Optimization of the bucket wheel boom length using structural reliability approach
Abstract
In this paper, structural reliability is applied to compare the original
bucket wheel boom (BWB) of excavator SchRs 740 and the series of boom
structures obtained by lengthening the original boom from 0 to 10 m.
Stress field of BWE is acquired using finite element method. Then, stresses
and yield criterion are modeled using probability density functions to
account for uncertainties in their randomness. This stochastic approach is
used to determine BWB’s reliability, reliability index and probability of
failure, with respect to various cases of optimization, namely, structure
lengthening. Consequently, it enabled the evaluation, quantification and
comparison of overall response of the similar structures taking into
account range of stress rather than conventionally based single value
approach. So, structural reliability approach can be used to evaluate,
compare similar structures and thus, provide more sophisticated
assessment than most of the structural analysis that are d...eterministic in
their nature.
Keywords:
structural reliability / reliability index / bucket wheel boom / ucket wheel excavator (BWE) SchRs 740 / finite element analysis / stress analysisSource:
Proceedings of the XXIV International Conference MHCL’22, 2022Funding / projects:
- Developed new methods for diagnosis and examination mechanical structures (RS-MESTD-Technological Development (TD or TR)-35040)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Petrović, Ana AU - Momčilović, Nikola AU - Jovanović, Miloš AU - Petrović, Branko PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6012 AB - In this paper, structural reliability is applied to compare the original bucket wheel boom (BWB) of excavator SchRs 740 and the series of boom structures obtained by lengthening the original boom from 0 to 10 m. Stress field of BWE is acquired using finite element method. Then, stresses and yield criterion are modeled using probability density functions to account for uncertainties in their randomness. This stochastic approach is used to determine BWB’s reliability, reliability index and probability of failure, with respect to various cases of optimization, namely, structure lengthening. Consequently, it enabled the evaluation, quantification and comparison of overall response of the similar structures taking into account range of stress rather than conventionally based single value approach. So, structural reliability approach can be used to evaluate, compare similar structures and thus, provide more sophisticated assessment than most of the structural analysis that are deterministic in their nature. C3 - Proceedings of the XXIV International Conference MHCL’22 T1 - Optimization of the bucket wheel boom length using structural reliability approach UR - https://hdl.handle.net/21.15107/rcub_machinery_6012 ER -
@conference{ author = "Petrović, Ana and Momčilović, Nikola and Jovanović, Miloš and Petrović, Branko", year = "2022", abstract = "In this paper, structural reliability is applied to compare the original bucket wheel boom (BWB) of excavator SchRs 740 and the series of boom structures obtained by lengthening the original boom from 0 to 10 m. Stress field of BWE is acquired using finite element method. Then, stresses and yield criterion are modeled using probability density functions to account for uncertainties in their randomness. This stochastic approach is used to determine BWB’s reliability, reliability index and probability of failure, with respect to various cases of optimization, namely, structure lengthening. Consequently, it enabled the evaluation, quantification and comparison of overall response of the similar structures taking into account range of stress rather than conventionally based single value approach. So, structural reliability approach can be used to evaluate, compare similar structures and thus, provide more sophisticated assessment than most of the structural analysis that are deterministic in their nature.", journal = "Proceedings of the XXIV International Conference MHCL’22", title = "Optimization of the bucket wheel boom length using structural reliability approach", url = "https://hdl.handle.net/21.15107/rcub_machinery_6012" }
Petrović, A., Momčilović, N., Jovanović, M.,& Petrović, B.. (2022). Optimization of the bucket wheel boom length using structural reliability approach. in Proceedings of the XXIV International Conference MHCL’22. https://hdl.handle.net/21.15107/rcub_machinery_6012
Petrović A, Momčilović N, Jovanović M, Petrović B. Optimization of the bucket wheel boom length using structural reliability approach. in Proceedings of the XXIV International Conference MHCL’22. 2022;. https://hdl.handle.net/21.15107/rcub_machinery_6012 .
Petrović, Ana, Momčilović, Nikola, Jovanović, Miloš, Petrović, Branko, "Optimization of the bucket wheel boom length using structural reliability approach" in Proceedings of the XXIV International Conference MHCL’22 (2022), https://hdl.handle.net/21.15107/rcub_machinery_6012 .