横向风场作用下磁悬浮列车运动稳定性的数值研究
首发时间:2008-07-07
摘要:建立了风场作用下具有起伏、侧移、俯仰、侧滚和偏航五自由度运动的磁悬浮列车模型。以粘性不可压Navier-Stokes方程以及K-双方程湍流模型理论为基础,利用有限元分析软件ANSYS对磁悬浮列车/轨道系统的空气动力特性进行了数值分析,并研究了风荷载作用下列车的动力学行为。结果表明风速、车速、反馈增益系数对磁悬浮列车运行的稳定性有很大影响,且进一步给出具体影响规律。
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Numerical analyses on dynamic stability of maglev vehicle in side wind
Abstract:The model of maglev control system, which represents five kinds of vehicle motions such as heave, sway, pitch, roll and yaw, is established. Based on steady and incompressible N-S equation and K-turbulent model, numerical calculations for the aerodynamic characteristics of vehicle/guideway system under crosswinds are done with the use of the finite element analysis software ANSYS. The dynamical characteristics of the vehicle are studied. It is showed by the analysis result that wind velocity, vehicle velocity and control parameters are a great influence on the stability of maglev vehicle, the regularities of which are given out.
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