Generator set air inlet noise reduction method

The invention relates to the technical field of generator sets, and discloses a generator set air inlet noise reduction method which is characterized in that an air inlet noise reduction bin is arranged between an air filter and an engine air inlet connecting pipe, an air inlet channel is arranged in the air inlet noise reduction bin, and a noise absorption structure is arranged in the air inlet channel; the volume of the air inlet silencing bin is larger than that of the engine air inlet connecting pipe so as to reduce the air inlet flow speed, and meanwhile the volume of the air inlet silencing bin is set according to the frequency to be subjected to noise reduction. After air enters the air inlet silencing bin, the air is refracted in the air inlet channel to reduce energy, and one-time noise reduction is achieved; inlet air flows in the air inlet channel and is adsorbed by the sound absorption structure, and secondary noise reduction is achieved. On the basis, due to the arrangement of the volume of the a