薄膜阻尼结构隔声量估算和结构参数的影响实验研究  

PREDICTION OF SOUND TRANSMISSION LOSS AND ANALYSIS OF INFLUENCES OF STRUCTURAL PARAMETERS ON THE STRUCTURE WITH AIR-FILM DAMPING

作　　者：刘吉轩[1] 陈花玲[1] 扬春荣 黄协清[1] 

机构地区：[1]西安交通大学机械工程学院

出　　处：《振动与冲击》1997年第4期36-39,共4页Journal of Vibration and Shock

摘　　要：研究空气薄膜阻尼结构的隔声问题,采用统计能量分析方法估算薄膜阻尼结构的隔声量,在高频范围内理论预估值与实验值吻合较好,为其隔声设计提供了理论方法;通过实验研究了薄膜阻尼结构的有关参数变化对隔声量的影响关系,得出了一些对工程应用有指导意义的结果。In the paper the sound insulation of structures with air film damping is discussed. Sound transmission loss of the damping structure is predicted by means of statistical energy analysis (SEA) method. The results of prediction tally well with what are measured. It may be takenas a theoretical basis in structure design. Influences of changing the structural parameters upon the sound transmission loss are analyzed experimentally. The results provide some guide for engineering design.

关 键 词：空气薄膜 阻尼结构 隔声量 隔振 

分 类 号：TB535.1[理学—物理]