Magneto sensitive material in noise and vibration engineering
2005 (English)In: Proceedings of ISMA 2004: International Conference on Noise and Vibration Engineering, Vols 1-8 / [ed] Sas, P; DeMunck, M, 2005, 217-223 p.Conference paper (Refereed)
Structure-borne sound properties of magneto sensitive material, with possible applications in automotive and aerospace engineering, are presented. The dynamic properties of isotropic magneto sensitive polymer are examined through experiments within the audible frequency range while applying an external magnetic field. The shear modulus for this manufacturer convenient material, consisting of dispersed irregular, micro-meter sized iron particles in a rubber matrix, is found to depend strongly on both frequency and magnetic field, while the loss factor is almost independent of those factors. Magneto sensitive material applied in noise and vibration engineering promise to have more functionality than conventional materials while actively, rapidly, continuously and reversibly change the dynamic properties. A highly interesting example is the smart vibration isolator where the magneto sensitive rubber rapidly and actively changes the rigid body and dynamic stiffness peak frequencies thereby effectively increasing the isolation also within the audible frequency domain.
Place, publisher, year, edition, pages
2005. 217-223 p.
IdentifiersURN: urn:nbn:se:kth:diva-43316ISI: 000239814900015ScopusID: 2-s2.0-13344262662ISBN: 90-73802-82-2OAI: oai:DiVA.org:kth-43316DiVA: diva2:448518
2004 International Conference on Noise and Vibration Engineering, ISMA, Leuven, Belgium, 20-22 September 2004
QC 201412122011-10-172011-10-142014-12-12Bibliographically approved