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Exterior Engine Noise Prediction Utilizing an Acoustic Tube by the Volume Velocity Measurement Method
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 05, 2003 by SAE International in United States
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An acoustic tube was developed and applied to measure the engine radiation noise for the prediction of the steady state exterior engine noise. Using accelerometers to measure the engine surface vibration is a difficult task, especially for the places like the exhaust manifold. The proposed method, an acoustic tube containing a microphone is set at a given distance from the engine and measurements were carried out in such a way that the whole engine surface was covered. Exterior engine noise at a certain distance from the vehicle was predicted by using the measured volume velocity values and propagation characteristics. The predicted results agreed well with previously experimented values.
CitationNakamura, M. and Nakano, M., "Exterior Engine Noise Prediction Utilizing an Acoustic Tube by the Volume Velocity Measurement Method," SAE Technical Paper 2003-01-1444, 2003, https://doi.org/10.4271/2003-01-1444.
- Nishimura Haruki et al Analysis of Sound Field for Vehicle Exterior Noise Using Boundary Method JSAE 1993
- Nishimura Haruhiko et al. Analysis of Acoustic Radiation Characteristics of Engine Compartment and Application to Reduction of Pass-by Noise JSAE 1996
- Maruyama Shinichi et al. Reciprocity Technique for Analysis of Sound Radiation from Vibration Components of Vehicles Transactions of JSME (C) 62-597 1996
- Nakamura Masahiro Principles Estimation Sound Radiation Level at a Far Point Based on the Reciprocity Theorem 73rh JSME Conference
- Nakamura Masahiro Principles Estimation Sound Radiation Level at a Far Point Based on the Reciprocity Theorem Transactions of JSME (C) 63-616 1997
- Nakamura Masahiro Nakano Mitsuo Vibration Measuring Method Using Acoustic Tube Transactions of JSME (C) 66-646 2000 Applications to Noise Control ACUSTIC 8 1995
- Fahy F.J. Vibro-Acoustic Reciprocity Principle and Applications to Noise Control ACUSTIC 8 1995