Damage Localization in Mechanical Systems by Lasso Regression

Abstract Early signs of mechanical characteristic changes are essential for structural health monitoring (SHM). Due to the complexity civil, or aeronautical structures, SHM is often faced with high dimensional characteristics together limited sensor instrumentation. In this paper, Lasso regression applied address issue, based on its ability solving large problems. The vibration model first appropriately transformed into a linear model, parameters corresponding small in monitored characteristics, then these estimated from signals under assumption that most zeros. performance proposed method illustrated simulated truss structure.