基于轮轨噪声检测的列车接近报警研究  

Research on the alarming of approaching train based on detection of the wheel/rail noise

作　　者：刘正平[1] 程蔚[1] 冯召勇[1] 杨卫平[1] 

机构地区：[1]华东交通大学机电工程学院,南昌330013

出　　处：《机械设计与制造》2011年第4期204-206,共3页Machinery Design & Manufacture

基　　金：江西省研究生创新基金(YC08C002)

摘　　要：建立了轮轨激励振动的数学模型,通过Euler梁近似和降阶处理求解,得到了长钢轨的各阶固有频率;对现场采集的钢轨振动信号进行分析,发现明显存在钢轨的某些阶次特征频率分量,且这些分量的能量在列车距离传感器1000m以内时有逐渐增大的趋势。The mathematical model of the vibration by wheel-rail driving was established,through the Euler beam approximation and the reduced order processing,Solving mathematical model,the natural frequencies of long rail were obtained,The vibration signal of rail which was acquired in site was analyzed.Some order Characteristic frequency components of rail were obviously discovered in the signal,and the energies of the components which were in the distance between train and sensor within 1000 meters has the tendency of increase gradually.

关 键 词：轮轨噪声 信号处理 列车接近报警 安全 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3