Research on Vibration Reduction of Carbody Underframe Suspended System Applied with Two-stage Suspension in High-speed EMU

doi:10.3901/JME.2018.08.001

Abstract

Abstract: Based on the field test on carbody underframe rotational equipment of some high-speed railway vehicle, a flexible-rigid coupled model considering carbody elastic and unbalanced vibration of rotational equipment was established. Applied with two-stage suspension of underframe rotational equipment, the vibration performance of carbody and underframe suspended equipment is analyzed. Comparing the result of carbody complete finite element model, the substructure model and modal test, the elastic carbody in the dynamic model can reflect the reality of carbody vibration modal. The result shows that the two-stage suspension mode mainly reduces the carbody vibration caused by dynamic unbalance, while has little influence on the vibration of other frequencies. Compared with the one-stage suspension, the vibration amplitude is reduced by about half, and the effect of vibration reduction is obvious. In the two-stage suspension system, the frame mass, suspension frequency and damping ratio have obvious influence on the vibration of carbody and the equipment. The effect is more obvious by selecting reasonable suspension parameters. The structure of two-stage suspension is complex and is not suitable for all underframe rotational equipment. To meet the requirement of long-term service operation of some electrical components, the application of two-stage suspension on the rotational equipment can obtain good effect of vibration reduction.

Key words: carbody vibration reduction, high-speed railway vehicle, two-stage suspension, unbalanced vibration, underframe rotational equipment

CLC Number:

U270

WANG Qunsheng, ZENG Jing, WEI Lai, ZHANG Chuanying. Research on Vibration Reduction of Carbody Underframe Suspended System Applied with Two-stage Suspension in High-speed EMU[J]. Journal of Mechanical Engineering, 2018, 54(8): 1-7.

References

[1] TOMIOKA T, TAKIGAMI T. Reduction of bending vibration in railway carbodies using carbody-bogie dynamic interaction[J]. Vehicle System Dynamics, 2010, 48(Suppl.1):461-471.
[2] GERHARD S, PETER L, CHRISTIAN B, et al. Comfort enhancement by an active vibration reduction system for a flexible railway car body[J]. Vehicle System Dynamics, 2007, 45(9):835-847.
[3] 曾京, 罗仁. 考虑车体弹性效应的铁道客车系统振动分析[J]. 铁道学报, 2007, 28(6):19-25. ZENG Jing, LUO Ren. Vibration analysis of railway passenger car system by considering flexible carbody effect[J]. Journal of the China Railway Society, 2007, 29(6):19-25.
[4] WU Pingbo, ZENG Jing, DAI Huanyun. Dynamic response analysis of railway passenger car with flexible carbody model based on semi-active suspensions[J]. Vehicle System Dynamics, 2004, 41:774-783.
[5] ZHANG W H, SHEN Z Y, ZENG J. Study on dynamics of coupled systems in high-speed trains[J]. Vehicle System Dynamics, 2013, 51(7):966-1016.
[6] 宫岛, 周劲松, 孙文静, 等. 高速列车弹性车体垂向振动控制[J]. 机械工程学报, 2011, 52(10):113-118. GONG Dao, ZHOU Jingsong, SUN Wenjing, et al. Vertical vibration control of flexible high-speed railway car body[J]. Journal of Mechanical Engineering, 2011, 52(10):113-118.
[7] SHI H L, LUO R, WU P B, et al. Application of DVA theory in vibration reduction of carbody with suspended equipment for high speed EMU[J]. Science China Technological Sciences, 2014, 57(7):1425-1438.
[8] 石怀龙,罗仁,邬平波,等. 基于动力吸振原理的动车组车下设备悬挂参数设计[J]. 机械工程学报, 2014, 50(14):155-161. SHI Huailong, LUO Ren, WU Pingbo, et al. Suspension parameters designing of equipment for electric mulitiple units based on dynamic vibration absorber theory[J]. Journal of Mechanical Engineering, 2014, 50(14):155-161.
[9] 汪群生, 曾京, 罗光兵, 等. 车轮磨耗下车下悬吊系统振动特性研究[J]. 机械工程学报, 2016, 52(10):113-118. WANG Qunsheng, ZENG Jing, LUO Guangbing, et al. Study on vibration behavior of carbody underneath suspended systems under wheel profile wear[J]. Journal of Mechanical Engineering, 2016, 52(10):113-118.
[10] 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 Jinsong, DU Shuaimei, 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.
[11] 宫岛, 周劲松, 孙文静, 等. 高速列车车下设备模态匹配及试验研究[J]. 铁道学报, 2014, 36(10):13-20. GONG Dao, ZHOU Jinsong, SUN Wenjing, et al. Modal matching between suspended equipment and car body of a high-speed railway vehicle and in-situ experiment[J]. Journal of the China Railway Society, 2014, 36(10):13-20.
[12] 于金朋, 张卫华, 张立民, 等. 高速动车组车下悬挂设备隔振设计研究[J]. 铁道学报, 2017, 39(1):33-40. YU Jinpeng, ZHANG Weihua, ZHANG Limin, et al. Research on vibration isolation design of suspension equipment for high-speed train[J]. Journal of the Chinese Railway Society, 2017, 39(1):33-40.
[13] 黄雪飞, 于金朋, 张丽博, 等. 车下设备与车体接口双层隔振系统隔振参数研究[J]. 噪声与振动控制, 2015, 35(3):67-72. HUANG Xuefei, YU Jinpeng, ZHANG Libo, et al. Study on vibration isolator parameters of the double-layer vibration isolation system of bogie-equipment EMU[J]. Noise and Vibration Control, 2015, 35(3):67-72.
[14] 王忆佳, 曾京, 吴会超, 等. 车下有源振动设备对车体振动影响的试验研究[J]. 现代制造工程, 2013(9):50-54, 58. WANG Yijia, ZENG Jing, WU Huichao, et al. The test study on the influence of active vibration equipments to carbody vibration[J]. Modern Manufacturing Engineering, 2013, (9):50-54, 58.
[15] 汪群生, 曾京, 魏来, 等. 车下悬吊设备不均衡振动对车体振动的影响[J]. 铁道学报, 2017, 39(2):24-31. WANG Qunsheng, ZENG Jing, WEI Lai, et al. Influence of unbalanced vibration of underneath suspended system on carbody vibration[J]. Journal of the Chinese Railway Society, 2017, 39(2):24-31.
[16] 罗仁,李然,胡俊波, 等. 考虑随机参数的高速列车动力学分析[J]. 机械工程学报, 2015, 51(24):90-96. LUO Ren, LI Ran, HU Junbo, et al. Dynamic analysis of high-speed train with stochastic parameters[J]. Journal of Mechanical Engineering, 2015, 51(24):90-96.