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0.6米×0.6米跨超声速风洞是一座直流暂冲式风洞,风洞运行时的噪声最高达到120dB,为了降低噪声对人员和实验的影响,本文通过声学测量和理论分析噪声的特性,提出具体的降噪措施,为风洞厂房的建设提供科学依据。
The 0.6 mx 0.6 m supersonic wind tunnel is a DC transient wind tunnel with the maximum noise reaching 120 dB during the operation of the wind tunnel. In order to reduce the impact of noise on personnel and experiment, this paper presents the characteristics of the noise through acoustic measurement and theoretical analysis Specific noise reduction measures provide a scientific basis for the construction of wind tunnel factories.