Research on Optimisation of the Acoustic Environment of Steel Classrooms Based on Ultra-microporous Acoustic Absorbers
Relying on the cavity structure on the side of the H-beam,a super-microporous acoustic absorber integrating decorative and acoustic design is proposed.The super-microporous acoustic absorber is placed in the interior of the steel classroom,and the acoustic performance of the super-microporous acoustic absorber is investigated through the acoustic simulation and field experiments by measuring the acoustic environment conditions before and after the improvement.The results show that the super-microporous acoustic structure with a cavity depth of 150 mm and filled with 50 mm sound-absorbing cotton has better sound absorption performance,and the integrated arrangement scheme can significantly improve the reverberation time and speech intelligibility of the steel-structured classroom and improve the quality of the acoustic environment while achieving the decorative effect of the steel beams.
classroom acoustic environmentsteelworkultra-microporous acoustic absorberreverberation timeclarity of language
万方数据
维普
