Abstract

This research is a continuation of the work aimed at analyzing the parameters of ultrasonic signals during high-speed rail inspection. The analysis of the behavior of the amplitudes of the sequences of bottom signals in the zone most problematic for the continuous-welded track, i.e., the zone of the welded joints of rails, has been carried out in a wide range of inspection speeds. It is shown that, starting from certain scanning speeds, in accordance with the current regulatory and technical documentation, many zones of welded joints can be attributed to unscanned areas. The research results can be used to optimize the designs of scanning systems for high-speed diagnostic systems and to substantiate permissible rail-track scanning speeds.

中文翻译：

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高速超声检测钢轨焊缝区域底部信号参数分析

摘要

本研究是高铁检测中超声波信号参数分析工作的延续。对连续焊接轨道最有问题的区域，即钢轨焊接接头区域中底部信号序列的幅度行为的分析已经在很宽的检测速度范围内进行。结果表明，从某些扫描速度开始，根据当前的法规和技术文件，焊接接头的许多区域都可以归因于未扫描区域。研究结果可用于优化高速诊断系统扫描系统的设计，并证实允许的轨道扫描速度。