摘要
以某螺杆压缩机作为试验机,对其隔声罩所用吸声材料进行研究。结果表明,根据噪声源频谱特征、设计合适的吸声材料对隔声罩的性能改善至关重要。吸声材料优化使得隔声罩的性能插入损失提高4.4d B(A),符合预期要求。
In order to improve the performance of acoustic shield in our company＇s compressor, with a screw compressor as testing machine, sound absorption material used for the acoustic shield is researched. The results show that designing available materials have great influence on performance of acoustic shield according to noise spectrum characteristics. The optimized sound absorption material has made the acoustic shield insertion loss improved by 4.4 dB （A）, reaching expected requirements.
出处
《压缩机技术》
2016年第1期50-52,共3页
Compressor Technology
关键词
隔声罩
噪声源
吸声材料
插入损失
acoustic shield
noise source
absorption material
insertion loss
