Reducing Torsional Vibrations using a circular path Pendulum Vibration Absorber

By: Ryan Monroe

Abstract
Torsional vibrations in automotive engines are present during piston firing. These torsional vibrations affect the fuel economy of the car by reducing gas mileage. It is therefore desired to reduce these vibrations by means of attaching a vibration absorbing device to the engines crank shaft. This paper will investigate the effectiveness in reducing the torsional vibrations using a circular path pendulum with active torque control applied to the pendulum arm.

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