Dear All,

I started studying vibration recently and getting confused as I go deep n deep into it.

A multidegree system has n natural frequencies and hence n natural
shapes.

My confusion is Which frequency (and hence the corressponding mode shape)will the system adopt? Or the system will act democratically and give chance to each of its frequency to execute one by one and one after the other. :) In other words what is the criteria for the system to execute certain mode shape and frequency?

Also if a multidegree system is disturbed from its equillibrium position , will it execute all the frequencies and mode shape before coming to equillibrium once again?

(I referred the text book .They discuss about the general equation in terms of 'n' and conclude that the system will have n number of corressponding frequencies.)

Regards, Yogesh Joshi

I started studying vibration recently and getting confused as I go deep n deep into it.

A multidegree system has n natural frequencies and hence n natural

My confusion is Which frequency (and hence the corressponding mode shape)will the system adopt? Or the system will act democratically and give chance to each of its frequency to execute one by one and one after the other. :) In other words what is the criteria for the system to execute certain mode shape and frequency?

Also if a multidegree system is disturbed from its equillibrium position , will it execute all the frequencies and mode shape before coming to equillibrium once again?

(I referred the text book .They discuss about the general equation in terms of 'n' and conclude that the system will have n number of corressponding frequencies.)

Regards, Yogesh Joshi