TY - JOUR ID - 34714 TI - DEVELOPMENT OF A NUMERICAL TOOL AND APPLICATION OF A NOVEL NATURAL FIBRE MATERIAL FOR THE REDUCTION OF VEHICLE CABIN NOISE JO - The International Conference on Applied Mechanics and Mechanical Engineering JA - AMME LA - en SN - 2636-4352 AU - Desai, D. A. AU - Dunne, R. K. AU - Sadiku, R. AD - Doctor, Dept. of Mechanical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, South Africa. AD - Graduate student, Dept. of Mechanical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, South Africa. AD - Professor, Dept. of Chemical, Metallurgical and Material Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, South Africa. Y1 - 2018 PY - 2018 VL - 18 IS - 18th International Conference on Applied Mechanics and Mechanical Engineering. SP - 1 EP - 18 KW - Vibration KW - Automotive interior noise KW - Finite Element Analysis KW - Fluid-structure interaction KW - NVH DO - 10.21608/amme.2018.34714 N2 - ABSTRACTThe level and quality of noise experienced by occupants in transportation systemssuch as military vehicles are issues of increasing concern and are among the majorchallenges of the automotive industry apart from reducing vehicle mass and productrecyclability. Researches have shown that the vibration behaviour of panels thatenclose the passenger cabin can affect low-frequency interior noise resulting inadverse effects on the human body or vehicle occupants. However, a compellingamount of anecdotal evidence reported that the characterisation of structure-bornepanel vibration and its subsequent noise emission characteristics employingrecyclable, sound absorbing, natural fibre composites with an Acrylonitrile ButadieneStyrene (ABS) matrix has not yet been studied within a vibro-acoustic setting. Thus,the primary contribution of this original work was to implement a novel poroelasticnatural fibre damping material into a flexible numerical model to predict and improvethe vibro-acoustic performance of a vehicle’s cabin when provoked by an externalstructural forcing function. With reference to an undamped vehicle, a discrete,frequency domain numerical model is developed and experimentally validated basedon frequency response data. It was observed that the proposed numerical modeleffectively and efficiently simulates the noise levels within the vehicle model while thenewly developed natural fibre material does reduce cabin noise to a perceivabledegree. UR - https://amme.journals.ekb.eg/article_34714.html L1 - https://amme.journals.ekb.eg/article_34714_a46d13fcf7f164836b8b9e641d1579eb.pdf ER -