Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2019
Date : August 27, 2019 - August 30, 2019
The occurrence of the low frequency vibration in vibroimpact systems such as vibrating sieve reduces the reliability of the system and precludes normal operation when its amplitude is excessive. For suppressing the low frequency vibration, this paper analytically investigates the effect of a dynamic absorber on vibration characteristics. The system investigated comprises two masses which can move only in the vertical direction under gravity. The lower mass is supported by a spring and subjected to a periodic exciting force, whereas the upper mass bounces freely on the lower mass. The effect of the parameters of a dynamic absorber mounted on the lower mass is examined, showing that there is an optimal set of values for the natural frequency and the damping ratio to prevent the low frequency vibration.
