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http://dx.doi.org/10.18770/KEPCO.2018.04.01.019

Spin Testing for the Endurance Verification of Gas Turbine Blades  

Lee, Dooyoung (KEPCO Research Institute, Korea Electric Power Corporation)
Kim, Doosoo (KEPCO Research Institute, Korea Electric Power Corporation)
Son, Taeha (KEPCO Research Institute, Korea Electric Power Corporation)
Goo, Jaeryang (KEPCO Research Institute, Korea Electric Power Corporation)
Publication Information
KEPCO Journal on Electric Power and Energy / v.4, no.1, 2018 , pp. 19-24 More about this Journal
Abstract
The long-term research and development for the production of domestic blades has been consistently performed. As the direct and indirect results of its nationwide technologies in precision casting have been improved as well as maintenance costs for turbine machinery has been reduced. Whereas, there are still not a few concerns about the reliability of newly manufactured blades in spite of the quality certificate in metallurgical and mechanical properties. A spin tester is a machine that gives centrifugal loading to a rotating part, and its practical application is the overspeed test that is usually used to check the quality of products. A new spin rig has been constructed in KEPCO Research Institute for the purpose of evaluating the reliability of blades. In this paper, the test methodology for low cycle fatigue damage mechanism as well as the overspeed test for newly developed blades is described, and their reliability is evaluated too.
Keywords
Spin Rig; Overspeed Test; Reliability; Low Cycle Fatigue; Success Run Test;
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  • Reference
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