Vibration Exposure Evaluation of Three Wheeler Passengers - A Review

Today Noise, Vibration and Harshness (NVH) are the concern of every human being in life. The vehicles meeting all technical specifications are also bound to satisfy NVH norms as one of the important ‘Unique selling Proposition’ (USP). Hence vehicle manufacturers are focused to provide improved product performance regarding NVH. In India ‘Three Wheelers’ are main ‘Public Transport’ used in urban areas and also used for carrying goods as well. These three wheelers are subjected to extreme vibrations due to its engine, structural design and the poor suspension combined with bad road condition. It is reported that vibrations over certain value are most hazardous to health. For vibration analysis of automotive vehicle and sub-assemblies under different operating conditions requires special transducers and instrumentation. Fast Fourier Transform is the effective tool which provides spectrum of signals with frequency as an independent variable and plays an important role in the process of vibration measurement and analysis. In this project work evaluation whole body vibration exposure of passengers in three wheeler is done.