The invention discloses a turnout vibration time delay analysis method and device, and relates to the technical field of railway engineering. The method comprises the following steps: performing EEMD decomposition on an ideal simulation signal and an actual turnout signal, and extracting a first connotation mode component of the ideal simulation signal and a first connotation mode component of the actual turnout signal; performing time redistribution multi-synchronous compression transformation on the first connotation mode components of the ideal simulation signal and the actual turnout signal to obtain a first time-frequency spectrum of the first connotation mode component of the ideal simulation signal and a second time-frequency spectrum of the first connotation mode component of the actual turnout signal; respectively carrying out time-frequency slicing on the first time-frequency spectrum and the second time-frequency spectrum at the position with the strongest vibration impact and the most concentrated frequency to obtain a first time-frequency slice of the first time-frequency spectrum and a second time-frequency slice of the second time-frequency spectrum; and calculating the cross-correlation between the first time-frequency slice and the second time-frequency slice to obtain the time delay information of the actual turnout signal. The accuracy of turnout vibration time delay analysis can be improved.
本发明公开了一种道岔振动时延分析方法及装置,涉及铁路工务技术领域;其中该方法包括:对理想仿真信号、实际道岔信号进行EEMD分解,提取理想仿真信号的第一内涵模态分量和实际道岔信号的第一内涵模态分量;对理想仿真信号、实际道岔信号的第一内涵模态分量做时间重分配多同步压缩变换,得到理想仿真信号的第一内涵模态分量的第一时频谱、实际道岔信号的第一内涵模态分量的第二时频谱;在振动冲击最强且最集中频率处,分别对第一时频谱、第二时频谱做时频切片,得到第一时频谱的第一时频切片、第二时频谱的第二时频切片;计算第一时频切片与第二时频切片的互相关,得到实际道岔信号的时延信息。本发明可以提高道岔振动时延分析的准确性。
Turnout vibration time delay analysis method and device
道岔振动时延分析方法及装置
2023-03-28
Patent
Elektronische Ressource
Chinesisch
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