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The Booming Noise Reduction of a Vehicle Using Effectiveness Analysis
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English
Abstract
Most NVH engineers are interested in the identification of vibration transmission paths such as engine mounts to effectively reduce noise in a vehicle. To identify the contribution of each vibration source and transmission path to interior noise, effectiveness( newly defined in this paper ) is calculated. Sensitivities of interior noise levels of a vehicle to force level transmitted from the engine are calculated. When the magnitudes and phases of forces due to engine vibration are changed, synthesized noise level of a vehicle is predicted on a vector synthesis diagram. It is shown that sensitivity analysis and vector synthesis can be used to predict and control the interior booming noise of a vehicle.
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Oh, J., Cho, J., Lee, H., and Kim, T., "The Booming Noise Reduction of a Vehicle Using Effectiveness Analysis," SAE Technical Paper 971916, 1997, https://doi.org/10.4271/971916.Also In
References
- Kim J. D. “A Study on the Identification of Transmission Characteristics of Vibration to Sound for A passenger Vehicle by Using Vector Synthesis Technique” Hanyang University Korea 1994
- Oh J-E Cho J. H. Kim J. D. “Analysis of Vibration Transmissibility for Compressor of Refrigerator by Vector Synthesis Method” KSME 19 1 14 21 1995