Title: Contact Analysis of Interlocked Joint for Steam Turbine Integrally Shrouded Blades
Abstract: A numerical model of interlocked joint for steam turbine integral shrouded blade was presented,and the model and method for calculating the tightness of shroud was advanced.In virtue of ALGOR,a 1 029mm blade is taken as an example;the tightness of shroud was calculated and analyzed under different rotation speed by using of contact analysis method.Influence of centrifugal force is analyzed,and the influence of original clearance δ and the angle α of shroud interface to the direction of circle are mainly analyzed under working rotation speed.Analysis results indicate: the contact tightness is lessening along with α is increasing;δ and centrifugal force plays a main role to the tightness change.The study provided an academic guidance for interlocked blades with shroud in design stage and optimization.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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