change in accelerance

[KalleH]

Assume that I have a board like structure lying down and suspended in its four corners. I have measured or calculated the accelerance (a/F) between a point A of the board and the base. I now introduce four isolators between the base and the four corners of the board.

My question:
Is there an easy way for me to calculate the new accelerance between the base and the point A of the board using the old accelerance and the response of a 1DOF system with the mass of the board and a spring with the stiffness of the four isolators coupled in paralell.

Thanks!

 

[GregLocock]

No, not generally. However, you should be able to get useful results if you consider a 3DOF model. (ie bounce pitch and roll)





Cheers

Greg Locock

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