Study of Noise, Vibration and Harshness (NVH) for Malaysian Army (MA) 3-Tonne Trucks

Abstract:

Moving vehicle will produce dynamic excitation and can be categorized in the study of noise, vibration and harshness (NVH). Studies of NVH can resolve issues associated with the use of a vehicle comfort. Exposure to some level of noise and vibration can be classified as a danger to vehicle passengers if they are exposed in a standard eight-hour time period. Therefore NVH aspect is the most important aspect in selecting a military vehicle other than the factor of safety, reliability, fuel consumption and maintenance costs. This study was carried out on Malaysian Army (MA) 3-tonne truck drivers who are exposed to noise and vibration produced by the truck. Vibration exposure at seat, steering wheel and body floor was measured using tri-axial and single axis accelerometers which were connected to a Brüel & Kjær Type 3649 vibration analyser, while noise exposure was measured at the drivers ear position using a DuO smart noise monitor. From the results obtained, both vibration and noise pressure levels increased proportionally with the increasing speed of the truck. In the long-term, will have an impact on the health of the truck drivers.

• Periodical: Applied Mechanics and Materials (Volume 471)
• Pages: 74-80
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.471.74
• Online since: December 2013
• Authors: Shamsul Akmar Ab Aziz, Mohd Zaki Nuawi, Mohd Jailani Mohd Nor, Dian Darina Indah Daruis
• Keywords: 3-Tonne Truck, Malaysian Army (MA), Noise, Vibration and Harshness (NVH)

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