Figure 3
The diagram is a simple top view of two concentric circles. The inner filled ring is labeled “Damping ring”. The outer thin circle surrounding it is labeled “Damping rim”. Two horizontal arrows on the left and right of the ring point in opposite directions and are both labeled “P subscript 1”. A vertical arrow at the top edge of the ring points inward and is labeled “P subscript 2”. A short arrow along the outer edge of the right near the top left is labeled “U subscript t”, indicating motion or displacement around the circumference.Vibration reduction analysis of damping rings. Source: Authors’ own work