| 摘要 |
A shrink-fit coupling includes a discontinuous ring between a ceramic stub shaft of a turbine rotor and an inner diameter r 2 of a metallic shaft which typically supports a compressor rotor. If the materials for the ceramic stub shaft and the discontinuous ring are pre-determined and the radius of the ceramic stub shaft is also given, then the inner radius r 2 of the shaft should be chosen by the equation: r 2 =(CTE 1 -CTE 2 )/(CTE 3 -CTE 2 ) r 1.
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