Metro vehicle lateral vibration characteristics based on vehicle-equipment coupling under service conditions
-
摘要: 为了降低车体的横向振动，提高长期服役过程中的地铁车辆乘坐舒适性，建立了含车下设备的地铁车辆横向动力学模型，调研了车辆行驶速度分布以及反映轮轨接触状态的等效锥度在服役条件下的动态变化规律，获得了车-设备耦合下的横向振动特性，形成了车-设备耦合的车体横向减振参数设计方法。研究结果表明：地铁车辆的服役条件会随着车辆的行驶速度和等效锥度改变而动态改变，逐渐增大的轮轨接触等效锥度会导致车辆临界速度降低，加剧车辆的横向振动，横向振动的特征频率会随行驶速度和等效锥度的提高而线性增大，其数值集中在低频1~3 Hz范围；车体与设备在横向发生振动耦合时，设备的质量与弹性悬挂刚度存在最优匹配关系，选取合适的悬挂刚度能显著降低车体的横向振动，适当增加车下设备宽度和侧滚惯量，有助于降低车体的横向振动，为了抑制车-设备的横向振动，要重视横向悬挂刚度的选取，建议选取6.0×104 N·m-1；车下设备与车体之间采用合适的弹性悬挂连接，让设备横向振动频率与车体的横向振动频率接近，利用车-设备的同频耦合振动，能够降低车体的横向振动，有利于车辆运行品质的提升。Abstract: To reduce lateral vibrations of vehicle body and improve the comfort of metro vehicles during long-term service, a lateral dynamics model of metro vehicles with underframe equipment was built. The dynamic change rules in the distribution of vehicle speed and the equivalent conicity reflecting the wheel-rail contact state under service conditions were investigated. The lateral vibration characteristics of vehicle-equipment coupling were obtained, and a parameter design method for reducing lateral vibrations in vehicle-equipment coupling was formulated. Analysis results indicate that the service conditions of metro vehicles change dynamically with the variations in vehicle speed and equivalent conicity. The critical speed of the vehicles decreases and the lateral vibrations intensifies with an increase in the equivalent conicity of wheel-rail contact. The characteristic frequency of lateral vibration increases linearly with the increase in vehicle speed and equivalent conicity, and its value is concentrated in the low-frequency range of 1-3 Hz. When vehicle body and equipment undergo lateral vibration coupling, an optimal matching relationship exists between equipment mass and elastic suspension stiffness. Selecting an appropriate suspension stiffness can significantly reduce the lateral vibrations of vehicle body. Furthermore, increasing the width and roll inertia of underframe equipment helps reduce the lateral vibrations of vehicle body. To suppress the lateral vibration of vehicle-equipment, attention should be paid to the selection of lateral suspension stiffness, which is recommended to be 6.0×104 N·m-1. The lateral vibration frequency of equipment is made close to that of vehicle body through the adoption of a proper elastic suspension connection between underframe equipment and vehicle body. The lateral vibration of vehicle body can be reduced by utilizing the same frequency coupling vibration between vehicle and equipment, thereby improving the quality of vehicle operation.
-
图 1 四点悬挂对称布置的车下设备
Figure 1. Underframe equipment with four-point suspension and symmetrically arrangement
图 5 不考虑车-设备横向耦合振动时车体振动
Figure 5. Vibration of vehicle body when vehicle-equipment lateral coupling vibration is not considered
图 6 车下设备质量对车体横向振动的影响
Figure 6. Influences of underframe equipment quality on lateral vibration of vehicle body
图 7 车下设备横向悬挂刚度对车体横向振动的影响
Figure 7. Influences of lateral suspension stiffness of underframe equipment on lateral vibration of vehicle body
图 8 车下设备尺寸和转动惯量对车体横向振动的影响
Figure 8. Influences of underframe equipment dimensions and moment of inertia on lateral vibration of vehicle body
图 9 辅助逆变器箱横向悬挂刚度对车体横向振动的影响
Figure 9. Influences of lateral suspension stiffness of auxiliary inverter box on lateral vibration of vehicle body
图 10 辅助逆变器箱横、纵向悬挂刚度对车体横向振动的影响
Figure 10. Influences of lateral and vertical suspension stiffnesses of auxiliary inverter box on lateral vibration of vehicle body
图 11 不同工况下车-设备弹性连接的减振评价指标
Figure 11. Vibration reduction evaluation index of vehicle-equipment elastic connection under different conditions
表 1 某地铁车辆车下设备(辅助逆变器箱)参数
Table 1. Parameters of underframe equipment (auxiliary inverter box) of a certain metro vehicle
参数 含义 数值 Me 设备质量/kg 1 220 Iex 设备侧滚惯量/(kg·m2) 95.93 Iez 设备摇头惯量/(kg·m2) 257.99 Kex、Key、Kez 纵、横、垂向节点刚度(刚性)/ (N·m-1) 1.0×109 Kex、Key 纵、横向节点刚度(弹性)/(N·m-1) 1.0×106 Cex、Cey、Cez 纵、横、垂向节点阻尼(刚性)/ (N·s·m-1) 1.0×10-3 Cex、Cey 纵、横向节点阻尼(弹性)/(N·s·m-1) 1.0×103 Le 设备悬挂纵向间距之半/m 0.7 We 设备悬挂横向间距之半/m 0.38 He 设备的高度/m 0.605 H 设备悬挂与车-设备的垂向距离/m 0.495 
下载: 导出CSV
-
[1] 翟婉明, 赵春发. 现代轨道交通工程科技前沿与挑战[J]. 西南交通大学学报, 2016, 51(2): 209-226.ZHAI Wan-ming, ZHAO Chun-fa. Frontiers and challenges of sciences and technologies in modern railway engineering[J]. Journal of Southwest Jiaotong University, 2016, 51(2): 209-226. (in Chinese) [2] 翟婉明. 车辆-轨道耦合动力学理论的发展与工程实践[J]. 科学通报, 2022, 67(32): 3793-3807.ZHAI Wan-ming. Development of vehicle-track coupled dynamics theory and engineering practice[J]. Chinese Science Bulletin, 2022, 67(32): 3793-3807. (in Chinese) [3] 肖乾, 王丹红, 陈道云, 等. 高速列车轮轨激励作用机理及其影响综述[J]. 交通运输工程学报, 2021, 21(3): 93-109. doi: 10.19818/j.cnki.1671-1637.2021.03.005XIAO Qian, WANG Dan-hong, CHEN Dao-yun, et al. Review on mechanism and influence of wheel-rail excitation of high-speed train[J]. Journal of Traffic and Transportation Engineering, 2021, 21(3): 93-109. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2021.03.005 [4] WEN Yong-peng, LIU Yue-jie, ZHOU Yue, et al. Integrated optimization method of vibration and sound radiation for urban rail wheel structure[J]. Journal of Traffic and Transportation Engineering, 2023, 23(3): 137-147. [5] BUSTOS A, TOMAS-RODRIGUEZ M, RUBIO H, et al. On the nonlinear hunting stability of a high-speed train bogie[J]. Nonlinear Dynamics, 2023, 111(3): 2059-2078. doi: 10.1007/s11071-022-07937-y [6] WANG Jia-cheng, LING Liang, DING Xin, et al. The influence of aerodynamic loads on carbody low-frequency hunting of high-speed trains[J]. International Journal of Structural Stability and Dynamics, 2022, 22(13): 1-20. [7] XU Lei, ZHAI Wan-ming. Probabilistic assessment of railway vehicle-curved track systems considering track random irregularities[J]. Vehicle System Dynamics, 2018, 56(10): 1552-1576. doi: 10.1080/00423114.2018.1424916 [8] 朱海燕, 曾庆涛, 王宇豪, 等. 高速列车动力学性能研究进展[J]. 交通运输工程学报, 2021, 21(3): 57-92. doi: 10.19818/j.cnki.1671-1637.2021.03.004 ZHU Hai-yan, ZENG Qing-tao, WANG Yu-hao, et al. Research progress on dynamics performance of high-speed train[J]. Journal of Traffic and Transportation Engineering, 2021, 21(3): 57-92. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2021.03.004 [9] WEN Ze-feng, TAO Gong-quan, ZHAO Xin, et al. Wear and RCF problems of metro wheel/rail systems: phenomena, causes and countermeasures in China[J]. Wear, 2023, 534/535: 205118. doi: 10.1016/j.wear.2023.205118 [10] LI Yu-yi, REN Zun-song, ENBLOM R, et al. Wheel wear prediction on a high-speed train in China[J]. Vehicle System Dynamics, 2019, 58(12): 1839-1858. [11] SUN Yu, ZHAI Wan-ming, GUO Yu. A robust non-Hertzian contact method for wheel-rail normal contact analysis[J]. Vehicle System Dynamics, 2018, 56(12): 1899-1921. doi: 10.1080/00423114.2018.1439587 [12] 霍子伟, 文永蓬, 钟硕乔, 等. 轴箱内置地铁车辆在小半径曲线上的运行稳定性研究[J]. 振动与冲击, 2024, 43(18): 121-130.HUO Zi-wei, WEN Yong-peng, ZHONG Shuo-qiao, et al. Operation stability of axle box integrated metro vehicles running on small radius curved tracks[J]. Journal of Vibration and Shock, 2024, 43(18): 121-130. (in Chinese) [13] 贺小龙, 陈杰, 鄂世举, 等. 基于目标级联分析法的车下设备悬挂参数优化设计[J]. 交通运输工程学报, 2021, 21(6): 321-330. doi: 10.19818/j.cnki.1671-1637.2021.06.026HE Xiao-long, CHEN Jie, E Shi-ju, et al. Optimization design on suspension parameters of equipment mounted under car body via analytical target cascading method[J]. Journal of Traffic and Transportation Engineering, 2021, 21(6): 321-330. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2021.06.026 [14] 郭金莹, 石怀龙, 邬平波, 等. 动车组车下设备对舒适度的影响分析[J]. 机械工程学报, 2020, 56(22): 227-236.GUO Jin-ying, SHI Huai-long, WU Ping-bo, et al. Influence of car body-suspended equipment on the ride comfort of high- speed railway vehicles[J]. Journal of Mechanical Engineering, 2020, 56(22): 227-236. (in Chinese) [15] 孙煜, 宫岛, 周劲松, 等. 铁道车辆车下设备新型减振器设计研究[J]. 铁道学报, 2019, 41(4): 73-79.SUN Yu, GONG Dao, ZHOU Jin-song, et al. Study on design of new kind of absorber for under-chassis-equipment of rail vehicles[J]. Journal of the China Railway Society, 2019, 41(4): 73-79. (in Chinese) [16] 宫岛, 周劲松, 杜帅妹, 等. 高速动车组车下设备对车体振动传递与模态频率的影响机理研究[J]. 机械工程学报, 2016, 52(18): 126-133.GONG Dao, ZHOU Jin-song, DU Shuai-mei, et al. Study on the effect of the underframe equipment on vibration transmissibility and modal frequency of the car body for high-speed EMU trains[J]. Journal of Mechanical Engineering, 2016, 52(18): 126-133. (in Chinese) [17] 文永蓬, 孙倩, 周伟浩, 等. 轨道车辆车体磁流变弹性体吸振器的建模与仿真[J]. 机械工程学报, 2018, 54(22): 114-127.WEN Yong-peng, SUN Qian, ZHOU Wei-hao, et al. Modeling and simulation of vibration absorber for the carbody utilizing magnetorheological elastomers[J]. Journal of Mechanical Engineering, 2018, 54(22): 114-127. (in Chinese) [18] 文永蓬, 李琼, 尚慧琳, 等. 考虑车轨耦合作用的车体动力吸振器减振性能研究[J]. 振动与冲击, 2016, 35(21): 53-62.WEN Yong-peng, LI Qiong, SHANG Hui-lin, et al. Performances of dynamic absorbers for urban rail vehicle body considering effects of vehicle-track coupling[J]. Journal of Vibration and Shock, 2016, 35(21): 53-62. (in Chinese) [19] 文永蓬, 宗志祥, 翁琳, 等. 全速度区间内车体多重被动式吸振器减振方法[J]. 中南大学学报(自然科学版), 2020, 51(3): 853-862.WEN Yong-peng, ZONG Zhi-xiang, WENG Lin, et al. Vibration reduction method of multiple passive vibration absorbers for vehicle body in full speed range[J]. Journal of Central South University (Science and Technology), 2020, 51(3): 853-862. (in Chinese) [20] WEN Yong-peng, SUN Qian, ZOU Yu, et al. Study on the vibration suppression of a flexible carbody for urban railway vehicles with a magnetorheological elastomer-based dynamic vibration absorber[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2019, 234(7): 749-764. [21] 张卫华, 罗仁, 宋春元, 等. 基于电机动力吸振的高速列车蛇行运动控制[J]. 交通运输工程学报, 2020, 20(5): 125-134. doi: 10.19818/j.cnki.1671-1637.2020.05.010 ZHANG Wei-hua, LUO Ren, SONG Chun-yuan, et al. Hunting control of high-speed train using traction motor as dynamic absorber[J]. Journal of Traffic and Transportation Engineering, 2020, 20(5): 125-134. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2020.05.010 [22] 朱涛, 雷成, 肖守讷, 等. 车下弹性吊挂设备悬挂刚度选取方法[J]. 交通运输工程学报, 2018, 18(5): 111-118. doi: 10.19818/j.cnki.1671-1637.2018.05.011 ZHU Tao, LEI Cheng, XIAO Shou-ne, et al. Suspension stiffness selecting method of elastic suspension equipment under vehicle[J]. Journal of Traffic and Transportation Engineering, 2018, 18(5): 111-118. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2018.05.011 [23] CHANG Chao, DING Xin, LING Liang, et al. Mechanism of high-speed train carbody shaking due to degradation of wheel-rail contact geometry[J]. International Journal of Rail Transportation, 2022, 11(3): 289-316. [24] YANG Sheng, LI Fan-song, SHI Huai-long, et al. A roll frequency design method for underframe equipment of a high-speed railway vehicle for elastic vibration reduction[J]. Vehicle System Dynamics, 2021, 60(7): 2211-2230. [25] YAO Yuan, LI Guang, SARDAHI Y, et al. Stability enhancement of a high-speed train bogie using active mass inertial actuators[J]. Vehicle System Dynamics, 2018, 57(3): 389-407. [26] ZHAI Wan-ming, WANG Kai-yun, CAI Cheng-biao. Fundamentals of vehicle-track coupled dynamics[J]. Vehicle System Dynamics, 2009, 47(11): 1349-1376. [27] LUO Ren, TENG Wan-xiu, WU Xing-wen, et al. Dynamics simulation of a high-speed railway car operating in low-temperature environments with stochastic parameters[J]. Vehicle System Dynamics, 2020, 58(12): 1914-1934. [28] 吴俊汉, 文永蓬, 宗志祥, 等. 服役条件下提速地铁车辆的横向运动稳定性研究[J]. 振动与冲击, 2023, 42(3): 304-312.WU Jun-han, WEN Yong-peng, ZONG Zhi-xiang, et al. Lateral motion stability of speed-up metro vehicles under service conditions[J]. Journal of Vibration and Shock, 2023, 42(3): 304-312. (in Chinese) [29] 董昊亮, 文永蓬, 王向阳, 等. 多种接触状态下地铁车辆蛇行运动的稳定性演化[J]. 振动与冲击, 2022, 41(18): 94-103.DONG Hao-liang, WEN Yong-peng, WANG Xiang-yang, et al. Evolution of metro vehicle serpentine motion stability under multiple contact conditions[J]. Journal of Vibration and Shock, 2022, 41(18): 94-103. (in Chinese) [30] SHI Huai-long, LUO Ren, GUO Jin-ying. Improved lateral-dynamics-intended railway vehicle model involving nonlinear wheel/rail interaction and car body flexibility[J]. Acta Mechanica Sinica, 2021, 37(6): 997-1012. -
点击查看大图
图(11) / 表(1)
计量
- 文章访问数: 46
- HTML全文浏览量: 13
- PDF下载量: 9
- 被引次数: 0
