METHOD AND DATA PROCESSING DEVICE FOR SIMULATING A PIEZOELECTRIC ACTUATOR AND COMPUTER PROGRAM

摘要

The invention relates to a data processing device for simulating a piezoelectric actuator. Said data processing device comprises a differential equation solver which is adapted to solve a differential equation for the temporal progression of the axial length (1) of the stack of piezoelectric elements. The differential equations for the temporal progression of the axial length (1) of the stack (34) of piezoelectric elements is derived from Euler-Lagrange equations for the free axial ends of the stack (34) of piezoelectric elements. A first Euler-Lagrange equation for the first free axial end of the stack (34) of piezoelectric elements is equated to a negative electric force equivalent (F