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A Spectrum Refinement Method for Engineering Vehicle Vibration Signals

A spectrum refinement and vibration signal technology, applied in the field of data processing, can solve problems such as discounting the vibration control effect of engineering vehicles and missing spectrum peaks

Active Publication Date: 2021-11-02
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A Spectrum Refinement Method for Engineering Vehicle Vibration Signals
  • A Spectrum Refinement Method for Engineering Vehicle Vibration Signals
  • A Spectrum Refinement Method for Engineering Vehicle Vibration Signals

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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 a frequency spectrum refinement method for engineering vehicle vibration signals, comprising the following steps: collecting engineering vehicle vibration signals, amplifying the engineering vehicle vibration signals, filtering and processing the amplified vibration signals, and normalizing and processing the filtered data, Calculate the frequency of the integrated data to obtain the effective peak frequency, calculate the frequency difference value of the effective peak to determine whether spectrum refinement processing is required, refine the signal to be processed, and repeat the process until all sensors are processed. By using the above method, the defect that the vibration control effect of the engineering vehicle is not good can be solved, and the vibration of the engineering vehicle can be 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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G01H17/00G01M17/007G06K9/00
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