Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630
Апстракт
A crack occurred on gusset plate of pylon vertical truss of bucket wheel excavator (BWE) SchRs630. Numerical calculation model of pylons, slewing platform and undercarriage was formed. Calculations are done using finite element method (FEM) for different load cases. It was determined that the inertial forces caused by bucket wheel boom and counterweight boom masses while breaking slew drive cause the stress concentration in this spot. To complete the whole picture of the structure behaviour dynamic analysis was performed. Based on calculation and distribution of potential and kinetic energy on oscillation modes, using the reanalysis method, redesign of this part of the structure was proposed. The stress was reduced by over 20 % by the proposed redesign solution.
Кључне речи:
stress concentration / reanalysis / finite element method (FEM) / crack propagation / bucket wheel excavator SchRs630 pylonsИзвор:
Tehnički vjesnik, 2018, 25, 2, 486-491Издавач:
- Univ Osijek, Tech Fac, Slavonski Brod
Финансирање / пројекти:
- Развој савремених метода дијагностике и испитивања машинских структура (RS-MESTD-Technological Development (TD or TR)-35040)
- Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (RS-MESTD-Technological Development (TD or TR)-35011)
DOI: 10.17559/TV-20160919123405
ISSN: 1330-3651
WoS: 000430936800024
Scopus: 2-s2.0-85045920126
Институција/група
Inovacioni centarTY - JOUR AU - Petrović, Ana AU - Maneski, Taško AU - Trišović, Nataša AU - Ignjatović, Dragan AU - Dunjić, Momčilo PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2935 AB - A crack occurred on gusset plate of pylon vertical truss of bucket wheel excavator (BWE) SchRs630. Numerical calculation model of pylons, slewing platform and undercarriage was formed. Calculations are done using finite element method (FEM) for different load cases. It was determined that the inertial forces caused by bucket wheel boom and counterweight boom masses while breaking slew drive cause the stress concentration in this spot. To complete the whole picture of the structure behaviour dynamic analysis was performed. Based on calculation and distribution of potential and kinetic energy on oscillation modes, using the reanalysis method, redesign of this part of the structure was proposed. The stress was reduced by over 20 % by the proposed redesign solution. PB - Univ Osijek, Tech Fac, Slavonski Brod T2 - Tehnički vjesnik T1 - Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630 EP - 491 IS - 2 SP - 486 VL - 25 DO - 10.17559/TV-20160919123405 ER -
@article{ author = "Petrović, Ana and Maneski, Taško and Trišović, Nataša and Ignjatović, Dragan and Dunjić, Momčilo", year = "2018", abstract = "A crack occurred on gusset plate of pylon vertical truss of bucket wheel excavator (BWE) SchRs630. Numerical calculation model of pylons, slewing platform and undercarriage was formed. Calculations are done using finite element method (FEM) for different load cases. It was determined that the inertial forces caused by bucket wheel boom and counterweight boom masses while breaking slew drive cause the stress concentration in this spot. To complete the whole picture of the structure behaviour dynamic analysis was performed. Based on calculation and distribution of potential and kinetic energy on oscillation modes, using the reanalysis method, redesign of this part of the structure was proposed. The stress was reduced by over 20 % by the proposed redesign solution.", publisher = "Univ Osijek, Tech Fac, Slavonski Brod", journal = "Tehnički vjesnik", title = "Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630", pages = "491-486", number = "2", volume = "25", doi = "10.17559/TV-20160919123405" }
Petrović, A., Maneski, T., Trišović, N., Ignjatović, D.,& Dunjić, M.. (2018). Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630. in Tehnički vjesnik Univ Osijek, Tech Fac, Slavonski Brod., 25(2), 486-491. https://doi.org/10.17559/TV-20160919123405
Petrović A, Maneski T, Trišović N, Ignjatović D, Dunjić M. Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630. in Tehnički vjesnik. 2018;25(2):486-491. doi:10.17559/TV-20160919123405 .
Petrović, Ana, Maneski, Taško, Trišović, Nataša, Ignjatović, Dragan, Dunjić, Momčilo, "Identification of Crack Initiation Cause in Pylons Construction of the Excavator SchRs630" in Tehnički vjesnik, 25, no. 2 (2018):486-491, https://doi.org/10.17559/TV-20160919123405 . .