Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes
Abstract
The beam connects two bridge cranes with the overall lifting capacity of 500 t (2x250 t) and enables their simultaneous conjoint operation during the refurbishment or capital repair of hydroelectric equi-pment at the hydro power plant "Djerdap 2". Two braces are being installed instead of two hooks when that situation occurs. Braces are loaded with 250 t (2.5 MN) each, while threaded spindle is loaded with 500 t (5 MN). Integrity of structures is a relatively new scientific and engineering discipline which in a broader sense comprises state analysis, behaviour and loosening diagnostics, service life evaluation and refurbi-shment of structures, which means that, beside the usual situation in which it is necessary to evaluate the integrity of a structure when a flaw gets detected by means of non-destructive tests, this discipline also comprises structural stress state analysis. Detection of internal defects by means of ultrasonic testing was performed in order to analyze the state of bra...ces and of the threaded spindle. On the basis of performed analytical calculations it was determined that their integrity would not be jeopardized during the refurbishment or capital repair of hydroelectric equipment at the hydro power plant "Djerdap 2".
Keywords:
cranes / non-destructive testing / braces / threaded spindle / structural integritySource:
Energija (Energija, ekonomija, ekologija), 2015, 17, 1-2, 319-324Publisher:
- Savez energetičara
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)
- Development of new revitalization methodologies for hydro power plant turbine and hydro-mechanical equipment in relation to causes of material degradation (RS-MESTD-Technological Development (TD or TR)-35002)
Collections
Institution/Community
Mašinski fakultetTY - JOUR AU - Arsić, Miodrag AU - Bošnjak, Srđan AU - Grabulov, Vencislav AU - Međo, Bojan AU - Savić, Zoran PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5262 AB - The beam connects two bridge cranes with the overall lifting capacity of 500 t (2x250 t) and enables their simultaneous conjoint operation during the refurbishment or capital repair of hydroelectric equi-pment at the hydro power plant "Djerdap 2". Two braces are being installed instead of two hooks when that situation occurs. Braces are loaded with 250 t (2.5 MN) each, while threaded spindle is loaded with 500 t (5 MN). Integrity of structures is a relatively new scientific and engineering discipline which in a broader sense comprises state analysis, behaviour and loosening diagnostics, service life evaluation and refurbi-shment of structures, which means that, beside the usual situation in which it is necessary to evaluate the integrity of a structure when a flaw gets detected by means of non-destructive tests, this discipline also comprises structural stress state analysis. Detection of internal defects by means of ultrasonic testing was performed in order to analyze the state of braces and of the threaded spindle. On the basis of performed analytical calculations it was determined that their integrity would not be jeopardized during the refurbishment or capital repair of hydroelectric equipment at the hydro power plant "Djerdap 2". PB - Savez energetičara T2 - Energija (Energija, ekonomija, ekologija) T1 - Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes EP - 324 IS - 1-2 SP - 319 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_machinery_5262 ER -
@article{ author = "Arsić, Miodrag and Bošnjak, Srđan and Grabulov, Vencislav and Međo, Bojan and Savić, Zoran", year = "2015", abstract = "The beam connects two bridge cranes with the overall lifting capacity of 500 t (2x250 t) and enables their simultaneous conjoint operation during the refurbishment or capital repair of hydroelectric equi-pment at the hydro power plant "Djerdap 2". Two braces are being installed instead of two hooks when that situation occurs. Braces are loaded with 250 t (2.5 MN) each, while threaded spindle is loaded with 500 t (5 MN). Integrity of structures is a relatively new scientific and engineering discipline which in a broader sense comprises state analysis, behaviour and loosening diagnostics, service life evaluation and refurbi-shment of structures, which means that, beside the usual situation in which it is necessary to evaluate the integrity of a structure when a flaw gets detected by means of non-destructive tests, this discipline also comprises structural stress state analysis. Detection of internal defects by means of ultrasonic testing was performed in order to analyze the state of braces and of the threaded spindle. On the basis of performed analytical calculations it was determined that their integrity would not be jeopardized during the refurbishment or capital repair of hydroelectric equipment at the hydro power plant "Djerdap 2".", publisher = "Savez energetičara", journal = "Energija (Energija, ekonomija, ekologija)", title = "Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes", pages = "324-319", number = "1-2", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_machinery_5262" }
Arsić, M., Bošnjak, S., Grabulov, V., Međo, B.,& Savić, Z.. (2015). Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes. in Energija (Energija, ekonomija, ekologija) Savez energetičara., 17(1-2), 319-324. https://hdl.handle.net/21.15107/rcub_machinery_5262
Arsić M, Bošnjak S, Grabulov V, Međo B, Savić Z. Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes. in Energija (Energija, ekonomija, ekologija). 2015;17(1-2):319-324. https://hdl.handle.net/21.15107/rcub_machinery_5262 .
Arsić, Miodrag, Bošnjak, Srđan, Grabulov, Vencislav, Međo, Bojan, Savić, Zoran, "Integrity of beam braces and threaded spindle for conjoint operation of two 5 MN bridge cranes" in Energija (Energija, ekonomija, ekologija), 17, no. 1-2 (2015):319-324, https://hdl.handle.net/21.15107/rcub_machinery_5262 .