Finite element re-design of a composite piezoelectric actuator

In this article, we describe the analysis of a composite piezoelectric actuator intended for a force feedback application. The concept of the force feedback interface is based on reduction of the friction coefficient between two surfaces in contact, and the aim here is to achieve an enhanced performance design based on the existing actuator. For this purpose, and following up a previous study, the focus falls on a more accurate dynamic prediction of the system using Finite Element Modelling (FEM). Investigations on the resonance state of the structure are conducted on the FE model and its physical counterpart. Results indicate good concurrence. For this reason the model has been updated and will be characterised in a simulated working situation and then realized.