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Registration Number

0219U100263, 0117U003118 , R & D reports

Title

Influence of Contact Interaction Parameters and Operational Damages on Turbomachine Blades Stress Level

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Head

Kruts Vаdym O., Кандидат технічних наук

Registration Date

04-02-2019

Organization

G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine

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The objects of research are the blades of the high-pressure compressor of an aviation gas turbine engine. The purpose of the work is to study the influence of the parameters of contact interaction and operational damage on the stress-strain state of the blades of turbomachines. Research methods are numerical. Using 3D created finite element models of the blades, taking into account their design features and operational damage of the groove type, numerical experiments were conducted to determine the joint influence of the inclination angle of the contact surfaces and operational damage on their stress-strain state. The dependences of the maximum values ​​of stress intensities in the turbine blade airfoil and the shrouds on the angle of inclination of the contact surfaces in the plane of rotation of the rotor taking into account operational damage located at different heights of its airfoil. 

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2020-04-02