采用驻波理论的一种特殊的隔声结构

摘要

在为相对狭小声源作隔声处理过程中,考虑到声音传播时出现类似管道中的驻波现象,通过理论计算,设计新型的隔声结构.经真实的实验研究结果验证,这种结构不仅能有效地吸收隔声,还能防止因驻波现象对机器本身造成的不良影响.%Anew sound isolation structure is designed on the base of stationary wave theory for sound isolation processing of the relatively small noise sources with their waves propagating in narrow paths as in the ducts. This design is confirmed by an in-situ experiment. Results show that this structure is effective in sound absorption, and can eliminate the adverse impact of the stationary wave on machine itself.