Noise Source Location Experiment of Harvester
Project name: Noise Source Location Experiment of Harvester in Jiangsu University
Brief introduction：In agricultural machinery, noise is more than just an inconvenience — it affects operator comfort, machine efficiency, and environmental impact. To address these challenges, engineers need precise data on where noise originates within complex machinery such as harvesters. Identifying noise sources and their frequency components allows for effective noise control strategies and supports the development of quieter, more user-friendly machines.
At Jiangsu University, researchers conducted a Noise Source Location Experiment on a harvester to better understand its acoustic profile under full power operation. The project was carried out using Dynatronic’s advanced RE-846U dynamic number acquisition system, a tool designed for high-precision sound signal collection and analysis.
During the experiment, the harvester was operated at full capacity while the RE-846U system captured sound signals from multiple directions. The collected data was then analyzed using sound array technology, which makes it possible to map and identify the main noise sources within the machine. By breaking down the data into frequency components, researchers could pinpoint which parts of the machine contributed most to noise at different frequency bands.
To visualize the results, the team employed sound pressure cloud map processing. This technique provides a graphical representation of noise distribution, enabling engineers to quickly identify hotspots and evaluate their impact. The resulting maps offered a detailed picture of both the location and intensity of noise sources, which is invaluable for targeted noise reduction and design improvements.
The findings of this experiment are significant for the agricultural industry. By understanding the noise characteristics of harvesters at a detailed level, manufacturers can implement design optimizations to reduce sound emissions, improve operator comfort, and comply with regulatory standards. Dynatronic’s technology played a vital role in enabling this advanced analysis, helping bridge the gap between research and real-world machine performance improvements.
