Communicate the process of accurately measuring sound power levels of positive displacement hydraulic pumps commonly used in ground vehicle steering systems. This recommended practice defines the pump mounting (pulley, belt tension, isolation), operating conditions (fluid, speed, temperature, pressure), room acoustics, instrumentation, noise measurement technique and data acquisition setup to be used. Included are recommendations for test sample size, and format for data presentation/reporting.
SAE J2747-2006 Referenced Document
ISO 3745:2003 Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms
SAE J2747-2006 history
2019SAE J2747-2019 Hydraulic Pump Airborne Noise Bench Test
2006SAE J2747-2006 Hydraulic Pump Airborne Noise Bench Test