Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5
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Аутори
Arsić, MiodragKarišić, D.
Veljović, A.
Rakin, Marko
Radaković, Zoran
Остала ауторства
Bošnjak, SrđanZrnić, Nenad
Конференцијски прилог (Објављена верзија)
,
Univerzitet u Beogradu, Mašinski fakultet
Метаподаци
Приказ свих података о документуАпстракт
In-service tests on bucket wheel excavator machines and structures enable assessment of structural state and quality, evaluate spatial operating effects of particular elements on carrying capacity, and determine effects of common operations of driving units and structures.
Integrity assessment largely depends on possibilities in detecting and determining the type, location and size of defects. Non-destructive tests are performed in general and are frequently characterized in detecting small defects with a required level of reliability, creating difficulties in practice, since evaluation considerably depends on objective capabilities, and also on subjective errors of the operator.
Since total fatigue life of machine parts and structures at variable loads consists of the time required for crack initiation and crack growth until final fracture, the life assessment up to crack initiation may utilize the concept of working strength, provided that load spectra are known, while crack growth... time assessment until final fracture may take advantage of fracture mechanics parameters.
The bucket wheel excavator boom tie rod integrity assessment is carried out by applying fracture mechanics parameters, where defects in tie-rod welded joints, discovered by ultrasonic and radiographic tests (nondestructive), are determined to be of sizes larger than the allowed for the designed quality class.
Кључне речи:
bucket wheel excavator / tie rod / non-destructive testing / welded joints / fracture mechanics / structural integrityИзвор:
roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade, 2009, 129-132Издавач:
- University of Belgrade, Faculty of Mechanical Engineering
Напомена:
- Navedeni su: Editors
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Институција/група
Mašinski fakultetTY - CONF AU - Arsić, Miodrag AU - Karišić, D. AU - Veljović, A. AU - Rakin, Marko AU - Radaković, Zoran PY - 2009 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5474 AB - In-service tests on bucket wheel excavator machines and structures enable assessment of structural state and quality, evaluate spatial operating effects of particular elements on carrying capacity, and determine effects of common operations of driving units and structures. Integrity assessment largely depends on possibilities in detecting and determining the type, location and size of defects. Non-destructive tests are performed in general and are frequently characterized in detecting small defects with a required level of reliability, creating difficulties in practice, since evaluation considerably depends on objective capabilities, and also on subjective errors of the operator. Since total fatigue life of machine parts and structures at variable loads consists of the time required for crack initiation and crack growth until final fracture, the life assessment up to crack initiation may utilize the concept of working strength, provided that load spectra are known, while crack growth time assessment until final fracture may take advantage of fracture mechanics parameters. The bucket wheel excavator boom tie rod integrity assessment is carried out by applying fracture mechanics parameters, where defects in tie-rod welded joints, discovered by ultrasonic and radiographic tests (nondestructive), are determined to be of sizes larger than the allowed for the designed quality class. PB - University of Belgrade, Faculty of Mechanical Engineering C3 - roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade T1 - Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5 EP - 132 SP - 129 UR - https://hdl.handle.net/21.15107/rcub_machinery_5474 ER -
@conference{ author = "Arsić, Miodrag and Karišić, D. and Veljović, A. and Rakin, Marko and Radaković, Zoran", year = "2009", abstract = "In-service tests on bucket wheel excavator machines and structures enable assessment of structural state and quality, evaluate spatial operating effects of particular elements on carrying capacity, and determine effects of common operations of driving units and structures. Integrity assessment largely depends on possibilities in detecting and determining the type, location and size of defects. Non-destructive tests are performed in general and are frequently characterized in detecting small defects with a required level of reliability, creating difficulties in practice, since evaluation considerably depends on objective capabilities, and also on subjective errors of the operator. Since total fatigue life of machine parts and structures at variable loads consists of the time required for crack initiation and crack growth until final fracture, the life assessment up to crack initiation may utilize the concept of working strength, provided that load spectra are known, while crack growth time assessment until final fracture may take advantage of fracture mechanics parameters. The bucket wheel excavator boom tie rod integrity assessment is carried out by applying fracture mechanics parameters, where defects in tie-rod welded joints, discovered by ultrasonic and radiographic tests (nondestructive), are determined to be of sizes larger than the allowed for the designed quality class.", publisher = "University of Belgrade, Faculty of Mechanical Engineering", journal = "roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade", title = "Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5", pages = "132-129", url = "https://hdl.handle.net/21.15107/rcub_machinery_5474" }
Arsić, M., Karišić, D., Veljović, A., Rakin, M.,& Radaković, Z.. (2009). Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5. in roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade University of Belgrade, Faculty of Mechanical Engineering., 129-132. https://hdl.handle.net/21.15107/rcub_machinery_5474
Arsić M, Karišić D, Veljović A, Rakin M, Radaković Z. Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5. in roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade. 2009;:129-132. https://hdl.handle.net/21.15107/rcub_machinery_5474 .
Arsić, Miodrag, Karišić, D., Veljović, A., Rakin, Marko, Radaković, Zoran, "Integrity assessment of boom tie rod on bucket wheel excavator SRS 1300 x 24/2.5" in roc. XIX International Conference on Material Handling, Constructions and Logistics, MHCL’09, Faculty of Mechanical Engineering, University of Belgrade (2009):129-132, https://hdl.handle.net/21.15107/rcub_machinery_5474 .