Prediction of sound transmission through elastomeric bulb seals

Date

2014-01-01

Author

Atamer, Serkan
Çalışkan, Mehmet
Özgen, Gökhan Osman

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Doors are the weakest parts of the buildings in terms of sound transmission. Examination of sound transmission loss characteristics of doors reveals two separate transmission paths to be considered. First one is transmission through door leaf and the second one is leak transmission through elastomeric bulb seals. Seals are the important parts of the sound transmission loss characteristic of door structure. Hence, their insulation capability should be analyzed and optimized to improve sound transmission loss of an acoustical door. The aim of this research is to predict sound transmission loss of elastomeric bulb seals. This assessment includes two main steps. A static analysis is required to determine the seal shape under compression. Seals are made of elastomers which display nonlinear mechanical behavior. This requires hyperelastic material modeling and nonlinear finite element analysis (FEA). An acoustic analysis calculating the sound transmission is then carried on deformed geometry acquired from the first phase of the research. A sample seal geometry, which is already being used in industry, is considered as the case study. Influences of different hyper elastic material models on sound insulation are also studied.

Subject Keywords

Sound transmission loss, Elastomeric bulb seals, Hyperelasticity

URI

https://hdl.handle.net/11511/72794

Conference Name

43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 (16 - 19 Kasım 2014)

Collections

Department of Mechanical Engineering, Conference / Seminar

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Citation Formats

S. Atamer, M. Çalışkan, and G. O. Özgen, “Prediction of sound transmission through elastomeric bulb seals,” presented at the 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 (16 - 19 Kasım 2014), Melbourne, Avustralya, 2014, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72794.