Vibration Control of a High-Speed Precision Servo Numerically Controlled Punching Press: Multidomain Simulation and Experiments

Figure 16

Structural modification and related results for the first two orders of vibration of the frame.

(a) Modification of the side column

(b) Modification of the upper crossbeam

(c) Strength beams added around upper corners

(d) First-order vibration mode

(e) Second-order vibration mode