Analysis of Friction Noise and Vibration from the Cushion Frame of a Driver's Seat in Passenger Cars

Abstract

In this study, the vibration and noise for the cushion frame that directly contacts the driver of the car are investigated. The friction noise from the seat track generating the largest noise is measured and analyzed. Also, vibration measurement and analysis are performed in parallel to locate the position from where the noise is generated. In the next stage, the RPM of motor and the current changes during motor driving are measured. The vibration and noise generated during motor running are also measured and analyzed to examine the interaction between noise from the track and load on the motor. The vibration and noise analysis results are expressed using FFT analysis, octave analysis, spectrum contour map analysis, and sound visualization.