Effect of fluid volume on a resonator system working as a dynamic vibration absorber

Vibrations caused by unbalanced masses have a negative impact on rotating elements found in production lines, factories, and large machines. Rotating elements in this context refer to motors and rollers. Helmholtz resonators, mostly used in acoustic applications, are suitable for damping such sinusoidal vibrations. In this study, a system with a supporting hydraulic cylinder and a resonator system was built according to a simple spring-mass damper principle. As the resonator included a second hydraulic cylinder, the damping frequency was adjustable by varying the position of the cylinder piston. After tracking the system behavior with and without resonator system, it could be observed that in specific piston position, a significant vibration damping could be achieved even though the vibration could not be completely neglected.