Sound transmission loss of double-layered structure plates and pasted damping

Yuan, Zhong-Xiang; Xiao, Yi Lun

doi:10.1007/s40430-020-02765-w

Cited by 3 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Step 1: Determination of optimal measurement distance d op . First, at room temperature, STL (STL 0 ) was measured via SIM and calculated using equations ( 13) and (14).…”

Section: Measurement Processmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of sound transmission loss characteristics of aircraft composite panel under variable temperature environment

Peng

Dong

Yan

2022

Journal of Low Frequency Noise, Vibration and Active Control

View full text Add to dashboard Cite

An improved sound transmission loss (STL) experimental technique based on the sound pressure method (SPM) and acoustic box method is proposed to investigate the temperature influence on the STL of the ribbed carbon fiber reinforced plastics aircraft panel. SPM principle is given. The measurement procedure of the improved STL technique is presented and its reliability is verified. STL variable characteristics of the panel within −40°C–40°C were measured. Results showed that temperature had a significant effect on the panel’s STL. The overall STL varied nonlinearly with temperature, whereas STL exhibited a fluctuation or monotony trend at a single center frequency. Temperature variation caused changes of STL peak/dip frequencies and redistribution of stiffness-controlled, resonance-controlled, coincidence-controlled, and damping-controlled regions. The causes of the aforementioned are given. This study reveals the relationship between temperature, thermomechanical parameters and STL. The findings have applications in the design, measurement, analysis, and theoretical development of composite structure acoustics.

show abstract

“…Step 1: Determination of optimal measurement distance d op . First, at room temperature, STL (STL 0 ) was measured via SIM and calculated using equations ( 13) and (14).…”

Section: Measurement Processmentioning

confidence: 99%

“…However, the main concerns were sound transmission mechanism, [7][8][9] numerical simulation method, [10][11][12][13] and composite acoustic design. [14][15][16] The influence of thermomechanical behavior on composite structures' STL is still a field of sporadic research.…”

Section: Introductionmentioning

confidence: 99%