Experimental (OMA) and Numerical (FEM) Modal
01/01/2015· Experimental (OMA) and Numerical (FEM) Modal Analysis of Ball Mill Foundations The results show a surprisingly good supporting structure design in an era when modern design methods, such as the FEM method, were not yet available, i.e. in the 1960s. The study results ruled out the state of the ground on which the foundation rests as the cause of large structure vibration. Instead, the poor