Dynamic Simulation of Coil Quench Induced by Wire Motion

Autor:	Touichi Okada, Tatsuya Kushida, Shigehiro Nishijima
Rok vydání:	1997
Předmět:	Dynamic simulation Superconductivity Stress (mechanics) Materials science Nuclear magnetic resonance Tension (physics) Electromagnetic coil High Energy Physics::Lattice Magnet Equations of motion Mechanics Excitation
Zdroj:	TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 32:219-229
ISSN:	1880-0408 0389-2441
DOI:	10.2221/jcsj.32.219
Popis:	Wire motion in a superconducting coil has been simulated dynamically by means of solving the equation of motion of each winding with time in order to make quantitative analyses of the relationships between the winding conditions and the quench current of a superconducting coil, especially between winding tension and quench current. Using this method, each wire position, wire velocity and frictional heating and stress in the coil during excitation could be calculated dynamically. It was found that not only quench current but also the position where quench initiates changed with the winding tension and frictional coefficient. Wire motion after quench was also calculated. It was clarified that, due to the friction force, the wire did not return to its initial position resulting in misalignment of the wire. It was found that the method developed is useful for revealing the characteristics of a superconducting coil during operation. The method can be applied to the design of stable super conducting magnets.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e1c30a8a7d8ca27ba98c80cda4e043d https://doi.org/10.2221/jcsj.32.219 Zobrazit plný text záznamu