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Factors on Vibrational Harm during Hammer Drilling : Influences of Lateral Force, Feed Force, Hammer Drill and Drill Bit Type

Uhl, Michael ; Robens, Jan Heinrich; Gauch, Marius; Germann, René 1; Matthiesen, S. 1
1 Institut für Produktentwicklung (IPEK), Karlsruher Institut für Technologie (KIT)


When using hammer drills, the user is exposed to vibrations which can cause damage to the body. Those vibrations can be affected by external factors such as feed forces, which can increase the degree of damage to the user. However, currently there is a lack of knowledge as to whether the lateral forces applied by the user also have an influence on the technical system and whether these influences depend on the system. For this reason, a study with 1152 test runs was carried out on a test rig to investigate the relationship between the feed force and the lateral force as a function of the hammer drill setup on the vibrations at the hammer drill housing and main handle. The experiment showed that the feed (p = < .001, up to r = 0.57) and lateral (p = < .001, up to r = 0.77) forces had an influence on the vibrations of the hammer drill. However, these depended strongly on the technical system and hence cannot be generalized. Furthermore, it was proven that the impact frequency of the hammer drill was reduced by increasing both the feed force (p = < .001, r = 0.55) and the lateral force (p = < .001, r = 0.23). The findings can not only be used by engineers and scientists to further develop vibration standards, but also to design more ergonomic hammer drills. ... mehr

Volltext §
DOI: 10.5445/IR/1000148106
Veröffentlicht am 28.06.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Produktentwicklung (IPEK)
Publikationstyp Forschungsbericht/Preprint
Publikationsmonat/-jahr 06.2022
Sprache Englisch
Identifikator ISSN: 2194-1629
KITopen-ID: 1000148106
Verlag Karlsruher Institut für Technologie (KIT)
Umfang 19 S.
Serie KIT Scientific Working Papers ; 192
Schlagwörter human factors, power tool, user forces, human machine system, vibrational diseases
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