Experimental Study the Vibro-Acoustic performance of a Double Glazed Window
This paper presents an experimental investigation of the sound transmission and structural vibration characteristics of the double glazed window.The laboratory experiments were performed placing the window between reverberation chamber and anechoic chamber.The window was subject to diffuse field,approximate normal wave and oblique wave acoustic excitations.The sound transmission performances at far-field were measured.Furthermore,experimental modal analysis has been performed.The Least square complex exponential algorithm is used to extract the modal parameters,i.e.mode shapes,natural frequencies and modal damping ratio of the structure.The results also show that the highest sound transmission of this experimental double glazed window appears around the mass-air-mass resonance frequency.
Sound transmission double glazed window experimental modal analysis mode shape mass-air-mass resonance frequency
Qibo MAO
School of Aircraft Engineering,Nanchang HangKong University,Nanchang,330063,P.R.China
国际会议
西安
英文
1129-1132
2012-06-12（万方平台首次上网日期，不代表论文的发表时间）