摘要
对轮轨间相互作用力的准确测量是监测列车运行安全状况的前提和基础。分析了测力轮对间断测量和连续测量方法,通过研究轮轨接触状态的变化特征,建立了轮轨接触力估计状态空间模型,提出基于状态估计的测力轮对轮轨力计算方法;在此基础上进行了仿真计算验证了算法的有效性,并在线路试验中以简单的间断测量测力轮对实现了轮轨力的连续测量。
Accurate measurement of wheel / rail force is the premise and basis of monitoring the train operation status. The discontinuous and continuous measurement methods of instrumented wheelset were analysed,the variable characteristics of wheel / rail contact state were studied,the space model for wheel / rail contact force state estimation was established and the wheel / rail force calculation method based on state estimation was proposed. The algorithm was verified by simulation calculations. Moreover,a continuous measurement was achieved in actual track test by using a simple discontinuous instrumented wheelset.
出处
《振动与冲击》
EI
CSCD
北大核心
2015年第9期111-115,共5页
Journal of Vibration and Shock
基金
国家自然科学基金青年科学基金项目(51405404)
关键词
测力轮对
状态估计
间断测量
连续测量
instrumented wheelset
state estimation
discontinuous measurement
continuous measurement
