Utilisation of polyurethane composit with 50% composition of roystonea regia fiber as noise reduction panel on car hood

10th International Conference Numerical Analysis in Engineering

数学;工业技术

Ikhwansyah^1 ; Mulia^1 ; Gunawan, S.^2,3 ; Lubis, R.D.W.^1

Mechanical Engineering, University of Sumatera Utara, Medan

20155, Indonesia^1

Mechanical Engineering, Sekolah Tinggi Teknologi Sinar Husni, Medan

20373, Indonesia^2

Mechanical Engineering, University of Medan Area, Medan

20223, Indonesia^3

关键词: Acoustic materials;    Casting method;    Measurement spaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/308/1/012007/pdf
DOI  :  10.1088/1757-899X/308/1/012007

学科分类：工业工程学

来源: IOP

【 摘 要 】

The objective is to get the characteristics of noise reduction, noise reduction level, variety of measurement spaces, and knowing the process in making acoustic material of natural fiber becomes noise reduction on a car hood. The process of making noise reduction material used casting method and pressed by using molded press. The composition of noise reduction material consist of 50% roystonea regia by 32 mesh and 50% combined by gypsum and polyurethane. The result shows that the average result of noise reduction at X1- side is 5,7% and X2- side is 3,9%, X1+ side is 0,9% and X2+ side is 6,2%, Z1- side is 8,9% and Z2- side is 10,1%, Z1+ side is 9,7% and Z2+ side is 10,01%. The main conclusion of the study shows that a noise reduction which made of roystonea regia with 32 mesh mixed by matrix of polyurethane and gypsum is appropriate for noise reduction on car hood.