A vibration device 10 includes top plate assembly 12 defining cavity 27 therein that is configured and dimensioned to receive actuator plate 19 such that the actuator plate 19 is in direct contact with the top plate assembly 12. The actuator plate 19 transmits thereby a vibration signal represented by an oscillating vibratory force to the top plate assembly 12 to operate the oscillating vibration device. Vibration device 10 further includes base plate assembly 14 for the vibration device 10. The top plate assembly 12 is configured and dimensioned to be mounted on the base plate assembly 14. The base plate assembly 14 includes actuator mounting assembly 20 that is configured to receive actuator 50 generating a vibration signal represented by an oscillating vibratory force. A method of operating the oscillating vibration device 10 includes transmitting a vibration signal represented by an oscillating vibratory force to foot plate assembly 12.
