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Drive axle assembly vibration rapid detection method

A drive axle assembly and detection method technology, applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve problems such as non-reliance, and achieve the effects of quelling customer complaints, improving design, and improving process level

Inactive Publication Date: 2020-07-28
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art above, to provide a test method for quickly testing the vibration levels of drive axles under different operating conditions without relying on a special NVH test device on the durability test stand; the test method can Accurately measure the abnormal vibration of the drive axle assembly, and quickly and accurately identify the location and vibration energy level of the vibration according to the global trend analysis, order spectrum analysis, waterfall diagram analysis, and heat map analysis of the vibration test data, greatly improving the vibration investigation Causes and work efficiency in solving vibration and noise issues of customer concern

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  • Drive axle assembly vibration rapid detection method
  • Drive axle assembly vibration rapid detection method
  • Drive axle assembly vibration rapid detection method

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Embodiment Construction

[0022] In order to solve the problem of excessive vibration and noise of the vehicle drive train suspected to be caused by the drive axle in use by some vehicle users, it is necessary to quickly and accurately test the vibration data of the drive axle during operation.

[0023] The method for quickly detecting the vibration of the drive axle assembly of the present invention installs the drive axle assembly on the gear fatigue test bench of the drive axle assembly; conducts various target operating conditions according to the designed test process, and passes the fault diagnosis expert system The vehicle speed vibration trend relationship curve obtained from the vibration test can identify the vibration energy change with the vehicle speed change, and use the vibration analyzer that comes with the test bench to collect and record vibration data; use DA Evaluation software for real-time or post-test data analysis, order Calculations and order analysis quickly locate components w...

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Abstract

The invention belongs to the technical field of automobile drive axle operation vibration testing, and relates to a drive axle assembly vibration rapid detection method. A drive axle fatigue life testbench and a vibration fault diagnosis system thereof test a vibration condition; on the basis of a vehicle speed vibration trend relation curve of vibration test data, vibration order spectrum analysis, vibration waterfall plot analysis and heat map analysis, a position where vibration is generated and a vibration energy level are rapidly and accurately recognized, so that the vibration source ofa drive axle assembly can be rapidly recognized. A convenient and quick basis is provided for improving design, improving THE process level and calming customer complaints.

Description

technical field [0001] The invention belongs to the technical field of operating vibration testing of automobile drive axles, and in particular relates to a rapid detection method for vibration of drive axle assemblies. Background technique [0002] At present, some vehicle users have many complaints about the excessive vibration and noise of the drive train of the drive axle, and the vehicle department cannot identify the vibration source. The control of vibration and noise in the production and assembly process of automobile drive axle mainly depends on structural design and process adjustment. In the assembly process of drive axle assembly, there is almost no process detection of vibration and noise. Abnormal vibrations often appear on the user's vehicle under different conditions of use, causing trouble to the user, and the service personnel cannot judge it, let alone solve it. [0003] So far, there is no relevant report on the vibration test method of the drive axle a...

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Application Information

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IPC IPC(8): G01H17/00G01M17/007
CPCG01H17/00G01M17/007
Inventor 金光保万全李士杰袁立国范春利李凯赵文华徐伟健黄晶晶吴乃云
Owner FAW JIEFANG AUTOMOTIVE CO
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