Exploring the vibration control potential of magneto-sensitive rubber

• Main Author: Blom, Peter
• Format: Others
• Language: English
• Published: KTH, Farkost och flyg 2005
• Subjects: Applied mechanics; magneto-sensitive rubber; Teknisk mekanik; Engineering mechanics
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-241

Two new aspects of the dynamic behaviour in the audible frequency range of magneto-sensitive (MS) rubber are highlighted: the existence of an amplitude dependence of the shear modulus—referred to as the Fletcher–Gent effect—for even small displacements, and the appearance of large MS effects. These results have been obtained experimentally and are subsequently used to model two examples of magneto-sensitive rubber isolators to show how by means of MS rubber they can be improved. The first model calculates the transfer stiffness of a torsionally excited isolator and the second one the energy flow into the foundation for a bushing inserted between a vibrating mass and an infinite plate. In both examples notable improvements in isolation can be obtained === QC 20101125