磁悬浮列车电磁干扰的测试及研究

针对上海磁悬浮列车在沿线某一定范围内的无线电噪声测试及结果，就磁悬浮列车对周围环境中的重要发信场和收信场以及移动通信等的潜在干扰作初步的评价和研究，为今后磁悬浮铁路的建设提供有意义的预测和建议。     

Analysis of dynamic response of the high-speed EMS maglev vehicle/guideway coupling system with random irregularity

A new dynamic model of a high-speed EMS maglev vehicle/guideway interaction is presented. The model considers the vehicle and the guideway as an integral system and couples vertical interaction with lateral interaction. The vehicle subsystem is modeled as a multi-body system, which runs on the guideway with a constant velocity. The guideway substructure is modeled as an elastic beam. The attractive magnetic forces between vehicle and guideway are decided by controller, observer, and filter. A special simulation program is developed. Numerical results of the program are compared with test results. The results show that the coupling model is appropriate and the simulation program is credible primarily. Applications of coupling model to the investigation of the effect of irregularities on maglev system are reported at the end of the paper. The studies in this paper can be used to evaluate and optimize dynamic performances of the high-speed EMS maglev system.     

高速磁悬浮列车纵向及垂向气动力数值分析

采用数值分析的方法研究高速磁悬浮列车在纵向风作用下所受气动力和力矩。利用三维粘性定常不可压缩Navier Stokes方程,k～ε两方程紊流模型,采用有限体积法计算高速磁悬浮列车在不同运行速度条件下20个工况点的气动阻力,升力和俯仰力矩;分析了车下空气隙尺寸对上述气动力的影响,并与轮轨型列车的气动力特征作了比较。计算结果表明,车下空气隙的大小对列车运行的空气阻力只有微小的影响,但对气动升力的影响较大;随着车速的提高,气动阻力、升力和俯仰力矩均有较大幅度提高,不同的计算模型其提高幅度是不一样的。     

磁悬浮车辆系统动力学研究

磁浮列车技术经过30余年的研究与发展,目前已经出现了以德国TR08、日本MLX01和HSST-100为代表的具备商业运营水平的磁浮交通系统.我国的中低速磁浮列车技术研究经过近20年的发展,已经在悬浮和导向等关键技术上取得重大突破,开始进入试验线建设与试运行阶段.地面交通车辆的动力学问题直接影响其技术经济性及应用前景,因此,及时开展磁浮车辆系统动力学研究具有重要的理论意义和工程应用价值.     

"网运分离/干支分离"模式下磁浮交通项目财务评价影响研究

基于磁浮交通系统技术特点的"网运分离/干支分离"新模式,产生了三类新的经营实体--运营公司、干线路网公司和支线路网公司,这对磁浮交通项目将产生很大的影响.对这三个经营实体进行经济评价要素的分离和界定,用来对每个经营实体自身的经营活动进行财务评价.