This paper discusses the optimization of an automotive hydraulic steering pump pulley design for improved in-vehicle pump NVH performance. Levels of steering pump whine noise heard inside a vehicle were deemed objectionable. Vehicle and component transfer path analyses indicated that the dominant noise path for the whine noise was airborne in nature. Subsequent experimental modal analysis indicated that the steering pump pulley was a major contributor to the amount of radiated noise produced by the pump/pulley system. CAE analysis was used to further analyze the dynamic behavior of the pulley and develop an optimized design with decreased noise radiation efficiency. The results predicted with the CAE analysis were verified in-vehicle, resulting in a vehicle with acceptable steering pump whine noise performance.
Pulley Optimization for Improved Steering Pump Airborne Noise Performance
Sae International Journal of Passenger Cars. Mechanical Systems
Sae Int. J. Passeng. Cars – Mech. Syst
SAE 2011 Noise and Vibration Conference and Exhibition ; 2011
Sae International Journal of Passenger Cars - Mechanical Systems ; 4 , 2 ; 1076-1085
2011-05-17
10 pages
Aufsatz (Konferenz)
Englisch
CAD, CAM, and CAE , Optimization , Radiation , Pumps , Noise
Pulley optimization for improved steering pump airborne noise performance
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