Active damping of rotating platforms using integral force feedback. (10th March 2021)

• Record Type: Journal Article
• Authors: Dehaeze, Thomas; Collette, Christophe
• Is Part Of: Engineering research express. Volume 3:Number 1(2021)
• Publication Date: 2021-03-10
• Subjects: active damping -- integral force feedback -- vibration isolation -- rotating platforms; Engineering -- Periodicals; 620.005
• DOI: 10.1088/2631-8695/abe803
• Languages: English
• ISSNs: 2631-8695

Abstract

Abstract: This paper investigates the use of Integral Force Feedback (IFF) for the active damping of rotating mechanical systems. Guaranteed stability, typical benefit of IFF, is lost as soon as the system is rotating due to gyroscopic effects. To overcome this issue, two modifications of the classical IFF control scheme are proposed. The first consists of slightly modifying the control law while the second consists of adding springs in parallel with the force sensors. Conditions for stability and optimal parameters are derived. The results reveal that, despite their different implementations, both modified IFF control scheme have almost identical damping authority on the suspension modes.