回転機翼の強度における一寄与

概要

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Strain measurement on rotor and stator blades of axial flow compressor was carried out in service conditions in order to investigate fatigue strength of blades. Stress amplitude was about 1 kg/mm^2 in ordinary running condition, and the maximum stress amplitude was about 11 kg/mm^2 in unstable flow (such as surging). Several number of factors such as high temperature, corrosion, varying load, shape of blade etc. are combined complicately and act on the strength of blade. However the fatigue test in laboratory could not be done under the combined condition, but have been conducted on each factor separately. Consequently we could not discuss the failure of blade in detail. In this paper the strain behaviours of blade are presented, and fatigue test results are discussed in the vies point of fatigue life estimation of blade. The problems to be investigated in future were pointed out.
社団法人日本材料学会の論文
1974-01-15