<i>Mechanical Sound: Technology, Culture, and Public Problems of Noise in the Twentieth Century (Inside Technology)</i>

Schulte‐Fortkamp, Brigitte

doi:10.1121/1.3117684

Cited by 2 publications

References 111 publications

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Noise Source Identification of the Grain Combining Harvester Based on Acoustic Array Test

Shang¹,

Wang²,

Xu³

et al. 2020

Applied Engineering in Agriculture

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HIGHLIGHTSWe tested the noise of a grain combining harvester using a spiral acoustic array, aiming to identify its main sources and reduce its noise level.The noise of the harvester is mainly concentrated in the frequency range of 1 to 4 kHz.When the power of other devices is cut off, engine is the main noise source. While all devices are in normal working condition, the main source of noise is the header device and the intermediate conveying device.Abstract. The grain combine harvester is an important agricultural equipment with multiple functions of harvesting, threshing, separating, cleaning and grain gathering. As an instantaneous physical pollution, noise has become one of the main causes of modern civilization diseases. The noise generated by the operation of harvesters not only causes harm to the workers, but also leads to environmental noise pollution. Here, we tested the noise of a grain combine harvester using a spiral acoustic array, aiming to identify its main source by noise source identification technology based on the sound pressure distribution and reduce its noise level. The test results show that the noise of the harvester is mainly concentrated in the frequency range of 1 to 4 kHz. When the power of other devices is cut off, the engine is the main noise source, while under normal working conditions of all devices, the main source of noise is the header device and the intermediate conveying device on the front side of the harvester, the threshing device on the rear side, the engine and the threshing device on the left side, and the engine and the header device on the right side. Keywords: Acoustic array technology, Grain combining harvester, Noise source identification, Vibration and noise reduction.

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Noise Source Identification of the Grain Combining Harvester Based on Acoustic Array Test

Shang¹,

Wang²,

Xu³

et al. 2020

Applied Engineering in Agriculture

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The design and implementation of a smartphone-based acoustic array system for DOA estimation

Bao

Wang

2017

2017 36th Chinese Control Conference (CCC)

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Mechanical Sound: Technology, Culture, and Public Problems of Noise in the Twentieth Century (Inside Technology)

Cited by 2 publications

References 111 publications

Noise Source Identification of the Grain Combining Harvester Based on Acoustic Array Test

Noise Source Identification of the Grain Combining Harvester Based on Acoustic Array Test

The design and implementation of a smartphone-based acoustic array system for DOA estimation

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