This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Optimization of Radiator Fan for NVH Improvement
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 10, 2017 by SAE International in United States
Annotation ability available
With the development of automobile industry, customer awareness about NVH (Noise, Vibration and Harshness) levels in passenger vehicles and demands for improving the riding comfort has increased. This has prompted automobile OEMs to address these parameters in design stage by investing resources in NVH research and development for all components. Better NVH of Radiator Fan Module (RFM) is one of the parameters which contributes to cabin comfort. The basic objective of RFM is to meet engine heat rejection requirements with optimized heat transfer and air flow while maintaining NVH within acceptable levels. The rotating fan (generally driven by an electric motor), if not balanced properly, can be a major source of vibration in the RFM. The vibration generated thus, can be felt by customer through the vehicle body. This paper discusses about methods used to measure body vibration, to identify the source component of vibration (RFM in this case) and to correlate the body vibration with component level vibration. The test results show a good relationship between RFM vibration and vehicle vibration.
CitationKumar, S. and Talwar, H., "Optimization of Radiator Fan for NVH Improvement," SAE Technical Paper 2017-26-0210, 2017, https://doi.org/10.4271/2017-26-0210.
- Weichao , Z. , Jun , Z. , Jian , P. , Qin , Z. , Wei , W. Analysis of Steering Wheel Beating Vibration for Dual-Fan Cooling System Changan Auto Global R&D Center Chongqing 401120, China 2014
- Gadasu , R. , Khatri , A. , and Parmar , A. NVH Improvement by Design Optimization in Radiator Fan Module SAE Technical Paper 2015-26-0141 2015 10.4271/2015-26-0141
- Suzuki , A. and Soya , A. Study on the Fan Noise Reduction for Automotive Radiator Cooling Fans SAE Technical Paper 2005-01-0601 2005 10.4271/2005-01-0601
- Morgan , W. Vibration Analysis of an Electric Motor Fan Assembly SAE Technical Paper 971854 1997 10.4271/971854