客车振动舒适性评价方法在瞬变风环境下的应用
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摘要
瞬变风环境下铁道客车的振动情况较为复杂,为准确评估旅客乘坐感受,采用动力学仿真与实车试验相结合的方法,对瞬变风环境下客车振动情况与舒适性进行评价。分析兰新客专线实车试验中乘客对振动的感觉及仿真得到的舒适性值后发现,随着车速以及外部气动载荷变化次数的增加,车辆振动越来越剧烈,舒适性指标有变差的趋势;各工况中当车辆以200km/h速度运行且受到连续瞬变气动载荷作用时振动舒适性指标最差。在瞬变风环境下,GB5599,ISO2631和UIC513方法的评价结果有一定差异,原因部分来源于各方法频率加权的差别,导致各指标对横、垂向加速度频域峰值的放大作用不同。
The vibration of railway passenger car is complicated under transient wind.To evaluate passengers' feeling on railway vehicles under transient wind,the vibration and comfort of the passenger car under complex wind were evaluated by the method of field test and dynamic simulation.Comparing the passengers' feeling in the field test with the comfort level obtained from the simulation,it was found that with the increase of the speed and the intensity of the aerodynamic load,the vibration of the vehicle is becoming more intense and the comfort index tends to decrease.The worst condition of vibration comfortableness happens when the vehicle runs at 200 km/h speed and is subjected to the continuous transient wind load.Under transient wind condition,the evaluation results of GB5599,ISO2631 and UIC513 method were a little bit different,resulting from the difference in the frequency weighted curves of each method partly,leading to their differences in the amplification effect on frequency domain peak of lateral and vertical accelerations.
The vibration of railway passenger car is complicated under transient wind.To evaluate passengers' feeling on railway vehicles under transient wind,the vibration and comfort of the passenger car under complex wind were evaluated by the method of field test and dynamic simulation.Comparing the passengers' feeling in the field test with the comfort level obtained from the simulation,it was found that with the increase of the speed and the intensity of the aerodynamic load,the vibration of the vehicle is becoming more intense and the comfort index tends to decrease.The worst condition of vibration comfortableness happens when the vehicle runs at 200 km/h speed and is subjected to the continuous transient wind load.Under transient wind condition,the evaluation results of GB5599,ISO2631 and UIC513 method were a little bit different,resulting from the difference in the frequency weighted curves of each method partly,leading to their differences in the amplification effect on frequency domain peak of lateral and vertical accelerations.
引文
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[13]International Standard ISO2631-1:1997(E)Mechanical vibration and shock evaluation of human exposure to whole-body vibration-Part 1:General requirements[S].Switzerland:International Organization for Standardization,1997.
[14]UIC Code 513 Guide-lines for evaluating passenger comfort in relation to vibration in railway vehicles[Z].Paris:International Union of Railways(UIC)&European Committee for Standardization(CEN),1994.
[15]BS EN12299-2009,Railway applications.Ride comfort for passengers-Measurement and evaluation[S].European Committee for Standardization,2009.
[16]GB5595-1985,铁道车辆动力学性能评定和试验鉴定规范[S].GB5595-1985,Railway vehicles-S pacification for evaluation the dynamic performance and accreditation test[S].
[2]于阁,林建辉,张兵.高速动车组车体振动特征及振动舒适度研究[J].铁道机车车辆,2013,33(增1):92-95.YU Ge,LIN Jianhui,ZHANG Bing.Research of car body vibration characteristic and vibration comfort of high-speed EMU[J].Railway Locomotive&Car,2013,33(Suppl 1):92-95.
[3]倪纯双,王悦明.浅析平稳性指标和舒适度指标[J].铁道机车车辆,2003,23(6):1-3.NI Chunshuang,WANG Yueming.A brief discussion for ride index and comfort[J].Railway Locomotive&Car,2003,23(6):1-3.
[4]龙许友,时瑾,王英杰,等.高速铁路线路线形动力仿真及乘坐舒适度评价[J].铁道科学与工程学报,2012,9(3):26-33.LONG Xuyou,SHI Jin,WANG Yingjie,et al.Dynamic simulation and ride comfort evaluation of track alignment for high speed railway[J].Journal of Railway Science and Engineering,2012,9(3):26-33.
[5]任尊松,徐宇工,王璐雷,等.强侧风对高速列车运行安全性影响研究[J].铁道学报,2006,28(6):46-50.REN Zunsong,XU Yugong,WANG Lulei,et al.Study on the running safety of high-speed trains under strong cross winds[J].Journal of the China Railway Society,2006,28(6):46-50.
[6]XIAO Xinbiao,LING Liang,XIONG Jiayang,et al.Study on the safety of operating high-speed railway vehicles subjected to crosswinds[J].Journal of Zhejiang University Science A:Applied Physics&Engineering,2014,15(9):694-710.
[7]李红艳,陈治亚,赵钢,等.大风环境下P62K型空棚车横向振动偏移量试验研究[J].铁道科学与工程学报,2011,8(6):98-102.LI Hongyan,CHEN Zhiya,ZHAO Gang,et al.Research on P62K box car's lateral vibration offset under strong winds[J].Journal of Railway Science and Engineering,2011,8(6):98-102.
[8]鲁寨军,田红旗.大风环境下YW25G型客车横向振动偏移量研究[J].铁道科学与工程学报,2011,8(3):57-61.LU Zhaijun,TIAN Hongqi.Research on Y25Gpassenger-car's lateral vibration offset under strong winds[J].Journal of Railway Science and Engineering,2011,8(3):57-61.
[9]鲁寨军,周丹,熊小慧,等.兰新铁路第二双线大风条件下行车安全专项实验报告[R].长沙:中南大学,2014.LU Zhaijun,ZHOU Dan,XIONG Xiaohui,et al.Vehicle safety specific test on second two lines of Lanzhou-Xinjiang railway under strong wind[R].Changsha:Central South University,2014.
[10]米希伟,鲁寨军,钟睦.大风条件下动车组滚摆振动特性研究[J].铁道科学与工程学报,2016,13(5):806-811.MI Xiwei,LU Zhaijun,ZHONG Mu.Research on the rolling pendu lu m characteristic of the train-set u nder strong wind[J].Journal of Railway Science and Engineering,2016,13(5):806-811.
[11]LIU Dongrun,LU Zhaijun,ZHONG Mu,et al.Measurements of car-body lateral vibration induced by high-speed trains negotiating complex terrain sections under strong wind conditions[J].Vehicle System Dynamics,2018,2(56):173-189.
[12]王林栋,吴宁,文彬.风致高速列车瞬态乘坐舒适度评价指标研究[J].铁道机车车辆,2016,36(6):22-24.WANG Lindong,WU Ning,WEN Bin.Study on transient ride comfort index of high-speed trains caused by strong wind[J].Railway Locomotive&Car,2016,36(6):22-24.
[13]International Standard ISO2631-1:1997(E)Mechanical vibration and shock evaluation of human exposure to whole-body vibration-Part 1:General requirements[S].Switzerland:International Organization for Standardization,1997.
[14]UIC Code 513 Guide-lines for evaluating passenger comfort in relation to vibration in railway vehicles[Z].Paris:International Union of Railways(UIC)&European Committee for Standardization(CEN),1994.
[15]BS EN12299-2009,Railway applications.Ride comfort for passengers-Measurement and evaluation[S].European Committee for Standardization,2009.
[16]GB5595-1985,铁道车辆动力学性能评定和试验鉴定规范[S].GB5595-1985,Railway vehicles-S pacification for evaluation the dynamic performance and accreditation test[S].