Track irregularity spectrum fitting method based on an L-M More algorithm
A track irregularity and track technology, which is applied in the field of track irregularity spectrum fitting of the More algorithm, can solve the problems that are not conducive to the evaluation of track irregularities and require a large amount of calculation, and achieve high evaluation efficiency, accurate analysis, and guaranteed safety. Effect
Inactive Publication Date: 2019-04-12
武汉子祥科技有限公司
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This patent comprehensively considers the amplitude, wavelength and spatial position information to evaluate the track irregularity state, and the amount of calculation is large, which is not conducive to the efficient and convenient evaluation of the track irregularity state
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[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] like figure 1 As shown, a fitting method of track irregularity spectrum based on the L-M More algorithm is provided, and the power spectrum is calculated and analyzed for the detected track irregularity data. Based on the fitting model, the track irregularity is fitted using the L-M More algorithm. The characteristic parameters of the smooth spectrum are used to judge the quality of the track irregularity spectrum. The method comprises the steps of:
[0024] S1. Select track...
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The invention discloses a track irregularity spectrum fitting method based on an L-M More algorithm. The method comprises the steps of selecting track irregularity samples, and classifying the selected samples according to a track structure and preprocessed; obtaining a required orbit spectrum by using an average periodic diagram method; utilizing an envelope averaging method to carry out smoothing processing on the orbit spectrum; S4, fitting the spectral lines by means of an L-M More algorithm. According to the method, a required orbit spectrum is obtained by utilizing a periodic graph method, the orbit spectrum is processed by utilizing an envelope averaging method, and then L-is utilized; the spectral lines are fit by the L-M More algorithm; therefore, the track irregularity spectrum capable of reflecting the information of the track irregularity amplitude and wavelength is obtained; according to the method, the analysis of the rail irregularity is more accurate, the evaluation efficiency of the rail irregularity state is higher, a targeted, scientific and reasonable rail maintenance plan and management method can be made accordingly, and the safety of a rail structure and thestability and comfort of train operation are guaranteed.
Description
Technical field [0001] The invention relates to the technical field of track irregularity detection, and in particular to a track irregularity spectrum fitting method based on the L-M More algorithm. Background technique [0002] With the rapid development of rail transit, the safety and comfort of its operation have become the focus of attention. The occurrence of these problems is directly related to the condition of the rail. As the driving foundation of rail transportation, the track's solid stability and correct geometric shape are the guarantee for the safe operation of vehicles. Keeping the track in good condition can, on the one hand, provide high stability of train operation and improve passenger comfort; on the other hand, it can also improve the efficiency of line maintenance and repair, save a lot of money and reduce operating costs. [0003] At present, the research on orbital conditions mainly focuses on the study of orbital irregularities. Orbital irregulari...
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IPC IPC(8): G06K9/00
CPCG06F2218/16G06F2218/04G06F2218/10
Inventor 易凯张金凯何学浩梅艾龙
Owner 武汉子祥科技有限公司