Parameter Identification Of The Two-Mass Mechanical Flexible System Using Welch Method

Abstract

This paper is focused on the parameter identification of the Two-Mass mechanical flexible system for motor drive applications. The whole methodology is based on the amplitude frequency characteristics given by Welch spectrum analysis method. The iterative algorithm is used to reconstruct the bi-quadratic flexible member of the transfer function. Then, the mechanical parameters are obtained with the transfer function parameters equivalence. Finally, the experimental results and theoretical estimates are compared and discussed.