Temat: excavator bucket - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The influence of incrustation and chute blockage on the dynamic behaviour of a bucket wheel excavator slewing superstructure
Autorzy:: Gnjatović, Nebojša B.
Bošnjak, Sran M.
Milenović, Ivan L.J.
Powiązania:: https://bibliotekanauki.pl/articles/2055036.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: bucket wheel excavator
dynamic behaviour
adhered material
vibrations
Opis:: Exploitation of bucket wheel excavators (BWEs) is accompanied by an increase of mass due to transport and adherence of a large amount of the material. Technical regulations do not account for the dynamic behaviour of BWEs. Such problems are analysed as quasi- -static. A procedure and results of investigation of the influence of masses of the bucket wheel (BW) incrustation and soil in a blocked BW chute on the superstructure response are presented. Analysis of sensitivity of dynamic characteristics and the response to adherence of the material is conducted. The method and results can be used in the design stages of new and in reconstructions of obsolete BWEs.
Źródło:: Journal of Theoretical and Applied Mechanics; 2020, 58, 3; 573--584
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Modal analysis of gearbox transmission system in bucket wheel excavator
Autorzy:: Karray, M.
Feki, N.
Khabou, M. T.
Chaari, F.
Haddar, M.
Powiązania:: https://bibliotekanauki.pl/articles/280984.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: spiral bevel gear
helical planetary gear
bucket wheel excavator
modal properties
Opis:: Planetary gears are widely used in modern machines as ones of the most effective forms of power transmission. In this paper, a special configuration of a gearbox composed of one stage spiral bevel gear and a two stage helical planetary gear used in a bucket wheel excavator gearbox is presented to investigate its modal properties. A lumped-parameter model is formulated to obtain equations of motion and the eigenvalue problem is solved. The modes are presented in low-frequency and high-frequency bands. Distributions of modal kinetic and strain energies are studied.
Źródło:: Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 253-264
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

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