论文部分内容阅读
原采用的“加速度峰值评价法”因踏面损伤冲击波形与钢轨共振波形重叠而导致踏面损伤检测结果与实际损伤有较大误差。为了提高检测精度 ,在原检测法基础上开发成功了“频率特性修正处理法”和“实效值评价法”。在测定加速度峰值的基础上经频率特性修正处理和实效值评价 ,使检测精度得到显著提高 ,从而可以对各种车轮踏面损伤进行自动测定。根据上述原理制成的踏面损伤检测装置由加速度检测器、模拟滤波回路、频率特性修正回路、实效值计算回路、最大值检测回路、计算机及数据库组成 ,现已投入实际应用。
The original “acceleration peak evaluation method” has a big error between the tread damage detection result and the actual damage due to the overlapping of the impact waveform of tread damage and the resonance waveform of the rail. In order to improve the detection accuracy, based on the original detection method developed “frequency characteristics correction method” and “effective value evaluation method.” Based on the determination of the acceleration peak, the frequency characteristic correction and the practical value evaluation are carried out, so that the detection precision is significantly improved, so that various wheel tread damage can be automatically measured. The tread damage detection device made according to the above principle is composed of an acceleration detector, an analog filter loop, a frequency characteristic correction loop, an actual value calculation loop, a maximum value detection loop, a computer and a database, and has been put into practical application.