Thermally Induced Lateral Buckling Of Turbine Wheels -analytical And Experimental Correlation

Author:  Helms, H.E. and McLoed, R.N.
Source:  SESA, Vol. XVII, No. 1
Doc ID:  1959015
Year of Publication:  1959
Abstract:  
Current practice in aircraft engine design calls for lightweight degisn along with high engine efficiency. One of the components in turbojet and turboprop engines which has had weight trimmed to a minimum is the turbine wheel. New materials and improved mechanical design have made this possible. A kind of failure experienced early with the lightweight wheel design is that of lateral buckling caused by thermally induced compressive stresses in the rim and web of the wheel. Instances of this type of lateral buckling are reported in this paper together with experimental verification of previously presented theory.