guyed tower dynamics
guyed tower dynamics
(OP)
Hi guys (no pun intended)
I have been reading up on guyed tower dynamics - lots of literature - excellent treatment given in 'Cable Structures' by Max Irvine. However, when I try to rework his Example 4.3 while my guy stiffness results agree pretty well with his and the mode shapes are exactly the same, my natural periods are different - I suspect an error in the book. Anyone had similar experience ?
I have been reading up on guyed tower dynamics - lots of literature - excellent treatment given in 'Cable Structures' by Max Irvine. However, when I try to rework his Example 4.3 while my guy stiffness results agree pretty well with his and the mode shapes are exactly the same, my natural periods are different - I suspect an error in the book. Anyone had similar experience ?






RE: guyed tower dynamics
If this were messed up, then you'd be off by about a factor of sqrt(g)..... I've encountered this same mistake more times than I can count.
Josh
RE: guyed tower dynamics
No, I'm not confusing weight and mass, though it's a common mistake as you rightly say ! I am using the data given in the book.
Thing is, the result in the book looks suspicious anyway: a fundamental period of 0.43s for a 120m tall tower.
RE: guyed tower dynamics
HTH
RE: guyed tower dynamics
I have contacted Prof Irvine to see what he says and will post his reply in due course.