抄録
This paper describes a modeling of a smart flexible beam composed four piezoelectric materials due to monitor and detect the fault of the system using health monitoring technique. For example, the damage of piezoelectric materials and the breaking wire. A model of the smart flexible beam with the fault is expressed by a linear parameter varying system. The output signal of the object system is affected by damage of piezoelectric materials and breaking wire. Subspace state space identification is adopted in order to detect the fault in this paper. Numerical and experimental results indicates that the fault detection can be achieved by using proposed method.