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Application of LMS algorithm to measure low-frequency transient forces from human walking
RISE, SP – Sveriges Tekniska Forskningsinstitut.
Division of Applied Acoustics, Chalmers University of Technology.
RISE, SP – Sveriges Tekniska Forskningsinstitut.
2016 (English)In: Acta Acoustica united with Acustica, ISSN 1610-1928, E-ISSN 1861-9959, Vol. 102, no 1, 23-34 p.Article in journal (Refereed) Published
Abstract [en]

Measurement and modeling of low frequency ground reaction forces (GRFs) from human walking have been the subjects of research in different fields from biomechanics to civil engineering and structural dynamics. Many of the existing models are developed based on experiments which alter natural walking by for example presence of force transducers, limitations in the speed and path of walking and replacing the real floor with a transducerfacilitated measurement rig. These alterations result in contact forces which do not represent real GRFs. In this study, a time-domain inverse measurement method based on LMS algorithm is used to measure low-frequency (<100 Hz) forces induced by human footsteps. The LMS-based force identification method is first validated for low-frequency excitations with less complexity in number of excitation positions and frequency content compared with the footsteps. The method is then applied to measure ground reaction forces created by human walking.

Place, publisher, year, edition, pages
S. Hirzel Verlag GmbH , 2016. Vol. 102, no 1, 23-34 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-433DOI: 10.3813/AAA.918921OAI: oai:DiVA.org:ri-433DiVA: diva2:942344
Available from: 2016-06-23 Created: 2016-06-23 Last updated: 2017-11-28Bibliographically approved

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