Influence of single and dual mass flywheel usage in IC engines on the resonance behavior of the power transmission system

Abstract

In internal combustion engines, due to the transmission of torsional vibrations caused by the irregularity of the combustion process to the gearbox, resonance occurs especially at low engine speeds. Resonance causes noise in the power transmission system. Therefore, driving comfort reduces and additional loads on the gearbox arise. Nowadays, with the concern of fuel consumption, the manufacturers turn to engine designs that keep the engine's working range as wide as possible. In this study, the mathematical models of power transmission systems using single-mass and dual-mass flywheel were analyzed and both systems were compared in terms of engine speed at which resonance occurs. In addition, the effects of the design parameters such as the mass moment of inertia and spring stiffness on the resonance behavior of the power transmission system using dual mass flywheel were examined. It has been observed that the dual mass flywheel drops the speed which resonance occurs in the power transmission system far below engine idle speed so that the resonance speed is kept away from the engine's working range.

Keywords

• Dual mass flywheel,resonance,power transmission system

References

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