Progresses in Pass-by Simulation Techniques

Genuit, Klaus; Guidati, Sandro; Sottek, Roland

doi:10.4271/2005-01-2262

Cited by 11 publications

(30 citation statements)

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“…[3,14]. It is concluded that the vehicle noise sources are significantly influenced by engine speed.…”

Section: Pass-by Noise Frequency Contentmentioning

confidence: 96%

“…The number of microphones depends on the spacing and the size of the chamber, for example Ref. [14] reports 15 microphones per side and Ref. [40] reports 19 per side.…”

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

“…The indoor simulation can be run fully automatically and is well controlled, which provides good experimental repeatability, which cannot always be achieved by a driver in road tests [14,40,41]. Since the vehicle and microphones are stationary, an inverse approach has to be applied in order to estimate the pass-by noise level against track position from the sound pressure recordings of each microphone [14]. Basically, the microphones in the front of the vehicle determine the pass-by noise when the vehicle 'enters' the test track, while the microphones behind the vehicle determine pass-by noise when the vehicle 'leaves' the test track.…”

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

“…The speed and load conditions of the real pass-by test are simulated by means of the chassis dynamometer enabling acceleration or constant-speed driving conditions, while sound pressure is recorded by the microphones. The indoor simulation can be run fully automatically and is well controlled, which provides good experimental repeatability, which cannot always be achieved by a driver in road tests [14,40,41]. Since the vehicle and microphones are stationary, an inverse approach has to be applied in order to estimate the pass-by noise level against track position from the sound pressure recordings of each microphone [14].…”

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

“…A large chamber provides enough space to cover the square between the lines of AA' and BB' of the pass-by noise test. Microphones are arranged in a line array on both sides of the vehicle at a distance of 7.5 m to its centre line and at a height of 1.2 m. The spacing between microphones is either constant, for example 1 m, or varying with a smaller spacing where the highest noise levels are expected [14,40]. The number of microphones depends on the spacing and the size of the chamber, for example Ref.…”

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

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Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

et al. 2013

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A B S T R A C TSince many people are exposed to road traffic noise in urban areas, current legislation aims to limit vehicle noise emissions. In Europe, the vehicle pass-by noise test is implemented according to the international standard ISO 362. As a result of more recent investigations of urban traffic, a revision to the ISO 362 standard has been proposed that includes a constantspeed test in addition to the traditional accelerated test in order to determine the pass-by noise value. To ensure compliance with the pass-by noise test vehicle manufacturers and suppliers must quantify vehicle noise source characteristics during the design stage of the vehicle. In addition, predictive tools need to be available during the product development phase in order to estimate the final pass-by noise level. In this paper an extensive literature survey is presented of noise source characteristics in the ISO 362 vehicle pass-by noise test. Vehicle pass-by noise is analysed in the time and frequency domains and a ranking of the noise source contributions is established. The characteristics of the four major noise sources (engine, intake system, exhaust system, tyre/road system) contributing to pass-by noise as well as current prediction methods are reviewed.

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“…[3,14]. It is concluded that the vehicle noise sources are significantly influenced by engine speed.…”

Section: Pass-by Noise Frequency Contentmentioning

confidence: 96%

“…The number of microphones depends on the spacing and the size of the chamber, for example Ref. [14] reports 15 microphones per side and Ref. [40] reports 19 per side.…”

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

Section: Indoor Simulation Of Pass-by Noise With Microphone Arraysmentioning

confidence: 99%

See 3 more Smart Citations

Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

et al. 2013

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Principles of Noise and Vibration Control

2020

Engineering Acoustics

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Pass-by noise: regulation and measurement

Wang

2020

Automotive Tire Noise and Vibrations

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Progresses in Pass-by Simulation Techniques

Cited by 11 publications

References 0 publications

Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

Principles of Noise and Vibration Control

Pass-by noise: regulation and measurement

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