A Method for Online Identification of Two-Inertia Mechanical System Including Nonlinear Friction

Abstract:

This paper describes a practical method to identify mechanical parameters of two-inertia mechanical system such as a linear actuator driven by a ball screw mechanism. In the proposed method, mechanical system is represented as an inverse model and a low-pass filtered M-sequence is used as an input signal. The mechanical parameters are estimated by using steepest descent method with a dead band. From the results of the computer simulation, the identified mechanical parameters quickly approach to the true mechanical parameters.

• Periodical: Key Engineering Materials (Volumes 523-524)
• Pages: 745-749
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.523-524.745
• Online since: November 2012
• Authors: Yukio Toyozawa, Naoto Sonoda, Hiroshi Harada, Hiroshi Kashiwagi
• Keywords: Identification, M-Sequence, Nonlinear Friction, Steepest Descent Method, Two-Inertia System

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