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Research of Dynamic Stress Test Runner of Large Turbine
Author(s): 
Pages: 65-69
Year: Issue:  5
Journal: Dam Observation and Geotechnical Tests

Keyword:  turbinerunnerdynamic stresscrack;
Abstract: In recent years, large-scale hydro units in operation continuously. An important issue which hydro group runner cracks is caused distress Hydropower safe and stable operation with the increase in unit size and thin and structural design. In this article, dynamic stress test system to be used in different operating conditions and the transition process in the dynamic stress characteristic of the field test. Combined with dynamic stress runner field test results, the main reason to be analyzed the reason caused the runner cracks and proposed actions. Technical basis is provided the research and analysis unit stability condition and runner blade cracks.
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