Ali Ahmadnia, Peter Allan, Rob Withnall, and Jack Silver
Posters # 2010 Vancouver
The acoustic properties of polypropylene, polyethylene and PVC which are widely used in the automotive, construction and pipe industries were measured. The acoustical parameter selected for this study is ‘sound transmission loss’. Acoustic tests were conducted using a Bruel & Kjaer acoustic tube with four microphones installed to determine sound transmission loss (STL) data from a 100mm diameter test piece. This method in comparison with the existing STL standards is less costly and requires less space and time. This work has been carried out in collaboration with the manufacturer of the acoustic test equipment (Bruel & Kjaer) to assess the possibility of developing a recognised standard for this test. Keywords : Sound transmission loss. Acoustic testing. Polymers.