INTEGRATION METHOD CAPABLE OF CONTROLLING EXPERIMENTAL ERROR GROWTH IN SUBSTRUCTURE PSEUDO DYNAMIC TEST

Abstract

Proposed is a new integration method that can ensure unconditional stability and control the growth of experimental errors in the substructure pseudo dynamic test. This method, referred to as a-OS method, is an extension of OS method that has already been proposed and includes an additional integration parameter. This parameter is the source of numerical dissipation, which in turn makes the growth of experimental errors suppressed. Stability and accuracy characteristics of the method are quantified analytically, and effectiveness of this method is demonstrated by numerical experimentation.