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Vibrations of Forest machines

Project Leader
Stampfer Karl, Project Leader
Duration:
01.10.2009-31.12.2012
Type of Research
Applied Research
Project partners
Oesterreichische Bundesforste AG, Marxergasse 2, A-1030 Wien, Austria.
Function of the Project Partner: Partner
Staff
Rottensteiner Christian, Project Staff (bis 31.12.2013)
BOKU Research Units
Institute of Forest Engineering
Funded by
Department of Forest and Soil Sciences, Peter Jordan Strasse 82, A-1190 Wien, Austria
Abstract
Stress induced by exceeding exposition to vibrations causes a health hazard to human beings. There are diverse results of research activities in the medical field that confirm these facts. Thus, since 2006 there is an EU-based directive (VOLV) on noise and vibration control. This obligatory directive determines exposition action and limit values for vibration. There are as well hand-arm vibrations as whole-body vibrations. Some scientific publications came to the result that forest machinery used in forestry often exceeds exposition limit values.
Using accelerometers and a 6-channel input LAN-XI module and associated software of Brüel & Kjaer vibration behavior of forest- and construction machinery of the ÖBf AG is measured and analyzed (frequency analysis). Simultaneous elemental time studies reveal the vibration magnitude for each working element. The whole study-layout was done in a factorial way.
Aim of measurement activities is an evaluation of stress induced by forest- and construction machinery used in Austrians forestry on a wide scale. The following aspects correlated with vibration exposition are planned to be recorded and analyzed: impacts of (1) machinery, of (2) diverse processes and (3) environmental conditions. Frequency analysis will reveal which activities are associated with high vibration magnitudes and which parts of machines specifically cause the vibrations. Based on the results technical and organizational actions reducing the stress of exposure to vibrations are derived.
Keywords
forest technology;
Stress; Ergonomics; Forest machinery; Vibrations;
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