Modelling and Test of an Integrated Magnetic Spring-Eddy Current Damper for Space Applications
Efren Diez-Jimenez,
Cristina Alén-Cordero,
Roberto Alcover-Sánchez,
Eduardo Corral-Abad
Affiliations
Efren Diez-Jimenez
Mechanical Engineering Area, Signal Theory and Communications Department, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km 33,66, 28805 Alcalá de Henares, Spain
Cristina Alén-Cordero
Mechanical Engineering Area, Signal Theory and Communications Department, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km 33,66, 28805 Alcalá de Henares, Spain
Roberto Alcover-Sánchez
Mechanical Engineering Area, Signal Theory and Communications Department, Universidad de Alcalá, Ctra. Madrid-Barcelona, Km 33,66, 28805 Alcalá de Henares, Spain
Eduardo Corral-Abad
Department of Mechanical Engineering, Universidad Carlos III de Madrid, Av de la Universidad 30, 28911 Leganés, Spain
We present the design, manufacturing, and dynamical characterization of a mechanical suspension made by a passive magnetic spring and an eddy current damper integrated into a single device. Three configurations with 2, 3, and 4 permanent magnets axially distributed with opposite polarizations are designed, simulated, manufactured, and tested. Stiffness of 2410, 2050, 2090 N/m and damping coefficient of 5.45, 10.52 and 17.25 Ns/m are measured for the 2-, 3-, and 4-magnets configurations, respectively. The magnetic suspension provides good mechanical properties combined with excellent cleanness and high reliability, which is very desirable in mechanical systems for space applications.
