic study on hunting stability of full dual-bogie railway vehicle [J]. International Journal of Precision Engineering and Manufacturing, 2011,12(3):505―519.
[9]  Zboinski K, Dusza M. Self-exciting vibrations and Hopf?s bifurcation in non-linear stability analysis of rail vehicles in a curved track [J]. European Journal of Mechanics A/Solids, 2010(29):190―203.
[10]  Cheng Y C, Lee S Y, Chen H H. Modeling and nonlinear hunting stability analysis of high-speed railway vehicle moving on curved tracks [J]. Journal of Sound and Vibration, 2009(324):139―160.
[11]  曾京). 车辆系统的蛇行运动分叉及极限环的数值计算[J]. (铁道学报), 1996,18(3):13―19. Zeng Jing. Numerical computations of the hunting bifurcation and limit cycles for railway vehicle system [J]. Journal of the China Railway Society,1996,18(3): 13―19. (in Chinese
[12]  罗仁),(曾京). 列车系统蛇行运动稳定性分析及其与单车模型的比较[J]. (机械工程学报), 2008,44(4):184―188. Luo Ren, Zeng Jing. Hunting stability analysis of train system and comparison with single vehicle model [J]. Chinese Journal of Mechanical Engineering,2008,44(4): 184―188. (in Chinese

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