Acceleration control in active dynamic vibration damper

Abstract

The paper deals with the planar problem of vibration isolation. The active vibration damper is mounted on an oscillating mass with a vibroactive unit at a point that does not coincide with the mass center and the action of the vibroactive force does not coincide with the mass center. An active dynamic vibration damper is an electrodynamic drive in which the translational movement of the moving mass is carried out according to information about acceleration from an accelerometer mounted on an oscillating mass with a vibroactive unit. The paper gives an assessment of the vibration isolation effectiveness, depending on the mismatch with the mass center of the vibrational force application points, the settings of the active damper and accelerometer.

Hybrid Piezoelectric–Magnetic Self‐Sensing Actuator using Novel Dual‐Alignment Magnetic/Mechanical Processing for Vibration Control of Whole‐Body Vibrations

“…Passive vibration control is not able to adapt to a constant changing environment over time, reducing its effectiveness. [45,46] Traditional mechanical active vibration systems can adapt and readjust to sense and dampen, but they are bulky and require high-power input. [47] Thus, a thin flexible single device that can both sense and dampen these harmful vibrations while easily being integrated into any transportation system is greatly beneficial.…”