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Fault-area positioning method based on multisource vibration point equivalence to truck steering vibration paths and fault structure areas

A technology of structural areas, fault areas, applied in the field of automobiles

Active Publication Date: 2018-09-28
GUILIN UNIV OF ELECTRONIC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can simplify the work intensity and workload of the existing fault data analysis method, and can save analysts' analysis and solution cycle of fault problems.

Method used

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  • Fault-area positioning method based on multisource vibration point equivalence to truck steering vibration paths and fault structure areas
  • Fault-area positioning method based on multisource vibration point equivalence to truck steering vibration paths and fault structure areas
  • Fault-area positioning method based on multisource vibration point equivalence to truck steering vibration paths and fault structure areas

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Experimental program
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Embodiment

[0048] refer to figure 1 , a fault area location method based on the multi-source vibration point equivalent and fault structure area based on the truck steering vibration path, including the following steps:

[0049] 1) Establishing a vibration transmission model: with reference to the difference between the vibration source and transmission path of a truck running on a normal road, a multi-degree-of-freedom truck vibration transmission model is established, which includes the first group of front tires connected sequentially from bottom to top 1. The second group of front tires 2, the first group of rear tires 3 and the second group of rear tires 4, and the tire suspension subsystem hinged with their own tire leaf spring suspension 5, the frame 6 and the cab 10. The tire suspension subsystem is connected to the vehicle frame 6 through a tire leaf spring suspension 5, the vehicle frame 6 is provided with a gearbox 7 and an engine 15, and the cab 10 is provided with a cab seat...

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Abstract

The invention discloses a fault-area positioning method based on multisource vibration point equivalence to truck steering vibration paths and fault structure areas. The method includes the followingsteps of 1) building a vibration transmission model; 2) equivalently rearranging measurement points; 3) collecting vibration signals of the measurement points; 4) processing the vibration signals; 5)positioning a fault area. By means of the fault-area positioning method, the working strength and workloads of an existing fault data analysis method can be simplified, and a fault-problem analysis and solving period of analysts can be shortened.

Description

technical field [0001] The invention relates to automobile technology, in particular to a method for locating a fault area based on the multi-source vibration point equivalent and fault structure area of ​​a truck steering vibration path. Background technique [0002] When people are driving, the vibration problem of the car body not only brings inconvenience and distress to people, but also has an important impact on the physical and mental health of the human body. According to the relevant provisions of the national standard ISO 2613-1:1997 (E) on vibration, the human body's vibration The degree of tolerance can be evaluated by the basic evaluation method—weighted acceleration root mean square value, where when the vertical frequency weighting function w k When the frequency range is in the range of 4-8Hz, the internal organs of the human body are prone to resonance, and the vertical frequency weighting function w k In the frequency range of 8-12.5Hz, the vibration mainl...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01H17/00
Inventor 何水龙汤涛叶明松周军唐荣江刘夫云
Owner GUILIN UNIV OF ELECTRONIC TECH