Simulation Study for Controlling Second Mode using ANSYS

Second mode of vibration can be controlled by placing the patch at a distance of 0.25 times the length of the beam, from any one end of the simply supported beam. The force for the transient analysis is applied at the same point to excite the second mode of vibration.

Meshed Integrated Structure for Control of Second Mode

All parameters like ks, kv and damping values are kept constant. The value of kc is varied for finding the controller effectiveness. The graphs of displacement v/s time and voltage v/s time are plotted.

Displacement v/s Time Plot for different kc values

Voltage v/s Time Plot for different kc values

Though in above case, the vibration settling time is decreased. But the rate of decrease is very low. A steeper decrease of vibration settling time can be obtained by increasing the patch size or using more than one patch.