Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure
2016
Authors
Bošnjak, SrđanGnjatović, Nebojša
Savićević, Sreten
Pantelić, Milorad P.
Milenović, Ivan Lj.
Article (Published version)
Metadata
Show full item recordAbstract
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 inclinatio...n 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.
Keywords:
Strength / Slewing superstructure / Parameters of the static stability / Loads / Bucket wheel excavator (BWE)Source:
Journal of Zhejiang University-Science A, 2016, 17, 5, 353-365Publisher:
- Zhejiang Univ, Hangzhou
Funding / projects:
- Sustainability and improvement of mechanical systems in energetic, material handling and conveying by using forensic engineering, environmental and robust design (RS-MESTD-Technological Development (TD or TR)-35006)
DOI: 10.1631/jzus.A1500037
ISSN: 1673-565X
WoS: 000376404400002
Scopus: 2-s2.0-84984850948
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Mašinski fakultetTY - JOUR AU - Bošnjak, Srđan AU - Gnjatović, Nebojša AU - Savićević, Sreten AU - Pantelić, Milorad P. AU - Milenović, Ivan Lj. PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2424 AB - 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. PB - Zhejiang Univ, Hangzhou T2 - Journal of Zhejiang University-Science A T1 - Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure EP - 365 IS - 5 SP - 353 VL - 17 DO - 10.1631/jzus.A1500037 ER -
@article{ author = "Bošnjak, Srđan and Gnjatović, Nebojša and Savićević, Sreten and Pantelić, Milorad P. and Milenović, Ivan Lj.", year = "2016", 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.", publisher = "Zhejiang Univ, Hangzhou", journal = "Journal of Zhejiang University-Science A", title = "Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure", pages = "365-353", number = "5", volume = "17", doi = "10.1631/jzus.A1500037" }
Bošnjak, S., Gnjatović, N., Savićević, S., Pantelić, M. P.,& Milenović, I. Lj.. (2016). Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure. in Journal of Zhejiang University-Science A Zhejiang Univ, Hangzhou., 17(5), 353-365. https://doi.org/10.1631/jzus.A1500037
Bošnjak S, Gnjatović N, Savićević S, Pantelić MP, Milenović IL. Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure. in Journal of Zhejiang University-Science A. 2016;17(5):353-365. doi:10.1631/jzus.A1500037 .
Bošnjak, Srđan, Gnjatović, Nebojša, Savićević, Sreten, Pantelić, Milorad P., Milenović, Ivan Lj., "Basic parameters of the static stability, loads and strength of the vital parts of a bucket wheel excavator's slewing superstructure" in Journal of Zhejiang University-Science A, 17, no. 5 (2016):353-365, https://doi.org/10.1631/jzus.A1500037 . .