摘要
针对高速列车车体与设备和悬挂之间的谐振问题,利用ANSYS对某高速列车整备车体及其车下吊挂设备进行仿真分析,结合该车体在线路试验中测得的悬挂系统的振动加速度,以此来识别车体和悬挂系统的模态参数,进而判断车体和车下设备及悬挂之间是否有谐振产生.针对该车车体仿真计算结果,为了提高车体整备状态一阶垂弯频率,质量较大的车下设备应为刚性安装,而车下设备的悬挂刚度应保持低的刚度值.为避免车体与悬挂之间发生谐振,可改变设备的质量和安装位置等.
In this paper, we mainly research the resonance problems between body and equipments/suspension system for high-speed train, use ANSYS to simulation analysis of the car body and the hanging device of a highspeed train, combined with the vibration acceleration measured by the test in the track to identify the body and suspension system modal parameters, and then determine if there is resonance between the car body and the hanging equipments and the suspension system. According to the simulation analysis results of the car body. In order to improve the body＇ s vertical bending frequency, the quality of the larger hanging devices should be rigid installation, and the value of the stiffness of hanging devices should be kept low stiffness. To avoid resonance between the car body and the hanging equipments and the suspension system, we can change the quality and installation position of the equipments.
出处
《大连交通大学学报》
CAS
2011年第6期9-13,共5页
Journal of Dalian Jiaotong University
基金
国家863计划资助项目(2009AA110303)
关键词
固有频率
谐振
车体刚度
悬挂设备
natural frequency
resonance
stiffness of body
hanging devices
