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    Wyświetlanie 1-5 z 5
    Tytuł:
    A comparison of human physical models used in the ISO 10068:2012 standard based on power distribution. Part 1
    Autorzy:
    Dobry, M. W.
    Hermann, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/127817.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    biomechanical system
    local vibration
    power distribution
    układ biomechaniczny
    wibracje miejscowe
    rozdział mocy
    Opis:
    The study analyses differences in the flow of energy for two human physical models specified in the ISO 10068:2012 standard. For this purpose, two mathematical models of the Human–Tool system in question were developed using the Lagrange equation of the second kind. Corresponding energy models were then created for each mathematical model and tested by means of digital simulation in the MATLAB/Simulink environment. The study revealed a discrepancy between the models in terms of different types of power and in the total power.
    Źródło:
    Vibrations in Physical Systems; 2014, 26; 49-56
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the effectiveness of anti-vibration gloves. a comparison of the conventional and energy method. introduction - part one
    Autorzy:
    Hermann, T.
    Dobry, M. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/127845.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    biomechanical system
    local vibration
    energy method of assessment
    układ biomechaniczny
    drgania miejscowe
    energetyczna metoda oceny
    Opis:
    The article is an introduction to the assessment of the effectiveness of anti-vibration gloves. The assessment was conducted for a specific glove. The impact of the glove was taken into account in a model of the biodynamic system consisting of the human operator, the anti-vibration glove and the hand-held power tool. The synthetic model was created by integrating the physical model of the human body and the glove model specified in the International Standard ISO 10068:2012 with a model of an electric angle grinder. The first part of the study describes an alternative model of the glove, developed on the basis of experimental data. The article also presents a description of dynamic and energy models for analyzing dynamic structures of the biomechanical system. Results obtained at this stage are used to analyse and interpret the observed phenomena and to compare methods of assessing the effectiveness of anti-vibration gloves, which are discussed in detail in the second part.
    Źródło:
    Vibrations in Physical Systems; 2017, 28; 1-8
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparison of human physical models used in the ISO 10068:2012 standard based on power distribution. Part 2
    Autorzy:
    Dobry, M. W.
    Hermann, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/127696.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    biomechanical system
    energy flow
    energy method
    hand-arm vibrations
    układ biomechaniczny
    przepływ energii
    metoda energetyczna
    wibracje przenoszone na kończyny górne
    Opis:
    This article is a continuation of the article entitled „A comparison of human physical models used in the ISO 10068:2012 standard based on power distribution – Part 1” [5], which presented a method of energybased assessment of two human physical models. The first article revealed a discrepancy between the models in terms of three types of power and the total power. The focus of the present study was to determine the order of energy inputs in the dynamic structure and link different types of power to potential threats they pose to human health. Additionally, differences between the models were discussed.
    Źródło:
    Vibrations in Physical Systems; 2014, 26; 57-64
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparison of human physical models based on the distribution of power in a dynamic structure in the case of hand-arm vibrations
    Autorzy:
    Dobry, M. W.
    Hermann, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/280538.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    hand-arm vibrations
    biomechanical system
    power distribution
    Opis:
    The main aim of this study is to present an energy comparison of two human physical models taking into account hand-arm vibrations, which are based on the power distribution in their dynamic structure. The method used in the study takes advantage of a close relationship between the dynamics of the systems and energy-related phenomena that occur within them. The energy comparison of the two human physical models required construction of energy models of a Human-Tool system and finding their solutions. For this purpose, programs have been developed using the MATLAB/simulink software to simulate power distribution in the systems. The simulation revealed a discrepancy between the two models in terms of three types of powers and globally in the system as a whole.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2015, 53, 1; 3-13
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the effectiveness of anti-vibration gloves. A comparison of the conventional and energy method. Analysis and interpretation of results - part two
    Autorzy:
    Hermann, T.
    Dobry, M. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/128295.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Poznańska. Instytut Mechaniki Stosowanej
    Tematy:
    biomechanical system
    local vibration
    energy method of assessment
    układ biomechaniczny
    drgania miejscowe
    energetyczna metoda oceny
    Opis:
    The article is the second part of the article entitled “Assessment of the effectiveness of anti-vibration gloves. A comparison of the conventional and energy method. Introduction - part one” [4], which presents the assumptions and the construction of models of the biodynamic system consisting of the human operator, the anti-vibration glove and the hand-held power tool. The second part is devoted to a comparative analysis and interpretation of results obtained by means of the two methods. The analysis reveals a positive effect of the anti-vibration glove as a personal protective equipment, which reduces the operator’s exposure to vibrations generated by the angle grinder. However, the effectiveness of the glove was assessed differently by the conventional or the energy method. It was also found that the energy method was a better tool for analyzing the impact of vibrations at different phases of the tool’s operation.
    Źródło:
    Vibrations in Physical Systems; 2017, 28; 1-9
    0860-6897
    Pojawia się w:
    Vibrations in Physical Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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