The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance
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2018
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Sensitivity analysis of the dynamic response of both the designed and the actual models of a slewing superstructure with two masts to the variation of the counterweight mass and the degree of accuracy of the approximation polynomials of the digging resistance was conducted in the paper. Spatial reduced dynamic models of the bucket wheel excavator SchRs 1600 were used as a basis for the presented investigations. Based on the comparative analysis of the calculation results, the following conclusions were drawn: (a) mass of the counterweight has a significantly higher influence on the maximum intensities of accelerations of the referent points than on the spectrum of natural frequencies, (b) the accuracy of approximations of the digging resistance and the maximum values of accelerations differ by an order of magnitude, for the approximation trigonometric polynomial of the same number of harmonics.
Ključne reči:
dynamic response / digging resistance approximation / counterweight mass variation / bucket wheel excavatorIzvor:
Archives of Mining Sciences, 2018, 63, 2, 491-509Izdavač:
- Polska Akad Nauk, Polish Acad Sciences, Warszawa
Finansiranje / projekti:
- Održivost i unapređenje mašinskih sistema u energetici i transportu primenom forenzičkog inženjerstva, eko i robust dizajna (RS-MESTD-Technological Development (TD or TR)-35006)
DOI: 10.24425/122909
ISSN: 0860-7001
WoS: 000438234200016
Scopus: 2-s2.0-85049421176
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Gnjatović, Nebojša AU - Bošnjak, Srđan AU - Stefanović, Aleksandar Z. PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2819 AB - Sensitivity analysis of the dynamic response of both the designed and the actual models of a slewing superstructure with two masts to the variation of the counterweight mass and the degree of accuracy of the approximation polynomials of the digging resistance was conducted in the paper. Spatial reduced dynamic models of the bucket wheel excavator SchRs 1600 were used as a basis for the presented investigations. Based on the comparative analysis of the calculation results, the following conclusions were drawn: (a) mass of the counterweight has a significantly higher influence on the maximum intensities of accelerations of the referent points than on the spectrum of natural frequencies, (b) the accuracy of approximations of the digging resistance and the maximum values of accelerations differ by an order of magnitude, for the approximation trigonometric polynomial of the same number of harmonics. PB - Polska Akad Nauk, Polish Acad Sciences, Warszawa T2 - Archives of Mining Sciences T1 - The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance EP - 509 IS - 2 SP - 491 VL - 63 DO - 10.24425/122909 ER -
@article{ author = "Gnjatović, Nebojša and Bošnjak, Srđan and Stefanović, Aleksandar Z.", year = "2018", abstract = "Sensitivity analysis of the dynamic response of both the designed and the actual models of a slewing superstructure with two masts to the variation of the counterweight mass and the degree of accuracy of the approximation polynomials of the digging resistance was conducted in the paper. Spatial reduced dynamic models of the bucket wheel excavator SchRs 1600 were used as a basis for the presented investigations. Based on the comparative analysis of the calculation results, the following conclusions were drawn: (a) mass of the counterweight has a significantly higher influence on the maximum intensities of accelerations of the referent points than on the spectrum of natural frequencies, (b) the accuracy of approximations of the digging resistance and the maximum values of accelerations differ by an order of magnitude, for the approximation trigonometric polynomial of the same number of harmonics.", publisher = "Polska Akad Nauk, Polish Acad Sciences, Warszawa", journal = "Archives of Mining Sciences", title = "The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance", pages = "509-491", number = "2", volume = "63", doi = "10.24425/122909" }
Gnjatović, N., Bošnjak, S.,& Stefanović, A. Z.. (2018). The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance. in Archives of Mining Sciences Polska Akad Nauk, Polish Acad Sciences, Warszawa., 63(2), 491-509. https://doi.org/10.24425/122909
Gnjatović N, Bošnjak S, Stefanović AZ. The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance. in Archives of Mining Sciences. 2018;63(2):491-509. doi:10.24425/122909 .
Gnjatović, Nebojša, Bošnjak, Srđan, Stefanović, Aleksandar Z., "The dependency of the dynamic response of a two mast bucket wheel excavator superstructure on the counterweight mass and the degree of fourier approximation of the digging resistance" in Archives of Mining Sciences, 63, no. 2 (2018):491-509, https://doi.org/10.24425/122909 . .