The Bathe time integration method in seismic analysis part II

In a previous post (temporarily removed) we showed the generation of spectrum compatible synthetic time history accelerogram to enable nonlinear analysis in the time domain. From the acceleration time history response at any point in the structure, we may calculate a secondary response spectrum. For example, it may be used in the design of an antenna attached to the wind turbine hub. Here are the results from a linear (non-rotating) and nonlinear (rotating) transient analysis with the previously calculated synthetic ground motions applied showed. The graphs show the acceleration time histories, and the response spectra from time history, at the ground (verification of the spectrum compatibility) and the turbine hub.