Modeling of piezoelectric smart structures including absorbing materials for cabin noise problems

초록

Modeling of piezoelectric smart structures including absorbing material was studied for cabin noise problem. The finite element method which uses a combination of three dimensional piezoelectric, flat shell and transition finite elements is adopted to model the piezoelectric active structure The acoustic pressure in the cubic shaped cavity is represented in terms of modes of the cavity and the absorbing material is modeled using surface acoustic impedance. Finally the effect of the cavity pressure is introduced in the finite element equation.