Computation speed of numeric Preisach model

摘要

Many applications of the Preisach model need a lot of repeated calculations. Therefore, the algorithm speed is an important program parameter. Two ways of calculation acceleration are considered: improvement of the algorithm and reduction of the Preisach matrix using its specific feature. In the first case, which is universal, the calculation time can decrease about 500 times. In the second case the time saving may be lower about 50 times without decrease of accuracy. The combination of both is possible.