Sensitivity analysis of eigenmodes and dynamic responses for intelligent structures

A finite element formulation for the structure with distributed piezoelectric sensors and actuators (S/As) is presented. Design sensitivity analysis of eigenmodes and dynamic responses for intelligent structures are investigated. A new method of design sensitivity analysis for intelligent structures, the finite element perturbation method, is developed. As an application of this method, a numerical example is given. The results show that the method proves to be effective.