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Influence of human induced floor vibrations on the measurement precision of force plates in a biomechanics laboratory

  • In biomechanics laboratories the ground reaction force time histories of the foot-fall of persons are usually measured using a force plate. The accelerations of the floor, in which the force plate is embedded, have to be limited, as they may influence the accuracy of the force measurements. For the numerical simulation of vibrations induced by humans in biomechanical laboratories, loading scenarios are defined. They include continuous motions of persons (walking, running) as well as jumps, typical for biomechanical investigations on athletes. The modeling of floors has to take into account the influence of floor screed in case of portable force plates. Criteria for the assessment of the measuring error provoked by floor vibrations are given. As an example a floor designed to accommodate a force platform in a biomechanical laboratory of the University Hospital in Tübingen, Germany, has been investi-gated for footfall induced vibrations. The numerical simulation by a finite element analysis has been validated by field measurements. As a result, the measuring error of the force plate installed in the laboratory is obtained for diverse scenarios.

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Metadaten
Author:Horst WerkleORCiDGND, Wolfgang FranckeGND, Andrei Firus
URL:https://www.htwg-konstanz.de/fileadmin/pub/hochschule/personen/werkle/Dokumente/2015_COMPDYN_2015_Werkle_ua_Firus_v5.pdf
Parent Title (English):COMPDYN 2015, 5th ECCOMANS Thematic Conference on Computational Mathods in Structural Dynamics and Earthquake Engineering, Crete Island, Greece, 25–27 May 2015
Document Type:Conference Proceeding
Language:English
Year of Publication:2015
Release Date:2019/05/14
Tag:Biomechanics Laboratory; Countermovement Jump; Floor Vibrations; Force Plate; Gait Analysis Laboratory
Pagenumber:12
Open Access?:Ja
Relevance:Keine peer reviewed Publikation (Wissenschaftlicher Artikel und Aufsatz, Proceeding, Artikel in Tagungsband)