CLC number: TD422
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
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Srđan M. Bošnjak, Nebojša B. Gnjatović, Sreten D. Savićević, Milorad P. Pantelić, Ivan Lj. Milenović. Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator’s slewing superstructure[J]. Journal of Zhejiang University Science A, 2016, 17(5): 353-365.
@article{title="Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator’s slewing superstructure",
author="Srđan M. Bošnjak, Nebojša B. Gnjatović, Sreten D. Savićević, Milorad P. Pantelić, Ivan Lj. Milenović",
journal="Journal of Zhejiang University Science A",
volume="17",
number="5",
pages="353-365",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1500037"
}
%0 Journal Article
%T Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator’s slewing superstructure
%A Srđan M. Bošnjak
%A Nebojša B. Gnjatović
%A Sreten D. Savićević
%A Milorad P. Pantelić
%A Ivan Lj. Milenović
%J Journal of Zhejiang University SCIENCE A
%V 17
%N 5
%P 353-365
%@ 1673-565X
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500037
TY - JOUR
T1 - Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator’s slewing superstructure
A1 - Srđan M. Bošnjak
A1 - Nebojša B. Gnjatović
A1 - Sreten D. Savićević
A1 - Milorad P. Pantelić
A1 - Ivan Lj. Milenović
J0 - Journal of Zhejiang University Science A
VL - 17
IS - 5
SP - 353
EP - 365
%@ 1673-565X
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500037
Abstract: Determining a bucket wheel excavator (BWE)’s slewing superstructure weight and its center of gravity (COG) is of extreme importance not only in the design phase, but also after the completion of the erection process and during the operation of the machine. This paper presents a critical comparative analysis of the basic parameters of the static stability of a BWE 1600 superstructure, with the parameters being obtained by both analytical and experimental procedures. The analysis shows that a relatively small difference in superstructure mass, obtained by calculation, leads to a relatively large unfavorable shifting of its COG, necessitating a significant increase in counterweight mass for balancing. A procedure for superstructure 3D model mass correction is presented based on results obtained by weighing after the completion of the erection process. The developed model provides enough accuracy to determine the superstructure’s COG in the entire domain of the bucket wheel boom inclination angle, and enables accurate load analysis of the superstructure’s vital parts. The importance of this analysis is reinforced by the finding that the procedure prescribed by standard DIN 22261-2 gives results which are not on the side of safety, as shown by an example of strength analysis of a bucket wheel boom stays’ end eyes.
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