DIMENSIONAREA UNEI ÎNFĂȘURĂRI DE AMORTIZARE CU AJUTORUL MODELĂRII NUMERICE, PENTRU ATENUAREA OSCILAȚIILOR UNUI ACTUATOR CU UNGHI LIMITAT

Abstract

"This paper presents a computer-aided-design (CAD) of a dumping coil of an actuator producing a limited angular displacement proportional to intake current. Initially, a 2D FEM magnetic field model was developed for studying and optimizing the actuator. Subsequently, the model was coupled with the dumping coil short circuit and mechanical motion equations describing the dumping process. The rotor dumping was analyzed by modelling the rotor movement from the maximum angle position to zero under spring load action, when no current passes through field coil. Several practical aspects regarding numerical model built in COMSOL Multiphysics v5.3 are also presented. Paper purpose: Describing the optimization process of an actuator with limited angle, as well as implementing a magnetic field FEM model coupled with electric circuit and mechanical movement equations. Elements of originality: 1. Developing a complex numerical FEM model coupled with electric circuit and movement equations. 2. Practical interpretation of the results and experience gained in using such damping solutions for limited angle actuators."