Dear Greg Locock,
the structure I modelled is a simple pin-pin supported beam. And I analysed it in a 2-d analyse option; so, the mode shapes are known. But when I extracted the phases and amplitudes from 'show plot function' feature of SAP2000, and I calculated the mode shapes from them, they...
Hi Guys!
I modelled a pin-pin supported beam, defined steady-state load case and load pattern, impose a 1 N steady state load on a point, and analyze my beam. then by plotting the values of bode plot, and multiplying the magnitude by sin of the phase, I have now 3 plots of imaginary parts for 3...