Support vector regression for structural identification via component-mode synthesis

A support vector regression (SVR)-based structural identification method is developed through a component-mode synthesis (CMS) technique. The CMS method transforms the structural identification equation for the whole structural system in the original coordinate to several uncoupled sub-structural formulas in the normal co-ordinate. The CMS methods are classified to free interface, fixed interface, and hybrid methods according to whether the degrees of freedom at the interfaces are free, constrained or partially constrained. The measurement of the input force is not necessary in this approach, because the effect of the input force can be expressed in terms of the interface node responses. The CMS reduces the number of unknown parameters comprised in the identification equation, guaranteeing the SVR work efficiently in a low dimension.