Collaborative Optimization of Phononic Crystal Pipe Based on Revolving Helmholtz Resonators for Air Compressor System in FCEVs

This study aims to design a Helmholtz resonator to realize the demand for control of high-frequency noise in air compressors.

A phononic crystal pipe based on revolving Helmholtz resonators is proposed in this paper and through the optimal screening about structural parameters, the collaborative optimization of noise attenuation under multi-frequency band is realized.

The findings show that the total band-gap width of the optimized phononic crystal increases by 13% to 2297 Hz and its transmission loss is greater than 10 dB, which effectively alleviates the broadband noise of the air compressor.

This research presents a systematic approach to the design, simulation, and testing of phononic crystals providing an efficient method for broadening band-gap characteristics on phononic crystals and attenuating broadband noise of air compressor systems.