Computer modelling of roadheader's body vibration generated by the working process

• Autorzy: Cheluszka P. , Gawlik J
• Konferencja: Symposium Vibrations In Physical Systems (27 ; 09-13.05.2016 ; Będlewo koło Poznania ; Polska)
• Języki publikacji: EN

Abstrakty

EN

Boom–type roadheaders represent heavy working machines used in underground mines for the drilling of dog headings, for tunnelling and – to a certain extent – for surface mining. The key working process carried out by such roadheaders is rock mining. This process, especially when cutting rocks with low workability, causes strong vibration excitations and dynamic loads not only in a roadheader cutting system, but within its entire construction. The article presents a dynamic model of a boom–type roadheader body. Four vibrating masses, representing the key subassemblies of the studied object and a seat together with a roadheader operator, are distinguished in a spatial physical model with a discrete structure. They are subject to the activity of an excitation from the loads generated in the cutting process. A mathematical model is comprised of 19 non-linear ordinary differential quotations of the second order. The model was implemented in the MATLAB/Simulink environment, in which a simulation model was created. The article presents the examples of results of numerical simulations using the established model.

Słowa kluczowe

EN

roadheader; dynamic model; dynamic loads; vibrations

PL

kombajn chodnikowy; model dynamiczny; obciążenia dynamiczne; drgania

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2016
• Tom: Vol. 27
• Strony: 67--74
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Cheluszka P.

• Institute of Mining Mechanisation, Faculty of Mining and Geology, Silesian University of Technology, Akademicka 2, 44–100 Gliwice

autor

Gawlik J

• Institute of Mining Mechanisation, Faculty of Mining and Geology, Silesian University of Technology, Akademicka 2, 44–100 Gliwice

Bibliografia

• 1. M. W. Dobry, T. Hermann, A comparison of human physical models used in the ISO 10068:2012 standard based on power distribution – PART 2, Vibrations in Physical Systems, 26 (2014) 57 – 64.
• 2. M. Dolipski, P. Cheluszka, Dynamika układu urabiania kombajnu chodnikowego, Wydawnictwo Politechniki Śląskiej, Gliwice 2002.
• 3. M. Dolipski, P. Cheluszka, P. Sobota, Numerical tests of roadheader’s boom vibrations, Vibrations in Physical Systems, 26 (2014) 65 – 72.
• 4. J. Janusz, J. Kłosiński, Wpływ wybranych strategii sterowania ruchami roboczymi żurawia samojezdnego na jego stateczność, Acta Mechanica et Automatica, 4(2) (2010) 74 – 80.
• 5. J. Kogut, Analiza spektrum odpowiedzi drgań drogowych, Praca doktorska, Politechnika Krakowska, Kraków 1999.
• 6. X. Li, B. Huang, C. Li, S. Jiang, Dynamics analysis on roadheader cutting head based on LS–DYNA, Journal of Convergence Information Technology, 7(23) (2012) 333 – 340.
• 7. I. Maciejewski, Active control of working machines seat suspension aimed at health protection against vibration, Proc. Appl. Math. Mech., 7 (2007) 4130017 – 4130018, doi: 10.1002/pamm.200700345.
• 8. B. Podsiadła (red.), Modelowanie i badania zjawisk dynamicznych wysięgników teleskopowych i żurawi samojezdnych, WNT, Warszawa 2000.
• 9. X. H. Wei, M. Xie, Dynamic analysis on the longitudinal roadheader’s cutting system, Advanced Materials Research, 619 (2013) 160 – 163.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.