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Fingertip Model for Analysis of High-Frequency Vibrations
RISE Research Institutes of Sweden, Materials and Production, Manufacturing Processes.ORCID iD: 0009-0005-7340-9223
RISE Research Institutes of Sweden, Materials and Production, Manufacturing Processes.ORCID iD: 0000-0001-5361-440x
RISE Research Institutes of Sweden, Materials and Production, Manufacturing Processes.ORCID iD: 0009-0008-8340-0638
2023 (English)In: Proceedings, E-ISSN 2504-3900, Vol. 88, no 1, article id 6Article in journal (Refereed) Published
Abstract [en]

High-frequency shock-type vibrations (HFVs) from, e.g., impact wrenches with a frequency content mainly above 1250 Hz have long been suspected to cause a significant number of vibration injuries, HAVS. These vibrations are unregulated in the current standard for risk estimation, ISO 5349-1; thereby, the risk of injury is suspected to be underestimated. The objective of this study was to investigate the effects on finger tissue subjected to HFVs similar to those from impact wrenches by using a 2D finite element model of a fingertip. The model was validated through experiments. Using the input acceleration from the experiments, the model predicted high pressure variation and particular negative pressures at levels close to 0.1 MPa (1 Bar) or more, which are levels where cavitation in liquid can occur, with a detrimental effect on biological systems.

Place, publisher, year, edition, pages
MDPI , 2023. Vol. 88, no 1, article id 6
Keywords [en]
high-frequency vibration; ultravibration; HAVS; vibration injury; impact wrench; shock vibration; numerical model; experimental validation; negative pressures; material properties
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-67016DOI: 10.3390/proceedings2023086023OAI: oai:DiVA.org:ri-67016DiVA, id: diva2:1799131
Conference
15th International Conference on Hand-Arm Vibration, Nancy, France, 6–9 June 2023.
Note

This research was funded by DGUV Forschungsförderung, FP-415

Available from: 2023-09-21 Created: 2023-09-21 Last updated: 2023-09-28Bibliographically approved

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Ottosson, PeterLindell, HansGretarsson, Snaevar

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