Laser Doppler vibrometer and accelerometer for vibrational analysis of the automotive components during Simulink simulation for validation

TL;DR

This study evaluates the laser Doppler vibrometer's effectiveness in non-destructive automotive component testing, comparing it with accelerometers and validating results through Simulink simulations, demonstrating its industrial applicability.

Contribution

It introduces LDV as a viable alternative to traditional methods for automotive vibrational analysis, validated through experimental and simulation data.

Findings

LDV accurately measures automotive component frequencies.

LDV performance is comparable or superior to accelerometers.

Simulation confirms experimental results.

Abstract

In current research, laser Doppler vibrometer (LDV) as a new diagnostic tool is utilized for non-destructive testing of the automotive equipment. LDV technique is working based on measurement of the Doppler shift of a moving object in an interference set-up. The effects of different noises are considered and eliminated from data analysis. Here, the performance of LDV technique is compared with a reference accelerometer device. Furthermore, a simulation by Matlab Simulink is added to the analysis which confirms the results of the experimental data. Results demonstrated that the laser Doppler vibrometer can measure excellently the frequencies of different automotive components for employing in industry. Therefore, it is proposed that LDV technique can be substituted with other traditional non-destructive testing methods.