Vehicle Cooling Fan Benchmarking

Industry: Automotive

Applications: Standardized Testing

An automotive OEM hired Sound Answers to assist in vehicle level sound and vibration benchmarking for cooling fan noise and vehicle sensitivity thereto. Operating noise and vibration measurements were conducted within a hemi-anechoic chamber with measurements made at customer interface locations and at key cooling fan system locations. FFT, order analysis, balancing techniques, and sound quality metrics were utilized to characterize the cooling fan systems to set vehicle level targets. The developed targets were used to gauge the current NVH performance of existing cooling fan systems, and used to set design guidelines for future platforms. In addition to developing targets Sound Answers also optimized the OEM’s current cooling fan NVH test and processing procedure.

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