SIMULATION OF VIBRATION OF THE AUTOMOTIVE POWERTRAIN SUSPENSION

Abstract

Vibration in automotive powertrain is one of the main causes low
frequencies vibration of vehicle. This paper studies the vibration analysis of the
powertrain’s four-point suspension system of light truck. The method of reseash
is simulation by using MATLAB Simulink. The relationship between the system’s
physical parameters (spring stiffness and damping coefficient) and the vibration
parameters is then analyzed to find the best combination of the physical
parameters that yields the optimized vibration behavior. An experimental of
measuring the vibration frequencies at the four-point of powertrain's suspension
with the engine working with different rotation. The result of this reseach is to
reduce vibration that includes changing the physical properties of parts of
suspension and modifying the overall setup. A proposal to the engineers with
another simple and cost-effective approach is to properly design a vibrationisolation system.