Dynamic stiffness analysis of follower moments
Author(s)
Date Issued
1991
Publisher
John Wiley & Sons
Journal
Microcomputers in Civil Engineering
Volume
6
Issue
3
Start page
229
End page
236
Abstract
The dynamic stiffness method can predict an infinite number of natural modes of a conservative structure by means of a finite number of coordinates. The methos is extended to a nonconservative system characterized by follower moments to investigate the dynamic lateral buckling and flutter in this paper. Straight beam members with doubly symmetrical cross-sections are of interest, and skeletal frames are taken as examples. Flexural and torsional modes are coupled. The fact that the applied moment softens the flexural modes, but hardens the torsional modes, makes the characteristic diagram much more complicated than that of follower forces. Isola loops are possible.
SFU Affiliated Publication
No
Availability at SFU Library
No database links found.