- Tytuł:
- Computer modelling of roadheaders body vibration generated by the working process
- Autorzy:
-
Cheluszka, P.
Gawlik, J - Powiązania:
- https://bibliotekanauki.pl/articles/128170.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Poznańska. Instytut Mechaniki Stosowanej
- Tematy:
-
roadheader
dynamic model
dynamic loads
vibrations
kombajn chodnikowy
model dynamiczny
obciążenia dynamiczne
drgania - Opis:
- 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.
- Źródło:
-
Vibrations in Physical Systems; 2016, 27; 67-74
0860-6897 - Pojawia się w:
- Vibrations in Physical Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł