Publication detail
Design Optimization of Magnetic Coupling Using Genetic Algorithm and 2D FEM Model
KREJČÍ, P. ONDRŮŠEK, Č.
Czech title
Optimalizace vlastností magnetické spojky s využitím 2D MKP modelu a metod umělé inteligence
English title
Design Optimization of Magnetic Coupling Using Genetic Algorithm and 2D FEM Model
Type
conference paper
Language
en
Original abstract
Magnetic couplings are widely used to torque transmission between two shafts without any mechanical contact. They are especially well suited for used in hazardous environments, to transmit torque through a separation wall. An additional advantage of a magnetic coupling is that slipping occurs when excessive torque is applied, this can be used to prevent mechanical failure due to torque overloads. This paper deals with influence of temperature on behavior of magnetic coupling and magnetic coupling design optimization. The permanent magnets that are used for torque transmission cannot be used close to Currie point, which is a point of loss of magnetic characteristics. We intend to use the magnetic coupling for pump of radioactive liquid materials for transmutation devices, where the temperature is close to four hundred centigrade. Because of we suggest the design changes for elimination of temperature influence. This paper presents the finite element (FE) parametric model of magnetic coupling, experimental verification of FE model and optimization of the inner part of magnetic coupling in order to increase the maximal torque. The genetic algorithm method in connection with FEM model of magnetic coupling was used for the design optimization procedure.
Czech abstract
Magnetická spojka je zařízení, sloužící k přenosu kroutícího momentu bezkontaktní metodou, využívající interakce magnetického pole permanentích magnetů na vnějším a vnitřním rotoru.Magnetická spojka nachází využití v mnoha oblastech technické praxe, jako například ve spojení s čerpadly pro čerpání toxických nebo vzácných látek, kde se využívá výhodného konstrukčního uspořádání magnetické spojky k hermetickému oddělení čerpaného media od okolí. Tento článek se zabývá vlivem teploty na vlastnosti magnetické spojky a optimalizací návrhu magnetické spojky. V našem případě bude uvedená spojka použita v čerpadle na kapalné soli pro transmutační zařízení, kde bude mimo jiné tvořit i funkci mechanické ucpávky mezi toxickým prostředím a technicky čistým okolím. Pracovní teplota se v čerpadle pohybuje kolem 450°C. V článku je uveden parametrický MKP model magnetické spojky, verifikace modelu magnetické spojky experimentálním modelováním a využití MKP modelu spojky ve spojení s metodou genetického algoritmu k optimalizacei vlastností magnetické spojky.
English abstract
Magnetic couplings are widely used to torque transmission between two shafts without any mechanical contact. They are especially well suited for used in hazardous environments, to transmit torque through a separation wall. An additional advantage of a magnetic coupling is that slipping occurs when excessive torque is applied, this can be used to prevent mechanical failure due to torque overloads. This paper deals with influence of temperature on behavior of magnetic coupling and magnetic coupling design optimization. The permanent magnets that are used for torque transmission cannot be used close to Currie point, which is a point of loss of magnetic characteristics. We intend to use the magnetic coupling for pump of radioactive liquid materials for transmutation devices, where the temperature is close to four hundred centigrade. Because of we suggest the design changes for elimination of temperature influence. This paper presents the finite element (FE) parametric model of magnetic coupling, experimental verification of FE model and optimization of the inner part of magnetic coupling in order to increase the maximal torque. The genetic algorithm method in connection with FEM model of magnetic coupling was used for the design optimization procedure.
Keywords in English
Magnetic Coupling, Genetic Algorithm, FEM Model
RIV year
2004
Released
23.07.2004
Publisher
ASME
Location
San Diego, California USA
ISBN
0-7918-4669-5
Book
Fracture Methodologies and Manufacturing Processes
Pages count
5
BIBTEX
@inproceedings{BUT12221,
author="Petr {Krejčí} and Čestmír {Ondrůšek},
title="Design Optimization of Magnetic Coupling Using Genetic Algorithm and 2D FEM Model",
booktitle="Fracture Methodologies and Manufacturing Processes",
year="2004",
month="July",
publisher="ASME",
address="San Diego, California USA",
isbn="0-7918-4669-5"
}