Wire rope isolators: An experimental inquiry into their structure borne sound properties
2008 (English)In: PROCEEDINGS OF ISMA 2008: INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING, HEVERLEE: KATHOLIEKE UNIV LEUVEN, DEPT WERKTUIGKUNDE , 2008, 3503-3512 p.Conference paper (Refereed)
In presenting an indirect method for the dynamic stiffness of wire rope isolators in the audible frequency range, the stiffness dependence on static preload, vibration amplitude and frequency is resolved. It is shown that although the stiffness is strongly dependent on the frequency, the peaks are rounded; indicating rather high damping - contrary to those of ordinary steel springs - and, thus, is displaying similar behavior as rubber isolators. The main reason for the increased damping is the friction motion between the separate threads of the cable twist. Furthermore, the stiffness is independent on vibration amplitudes typically applied within the audible frequency range, while showing a substantially lower stiffness for significantly higher amplitudes, typically applied for low-frequency applications. Finally, the dynamic stiffness is displaying a strong static preload dependence; the higher the preload, the lower is the stiffness. In conclusion, wire rope isolators - typically applied for shock isolation and low-frequency applications may also be suitable for noise and vibration applications within the audible frequency range, contrary to ordinary metal springs.
Place, publisher, year, edition, pages
HEVERLEE: KATHOLIEKE UNIV LEUVEN, DEPT WERKTUIGKUNDE , 2008. 3503-3512 p.
IdentifiersURN: urn:nbn:se:kth:diva-31267ISI: 000263409902008ScopusID: 2-s2.0-84906348037ISBN: 978-90-73802-86-5OAI: oai:DiVA.org:kth-31267DiVA: diva2:405428
International Conference on Noise and Vibration Engineering, Leuven, BELGIUM, SEP 15-17, 2008
QC 201103222011-03-222011-03-112016-05-16Bibliographically approved