摘要
文章中给出吸声材料的弹性模量、损耗因子与其衰减系数、特性阻抗的关系式,分析了吸声材料的物理参数对有损耗媒质层吸声性能的影响,获得了吸声器具有最佳吸声性能的条件,提出为达到最佳吸收效果对材料物理参数优化的途径和优化方法的设想。
Relations between elasticity modules , loss factors , and attenuation coefficient of sound absorbing materials are given. Influence of physical parameters on sound absorption of lossy medium layers is analyzed. Conditions of optimal absorptive effect are obtained. Optimization approach to physical parameters of absorbing materials for obtaining optimal sound absorptive effect is proposed.
出处
《声学技术》
EI
CSCD
2004年第2期73-78,共6页
Technical Acoustics
