Vibration it can be very harmful – leading to eventual failure of the system. Consequently, one of the major reasons for vibration analysis is to predict when this type of resonance may occur and then to determine what steps to take to prevent it from occurring. As the amplitude plot shows, adding damping can significantly reduce the magnitude of the vibration. Also, the magnitude can be reduced if the natural frequency can be shifted away from the forcing frequency by changing the stiffness or mass of the system. If the system cannot be changed, perhaps the forcing frequency can be shifted
Oh Dear! What Can the Matter Be? me a twopenny whistle He'll buy me a threepenny fair He'll buy me a Bunch o' Blue Ribbons To tye up my bonny Brown Hair O saw ye him coming And saw ye him coming O saw ye him coming Hame frae the Newcastle fair </poem> The following are given as the traditional lyrics (being chorus and verse) in Cuddon's and Preston's "A Dictionary of Literary Terms and Literary Theory": <poem> O dear, what can the matter be? Dear, dear, what can the matter be? O dear, what can the matter be? Johnny's so long at the fair. He promised