Noise and impact sound analysis of motor-driven components with CARoLINE in End-of-Line Test

To evaluate the quality of rotating, motor-driven components in the vehicle, impact sound analyses became more and more essential. Besides the reduction of noise, it is helpful to identify noises to evaluate the quality of manufacturing.

Electronic controllers control complex electromotive components in the vehicle. The controllers are partly within the gears to drive the motor with the shifted gears, the gear wheels and connected mechanical components. Through the acoustic analyses, explicit information about the quality of subcomponents are possible.

With the help of statistical analyses and the evaluation of acoustic properties you can improve manufacturing and assembly processes.
These methods are provided by the acoustic system CARoLINE. With simple parameters, complex methods such as pulse valuation, order filter or scaling are adjustable. Via scatter diagrams/spread patterns you can test the parameters and adapt the manufacturing process.

A PLC-, Ethernet- or RS232-interface synchronize the control system of the equipment with the acoustic system.
The structured screen display analyzes the equipment and gives information about the status. Hereby, the result of the noise analysis is evaluated, visualized and centrally recorded.

use in development, test and series production
synchronous recording of up to 4 channels
I/O resources for triggering, gate control and synchronization
standard interfaces for integration into complex production lines / End-of-Line testing systems
comprehensive visualization and analysis functions
monitoring option of acoustic data recording using headphones
offline version to create / edit test sequences with the help of simulated measurement data


http://www.goepel.com/en/automotive-test-solutions/noise-and-vibration-analysis/caroline.html

Acoustic test systems for quality assurance of Automotive electromechanical assemblies from GOEPEL electronic GmbH

· use in development, test and series production
· synchronous recording of up to 4 channels
· I/O resources for triggering, gate control and synchronization
· standard interfaces for integration into complex production lines / End-of-Line testing systems
· comprehensive visualization and analysis functions
· monitoring option of acoustic data recording using headphones
· offline version to create / edit test sequences with the help of simulated measurement data

http://www.goepel.com/en/automotive-test-solutions/noise-and-vibration-analysis/caroline.html

Typical acoustic methods with CARoLINE are：

Evaluation of single or combined frequency bands, including octave or one-third octave analysis
Order analysis, also combined
Rotary speed analysis from the resonance signal or ripple power signal of the motor to be used in the order analysis or for modulation analysi
Statistical analysis for process control

Examples and applications for Acoustic analyses ：

Door modules and window-lift motors
Hatch door and automatic lifters
Vehicle seats and adjustment units
Powershift and gearing mechanism
Electric motors