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Engineering vehicle vibration signal frequency spectrum zooming method

A spectrum refinement and vibration signal technology, applied in the field of data processing, can solve the problems of discounting the vibration control effect of construction vehicles, omission of spectrum peaks, etc., and achieve the effect of improving the efficiency of data processing and the effect of vibration control.

Active Publication Date: 2018-07-27
BEIJING MECHANICAL EQUIP INST
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Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a method for refining the frequency spectrum of vibration signals of engineering vehicles to solve the problem that the existing artificially refined data leads to the omission of spectrum peaks, which greatly reduces the vibration control effect of engineering vehicles

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  • Engineering vehicle vibration signal frequency spectrum zooming method
  • Engineering vehicle vibration signal frequency spectrum zooming method
  • Engineering vehicle vibration signal frequency spectrum zooming method

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Embodiment Construction

[0060] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0061] A specific embodiment of the present invention discloses a method for refining the frequency spectrum of vibration signals of engineering vehicles, which specifically includes the following steps:

[0062] Step 1. Place multiple acceleration sensors on the left side of the axle of the engineering vehicle, the front center of the frame, and the center of the cab floor, and pass the collected acceleration signals through the signal amplification circuit.

[0063] Specifically, the signal amplifying circuit is composed of a two-stage amplifying circuit. A second-order high-pass filter is ...

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Abstract

The invention relates to an engineering vehicle vibration signal frequency spectrum zooming method. The method includes following steps: collecting engineering vehicle vibration signals, amplifying the same, filtering the amplified vibration signals, performing integralization on data acquired by filtering, calculating data frequency after integralization to acquire effective peak frequency, calculating frequency difference value of effect peak value to judge whether frequency spectrum zooming is needed or not, and refining and repeating signals needing to be processed until all sensors are processed. By utilizing the method, the defect of poor engineering vehicle vibration control effect can be overcome, and vibration of an engineering vehicle is reduced.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a frequency spectrum refinement method for engineering vehicle vibration signals. Background technique [0002] When the engineering vehicle is running and working, it is subjected to the random excitation affected by the unevenness of the road surface and the excitation of the on-board equipment during operation. These excitations are transmitted through the tires and suspension to cause the vibration of the whole vehicle. Excessive vibration will cause serious damage to the vehicle structure and the safety of the staff. Hazards require effective control. The key step of vibration control is to analyze the spectrum of the vehicle vibration response signal to extract frequency and phase information, so as to take active control or passive control measures to reduce the vibration of engineering vehicles. [0003] Traditional spectral feature extraction and analysis genera...

Claims

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Application Information

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IPC IPC(8): G06F17/50G01H17/00G01M17/007G06K9/00
CPCG01H17/00G01M17/007G06F30/20G06F2218/02
Inventor 董建超王守银李建冬崔广志高辉
Owner BEIJING MECHANICAL EQUIP INST
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