Numerical experiments show that by inducing nodes at the appropriate locations, points of nearly zero vibration amplitudes can be enforced, effectively quenching vibration in that region of the plate.
Moreover, when the specified node locations are in the vicinity of one another, a region of nearly zero deflections can be enforced, effectively quenching vibration in that segment of the structure.
However, economic and technical design requirements often enforce low frequency structural vibration characteristics in work-pieces, especially in an area distanced from the tool holder.
The enforced motion design method uses blade motion to attempt to force the fluid frequency to lock-on to the blade vibration frequency at a specified amplitude.
Simply enforced formalities.
Displacement loading was enforced.
This vibration suppression is achieved by enforcing points of zero displacement, or otherwise referred to as nodes, at desired locations on the plate using properly tuned damped vibration absorbers.
Information presented in this paper is useful in adopting a proper way to enforce base motions and interpreting the response in vibration analysis.
