Research on Noise Control and Simulation Optimization of Cooling Fan in Ship Display Console

The display console is a very important part for the ship's electronic information system. In order to study the noise characteristics and effectively control the noise value of the cooling fan in ship display console. Firstly, the theoretical analysis of the cooling fan noise source was carried out, and the frequency spectrum test method was used to identify the cooling fan noise of the display console. Secondly, the optimization design and noise control method were proposed from the optimization of the structural parameters, performance parameters and space matching parameters of the cooling fan. Finally, compared and analyzed the aero-acoustic performance of the optimized cooling fan and the original cooling fan. It is Concluded that the noise and sound pressure level of the optimized cooling fan is 6.6dB lower than that of the original fan. This research reduced the noise of cooling fan, which provide reliable analysis and guidance for the design of fan acoustic noise reduction.