Examination of the adaptor approach for the measurement of hand-transmitted vibration exposure
Keywords:Ergonomics, Vibration measurement, Frequency ranges, Fundamental resonance, Grip force, Hand-arm system, Hand-arm vibration, Hand-transmitted vibration, Optimized designs, Rotational vibrations, Test condition, Translational vibration, Vibration excitation, Vibration transmissibility
AbstractThe specific mechanisms of the biodynamic effects is found and the optimized design of the adaptor and its hand-holding strategy is found so that the undesired effects could be minimized. Three adapters were considered and experiment was carried out on a hand-arm vibration test system equipped with an instrumented handle that can measure the tri-axial vibration excitations and the applied grip force. Three subjects participated in the test of the palm adapter and two of them participated in the tests of the other two adapters. The vibration transmissibility functions of the palm adapter under different test conditions are found. The results show that the vibration of a finger adapter could be greatly affected in the frequency range from 25 to 80 Hz, especially in the range (30 to 50 Hz) of the fundamental resonance of the hand-arm system. The rotational vibration is identified as one of the major sources affecting the translational vibration measurement required in the risk assessment of HTV exposure.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.