轮对蛇形运动及对车-桥耦合振动的影响
|
摘要
以蠕滑理论建立横向轮轨关系的车桥动力相互作用模型,以典型高速铁路车辆通过32 m简支梁桥作为算例,研究不同车速和桥梁刚度时车桥动力耦合系统中的实际轮对蛇形运动.采用按轮轨密贴假定建立的另一种以轮对蛇形为激励的车桥动力分析模型,以蠕滑理论求出的轮对蛇形运动作为激励,与不考虑轮对蛇形运动激励时的车桥动力响应结果进行比较.结果表明,在分析桥梁动力响应时可忽略轮对蛇形运动的影响,而分析车辆动力响应时则应加以考虑.
A vehicle-bridge dynamic interaction model is established,in which the lateral wheel-rail interaction is defined by the creep theory.Then the wheelset hunting movement is calculated in the cases of a typical high speed train passing 32 m simply supported beam bridge.Another vehicle-bridge dynamic interaction model is established with the wheel-rail osculation assumption in lateral dynamic interaction,and the vehicle-bridge system dynamic responses with the lateral excitation of wheel-set hunting and without wheel-set hunting excitation are calculated and compared.The results show that the wheel-set hunting movement can be neglected when analyzing the bridge response,but it should be considered when analyzing the vehicle response.
A vehicle-bridge dynamic interaction model is established,in which the lateral wheel-rail interaction is defined by the creep theory.Then the wheelset hunting movement is calculated in the cases of a typical high speed train passing 32 m simply supported beam bridge.Another vehicle-bridge dynamic interaction model is established with the wheel-rail osculation assumption in lateral dynamic interaction,and the vehicle-bridge system dynamic responses with the lateral excitation of wheel-set hunting and without wheel-set hunting excitation are calculated and compared.The results show that the wheel-set hunting movement can be neglected when analyzing the bridge response,but it should be considered when analyzing the vehicle response.
引文
[1]夏禾,张楠.车辆与结构动力相互作用[M].2版.北京:科学出版社,2005.XIA He,ZHANG Nan.Dynamic interaction of vehiclesand structures[M].2nd ed.Beijing:Science Press,2005.(in Chinese)
[2]曾庆元,郭向荣.列车桥梁时变系统振动分析理论与应用[M].北京:中国铁道出版社,1999.ZENG Qingyuan,GUO Xiangrong.Theory and applica-tion of train-bridge time-variant system vibration analysis[M].Beijing:China Railway Publishing House,1999.(in Chinese)
[3]Liu Kai,De Roeck G,Lombaert G.Effect of dynamictrain-bridge interaction on the bridge response during atrain passage[J].Journal of Sound and Vibration,2009,325(1/2):240-251.
[4]Xu Yonglin,Zhang Nan,Xia He.Vibration of coupledtrain and cable stayed bridge system in cross wind[J].En-gineering Structure,2004,26(10):1389-1406.
[5]翟婉明.车辆-轨道耦合动力学[M].3版.北京:科学出版社,2007.ZHAI Wanming.Vehicle-track coupling dynamics[M].3rd ed.Beijing:Science Press,2007.(in Chinese)
[6]Zhang Nan,Xia He,Guo Weiwei.Vehicle-bridge interac-tion analysis under high-speed trains[J].Journal of Soundand Vibration,2008,309(3-5):407-425.
[7]Du Xianting,Xu Youlin,Xia He.Dynamic interaction ofbridge-train system under non-uniform seismic ground mo-tion[J].Earthquake Engineering and Structural Dynamics,2012,41(1):139-157.
[8]韩艳,夏禾,张楠.考虑非一致地震输入的车-桥系统动力响应分析[J].中国铁道科学,2006,27(5):46-53.HAN Yan,XIA He,ZHANG Nan.Dynamic responseanalysis of train-bridge system under non-uniform seismicexcitations[J].China Railway Science,2006,27(5):46-53.(in Chinese)
[9]曹雪琴,刘必胜,吴鹏贤.桥梁结构动力分析[M].北京:中国铁道出版社,1987.CAO Xueqing,LIU Bisheng,WU Pengxian.Bridge dy-namic analysis[M].Beijing:China Railway PublishingHouse,1987.(in Chinese)
[10]李奇,吴定俊.列车-桥梁相互动力作用下轮对横向运动规律[J].中国铁道科学,2008,29(4):70-75.LI Qi,WU Dingjun.Lateral movement regularity ofwheel set under train-bridge dynamic interaction[J].Ch-ina Railway Publishing House,2008,29(4):70-75.(inChinese)
[2]曾庆元,郭向荣.列车桥梁时变系统振动分析理论与应用[M].北京:中国铁道出版社,1999.ZENG Qingyuan,GUO Xiangrong.Theory and applica-tion of train-bridge time-variant system vibration analysis[M].Beijing:China Railway Publishing House,1999.(in Chinese)
[3]Liu Kai,De Roeck G,Lombaert G.Effect of dynamictrain-bridge interaction on the bridge response during atrain passage[J].Journal of Sound and Vibration,2009,325(1/2):240-251.
[4]Xu Yonglin,Zhang Nan,Xia He.Vibration of coupledtrain and cable stayed bridge system in cross wind[J].En-gineering Structure,2004,26(10):1389-1406.
[5]翟婉明.车辆-轨道耦合动力学[M].3版.北京:科学出版社,2007.ZHAI Wanming.Vehicle-track coupling dynamics[M].3rd ed.Beijing:Science Press,2007.(in Chinese)
[6]Zhang Nan,Xia He,Guo Weiwei.Vehicle-bridge interac-tion analysis under high-speed trains[J].Journal of Soundand Vibration,2008,309(3-5):407-425.
[7]Du Xianting,Xu Youlin,Xia He.Dynamic interaction ofbridge-train system under non-uniform seismic ground mo-tion[J].Earthquake Engineering and Structural Dynamics,2012,41(1):139-157.
[8]韩艳,夏禾,张楠.考虑非一致地震输入的车-桥系统动力响应分析[J].中国铁道科学,2006,27(5):46-53.HAN Yan,XIA He,ZHANG Nan.Dynamic responseanalysis of train-bridge system under non-uniform seismicexcitations[J].China Railway Science,2006,27(5):46-53.(in Chinese)
[9]曹雪琴,刘必胜,吴鹏贤.桥梁结构动力分析[M].北京:中国铁道出版社,1987.CAO Xueqing,LIU Bisheng,WU Pengxian.Bridge dy-namic analysis[M].Beijing:China Railway PublishingHouse,1987.(in Chinese)
[10]李奇,吴定俊.列车-桥梁相互动力作用下轮对横向运动规律[J].中国铁道科学,2008,29(4):70-75.LI Qi,WU Dingjun.Lateral movement regularity ofwheel set under train-bridge dynamic interaction[J].Ch-ina Railway Publishing House,2008,29(4):70-75.(inChinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心