-
摘要: 建立车辆系统数学模型, 理论分析转向架相对车体的回转运动过程, 推导装备空气弹簧转向架车辆的回转阻力系数计算公式。利用参数试验台进行回转阻力系数测试, 验证数学模型和理论计算结果的可信性, 分析动拖车在不同载重下的回转阻力系数分布规律, 研究空簧状态对回转阻力系数的影响。分析结果表明: 空簧正常、过充状态下理论计算值均低于试验值, 最大相差0.02, 原因为理论计算时未考虑不同转动速度下的空簧动刚度特性与其他悬挂部件的阻力作用; 回转阻力系数与转动角度和转动速度成正比, 1.0 (°) ·s-1时的回转阻力系数要远大于0.2 (°) ·s-1时的结果, 最大相差0.047;在空簧失气状态下, 试验值大于计算值, 且转动速度越大, 差异越显著; 空簧过充对回转阻力系数影响不大, 最危险工况为拖车空车在空簧失气状态下, 回转阻力系数为0.093。Abstract: The mathematical model of railway passenger car was established to analyze the rotation motion between bogie and carbody.The bogie rotation resistance factor formula was built for the vehicle with air springs bogies.Laboratory test was used to measure the resistance factor to verify mathematical model and calculation results.The distribution rule of bogie rotation resistance factor was summarized for motor and trailer car under different loading conditions.The influence of air spring state on the resistance factor was analyzed.Analysis result shows that the theory calculation result is slightly smaller than the test result for air springs in inflated and overinflated states, and the maximum error is 0.02, which is resulted from that the dynamic stiffness change of air spring at different rotation velocities and other suspension components'influence in theory calculation are ignored.The greater the rotation angle and the rotation velocity are, the greater the rotation resistance factor becomes.The resistance factor at 1.0 (°) ·s-1 is much greater than that at 0.2 (°) ·s-1, and the extreme error is 0.047.In the deflated state of air spring, the test result is bigger than the calculation result, and the difference increases with the rotation velocity.The air spring in over-inflated state has little effect on the rotation resistance factor.In the deflated state of air spring, for trailer car of tare load, the rotation resistance factor reaches its most dangerous value 0.093.
-
Key words:
- railway vehicle /
- bogie /
- rotation resistance torque /
- rotation resistance factor /
- rotation velocity /
- rotation angle
-
图 4 转动平台阻力矩与角度计算方法
Figure 4. Calculation method for resistant torque and angle of rotation platform
图 5 试验台空载状态回转阻力曲线
Figure 5. Rotation resistance curves of rotation platform without load
-
[1] EICKHOFF B M, EVANS J R, MINNIS A J. A review of modelling methods for railway vehicle suspension components[J]. Vehicle System Dynamics, 1995, 24 (6/7): 469-496. doi: 10.1080/00423119508969105 [2] GM/RT2141—1998, resistance of railway vehicles to derailment and roll-over[S]. [3] IWNICKI S. Handbook of Railway Vehicle Dynamics[M]. New York: Taylor and Francis Group, 2006. [4] SIMSON S, PEARCE M. Longitudinal impact forces at3piece bogie center bearings[C]//ASME. Proceedings of JRC2005. Pueblo: ASME, 2005: 45-50. [5] SIMSON S, BRYMER B. Gauge face contact implications of bogie rotation friction in curving[C]//Institute of Materials Engineering Australasia Ltd. 7th Conference on Contact Mechanics and Wear of Rail/Wheel Systems. Brisbane: Institute of Materials Engineering Australasia Ltd., 2006: 549-554. [6] SIMSON S, PEARCE M. Wheel wear losses from bogie rotation resistance, effects of cant and speed[C]//ASME. Proceedings of JRC 2006. Atlanta: ASME, 2006: 109-114. [7] SIMSON S, BRYMER B. Laboratory testing of bogie rotation friction with applied track twisting forces[C]//Railway Technical Society of Australasia. Conference on Railway Engineering 2008. Perth: Railway Technical Society of Australasia, 2008: 395-402. [8] EMEREOLE O, SIMSON S, BRYMER B. A parametric study of bogie rotation friction management utilizing vehicle dynamic simulation[C]//Institute of Materials Engineering Australasia Ltd. 7th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems. Brisbane: Institute of Materials Engineering Australasia Ltd., 2006: 535-541. [9] WU H, ROBEDA J. Effect of bogie center plate lubrication on vehicle curving and lateral stability[J]. Vehicle System Dynamics, 2004, 41 (1): 292-301. [10] WU H, ROBEDA J, GUINS T. Truck center plate lubrication practice study and recommendations[R]. Pueblo: Association of American Railroads/Transport Technology Center, 2004. [11] 任利惠, 张辉, 胡用生. 货车转向架动力学参数测试台研究与试验[J]. 中国铁道科学, 2001, 22 (3): 72-78. doi: 10.3321/j.issn:1001-4632.2001.03.014REN Li-hui, ZHANG Hui, HU Yong-sheng. Research and experiment on test-bed for measuring dynamics parameters of freight car bogie[J]. China Railway Science, 2001, 22 (3): 72-78. (in Chinese). doi: 10.3321/j.issn:1001-4632.2001.03.014 [12] 黄彪, 邬平波, 杨世杰, 等. 转向架参数测试台数据处理方法[J]. 交通运输工程学报, 2009, 9 (6): 54-58. http://transport.chd.edu.cn/article/id/200906011HUANG Biao, WU Ping-bo, YANG Shi-jie, et al. Dataprocessed method of bogie parameters test rig[J]. Journal of Traffic and Transportation Engineering, 2009, 9 (6): 54-58. (in Chinese). http://transport.chd.edu.cn/article/id/200906011 [13] HUANG Y M, WANG T S. Rotational resistance behavior and field testing of two-axle bogie design[J]. Vehicle System Dynamics, 1999, 31 (1): 47-63. doi: 10.1076/vesd.31.1.47.2098 [14] 苏建, 王秀刚, 曹晓宁, 等. 转向架回转特性的测定[J]. 华中科技大学学报: 自然科学版, 2013, 41 (5): 6-10, 22. https://www.cnki.com.cn/Article/CJFDTOTAL-HZLG201305001.htmSU Jian, WANG Xiu-gang, CAO Xiao-ning, et al. Determining turning characteristics of bogies[J]. Huazhong University of Science and Technology: Natural Science Edition, 2013, 41 (5): 6-10, 22. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HZLG201305001.htm -
下载:
点击查看大图
图(6) / 表(7)
计量
- 文章访问数: 971
- HTML全文浏览量: 181
- PDF下载量: 764
- 被引次数: 0
