PREDICTION OF TRANSFORMATION BEHAVIOR OF R-PHASE SMA ACTUATORS BY THE APPLICATION OF FUZZY LOGIC

摘要

The objective of this paper is to show the applicability of the approach of Fuzzy Logic in the field of shape memory alloys (SMA) for prediction of transformation behavior. To gain basic knowledge about influences on transformation behavior, different binary NiTi alloys were investigated in experiments. The parameters annealing temperature, annealing time and Ni-concentration were varied and their influence on the transformation behavior of the R-phase was noted and added to the Fuzzy Logic knowledge base. A Fuzzy Logic computing system was designed which helps with the calculation of transformation behavior of different SMA.