Engineering Transactions, 54, 3, pp. 173–187, 2006

Simulation Investigation of an Active Vibration Protection System of an Operator of a Hand-Held Percussive Tool

Zygmunt Basista
Cracow University of Technology

In the paper a complex model of the system operator-tool-base (OTB) has been presented. The evaluation and choice of the correct vibration isolation system of the grip of hand-held percussive tools requires a proper model of the system OTB. In the OTB model adapted in the paper, the model of the man-operator describes not only the dynamical reaction of the operator hands to vibration but also the behaviour of the operator as a system which controls the tool operation. Using this model, the necessary criteria for the assessment of the working comfort are formulated. Simulation of the model OTB with the proposed nonlinear pneumatic active vibration isolation system was done applying the Matlab-Simulink. The influence of parameter values of the vibration isolation system on the assumed comfort criteria was analyzed. The results obtained have been graphically presented.
Keywords: hand-held percussive tools; active vibration isolation; man-machine systems; human-operator
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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).


Z. Basista, The influence of a vibration–insulated handle on the ergonomic comfort of a percussive tool [in Polish], Zeszyty Naukowe Politechniki Rzeszowskiej, Nr 197, Mechanika 60, 19–26, Rzeszów 2002.

Z. Basista, M. Ksiatek, Estimation, of comfort parameters of an active vibration isolation system of the handle of a percussive power tool, Proceedings "INTER–NOISE'2004" Prague, August 22–25, "The 33rd International Congress and Exposition on Noise Control Engineering".

Z. Basista, Computer analysis of an active vibration insulator in a man-tool-base system [in Polish], Czasopismo Techniczne, Mechanika 5-M/2004, Krakow 2004, X Konferencja Naukowa "Wpływ wibracji na otoczenie", 26–37, Kraków 2004.

B.T. Sheridan, W. Ferrel, Man-achine systems, The MIT Press, Cambridge 1974.

A. Modjtahedzadeh, R.A. Hess, A model of driver steering control behavior for use in assessing vehicle handling qualities, Transactions of ASME, Journal of Dynamic Systems Measurement and Control, 115, 456–464, 1993.

S. Rakheja, J.Z. Wu, R.G. Dong, A.W. Schopper, A comparison of biodynamic models of the human hand-arm system for applications to hand-held power tools, Journal of Sound and Vibration, 249, 1, 55–82, 2002.

V.I. Babitsky, Hand–held percussion machine as discrete non-linear converter, Journal of Sound and Vibration, 214, 1, 165–182, 1998.

E.V. Gertz, Dynamics of pneumatic systems of machines [in Russian], Masinostroenie, Moskva 1985.

DOI: 10.24423/engtrans.415.2006