磁浮轨道梁姿态高灵敏监测技术及其应用

High sensitivity monitoring model and dynamic calculation of GNSS for maglev track beams

摘要:

针对动/静态运行下的磁浮列车与轨道梁相互作用所产生的振动变形进行了研究；在没有惯性导航系统的情况下，提出了使用全球导航卫星系统（GNSS）接收机同步多天线组载波相位纠缠差的概念；利用全球导航卫星系统（GNSS）技术的理论与方法融入对磁浮轨道梁三维空间高精度实时监测与定位; 在静态和动态实验中实现了高灵敏且误差累积小的偏航、俯仰角和滚转角姿态的时-空同步监测；从得到的数据中获得桥面多自由度矢量振动形变的规律；同时，对轨道进行多阶模态的建模，探索在时间同步，通信协同策略下的“车-桥”耦合动力学的问题，在“人工智能+交通”的交叉创新领域上形成相关的解决方案和技术体系；推进桥面发生边坡蠕滑等自然灾害的预警与精准治理，经过实际应用满足磁浮列车的安全与平稳性运行需求；

Abstract:

To analyze the vibration deformation caused by the interaction between maglev trains and track beams under dynamic/static operation；In the absence of inertial navigation system, the concept of synchronous multi-antenna group carrier phase entanglement difference using global navigation satellite system （GNSS）receivers is proposed; The theory and method of GNSS technology are incorporated into the high-precision real-time monitoring and positioning of magnetic levitation track beams in three dimensions. In the static and dynamic experiments, the time-space synchronous monitoring of yaw, pitch and roll angles with high sensitivity and small error accumulation is realized, and the law of multi-degree of freedom vector vibration deformation of the bridge deck is obtained from the obtained data; At the same time, multi-order modal modeling of the track is carried out to explore the "vehicle-bridge" coupling dynamics under time-synchronous and communication cooperative strategies，to develop solutions and technology systems in the cross-innovation field of "artificial intelligence + transportation";Promote the early warning and precise management of natural disasters such as slope creep and slip on bridge decks, and meet the safety and smooth operation requirements of maglev trains after practical application;