Modelling and Test of an Integrated Magnetic Spring-Eddy Current Damper for Space Applications

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 de...

Full description

Bibliographic Details
Main Authors: Efren Diez-Jimenez, Cristina Alén-Cordero, Roberto Alcover-Sánchez, Eduardo Corral-Abad
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/10/1/8
Description
Summary: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.
ISSN:2076-0825