Direct energy flow measurement in magneto-sensitive vibration isolator systems
2012 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 331, no 9, 1994-2006 p.Article in journal (Refereed) Published
The effectiveness of highly nonlinear, frequency, amplitude and magnetic field dependent magneto-sensitive natural rubber components applied in a vibration isolation system is experimentally investigated by measuring the energy flow into the foundation. The energy flow, including both force and velocity of the foundation, is a suitable measure of the effectiveness of a real vibration isolation system where the foundation is not perfectly rigid. The vibration isolation system in this study consists of a solid aluminium mass supported on four magneto-sensitive rubber components and is excited by an electro-dynamic shaker while applying various excitation signals, amplitudes and positions in the frequency range of 20-200 Hz and using magneto-sensitive components at zero-field and at magnetic saturation. The energy flow through the magneto-sensitive rubber isolators is directly measured by inserting a force transducer below each isolator and an accelerometer on the foundation close to each isolator. This investigation provides novel practical insights into the potential of using magneto-sensitive material isolators in noise and vibration control, including their advantages compared to traditional vibration isolators. Finally, nonlinear features of magneto-sensitive components are experimentally verified.
Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 331, no 9, 1994-2006 p.
IdentifiersURN: urn:nbn:se:kth:diva-82487DOI: 10.1016/j.jsv.2012.01.015ISI: 000302044900003ScopusID: 2-s2.0-84856970444OAI: oai:DiVA.org:kth-82487DiVA: diva2:498285
FunderTrenOp, Transport Research Environment with Novel Perspectives
QC 201204232012-02-112012-02-112013-04-10Bibliographically approved