铁道车辆蛇行稳定性主动控制综述

为了抑制蛇行运动,提高列车临界速度,针对铁道车辆特殊的轮轨自激振动系统综述了蛇行稳定性主动控制的总体结构形式、控制目标、控制算法、测量系统、作动系统、试验验证等关键环节的研究进展;概括了稳定性控制的典型结构形式及其各自的特点;根据不同运用场景,归纳了稳定性主动控制的主要目标,梳理了稳定性控制的主要算法以及优缺点;分析了...

Review on active control of hunting stability for railway vehicles

In order to suppress the hunting motions and thus increase the critical speed of vehicles, the structure concepts, control objectives, control algorithms, measurement systems, actuation systems and experimental verifications were reviewed on the active control of hunting stability for the special self-excited vibration system of railway vehicles. The typical structural concepts and their characteristics were summarized. The main objectives of active stability control were concluded according to the different application scenarios, and the algorithms of stability control were also summarized, including their advantages and disadvantages. The feasibility and reliability of different feedback measurement methods were analyzed, and the influence of actuator dynamic characteristics on the control effect was commented. The experimental methods of active stability control were given, and the future research focus of active stability control were prospected with respect to algorithm design, failure safety, and some other aspects. Analysis results show that in the active control of hunting stability, the selection of control concept and algorithm should consider the different control objectives. In addition to the active control of secondary hunting stability under high wheel-rail combination conicity, the active control of primary hunting stability under low wheel-rail combination conicity should also be considered. The structure concept should be simple, reliable and easy to be implemented, and has a low requirement for the measurement system. The measurement system should be simple and measurable as far as possible to reduce the influence of random disturbance and noise on the reliability of measurement results. The practical effectiveness of active control of hunting stability is determined by the response time of actuator and the compensation method of time delay. The control system can not affect the safety of train operation after its failure, which is the most crucial aspect to decide the application of active control. 14 figs, 87 refs.