Hysteresis modelling of a piezoelectric tube actuator

Abstract

The article concerns about a piezoelectric tube actuator hysteresis. The actuator can bend in two directions and application of this piezo elements can entail new features and capabilities of mechatronic devices. Unfortunately as other smart materials, piezoelectric materials are distinguished by hysteresis phenomenon. Authors present result of displacement measurement, which was performed for decreasing amplitude cosine input signal. Based on this result phenomenological generalized Prandtl-Ishlinskii model was matched. The results of the piezoelectric tube and the model displacement were compered.