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Development of a method for life assessment of blade-disc-connections of gas turbines

机译:开发燃气轮机刀片盘的寿命评估方法

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摘要

The positively engaged connection between blade and disc of a gasturbine is highly stressed by fatigue and creep fatigue loadings. For this purpose a new calculating method based on inelastic finite element analyses considering the main influences on damage was developed at MPA Stuttgart. LCF-tests with component-like specimens have been conducted for verification. Experimental data and life assessment results based on the Smith, Watson and Topper parameter are corresponding well.
机译:叶片和气囊盘之间的正直连接是通过疲劳和蠕变疲劳载荷的高度强调。为此目的,基于非弹性有限元分析的新计算方法考虑了主要对损坏的主要影响是在MPA斯图加特开发的。已经进行了具有组分样标本的LCF测试以进行验证。基于史密斯,Watson和Topper参数的实验数据和寿命评估结果相应良好。

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