Numerical Analysis of the Gas Turbine Rotor Blades Thermal State Using a Refined Mathematical Model

Morhun, Serhii

doi:10.1007/978-3-030-89902-8_9

Cited by 2 publications

(4 citation statements)

References 22 publications

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“…The study of the modern single shaft gas turbine rotor stress-strain state has been held. All the obtained results together with the data given in [1,2] would be used for the further studies of the modern GTE rotor creep and fatigue strength.…”

Section: Discussionmentioning

confidence: 99%

“…These data is needed to use the dependencies (1) -(3) and thus to solve the turbine rotor contact thermoelasticity problem. After solving this problem we use the obtained data and the data given in papers [2,12,19] to determine the refined stress-strain state of the whole turbine rotor.…”

Section: 𝜆 𝑘 = 𝜆𝑇 𝐴𝐵 𝑙 𝐴𝐵mentioning

confidence: 99%

“…On the other hand, all of these problems are interconnected, because the results of one problem solution are used as initial data for the other problems solution. Thus for the purpose of the modern single shaft three stages turbine rotor stress-strain state study the results of the fluid flow and thermal state analysis for this rotor are used as initial data [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…This fact causes changes in the nature of mechanical contact. Therefore, we can also observe changes in the heat flow parameters on the contact surfaces inside each impeller and between the impellers [2]. Therefore, the mathematical model used to solve the problem of thermoelasticity of gas turbine engine rotors must take into account all these mechanical and temperature changes on the contact surfaces of the parts forming the rotor.…”

Section: Introductionmentioning

confidence: 99%

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The Modern Single Shaft Gas Turbine Rotor Stress-Strain State Determination Taking Into Account The Contact Thermoelasticity Problem

Smetankina

Morhun

2023

Preprint

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The paper outlines a finite elements refined mathematical model of the stress-strain state of single shaft gas turbine engine that can be used in ground or floating power plants. The mathematical model is taken into consideration the contact thermoelasticity problem in the joint area of disk and blades. On the base of the developed mathematical model the fields of turbine rotor dynamic stresses and displacement have been found too. To make the clear decision about the developed mathematical model adequacy mostly loaded impeller dynamic stresses field has been found and verified by comparison with the calculated results without contact and experimental data. The turbine rotor displacements and dynamic stresses have been found for different forced vibration modes. The obtained results along with the previous studies of this rotor fluid flow and thermal state could be used in further studies of the turbine rotor creep and fatigue strength and blades crack researches.

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Section: Discussionmentioning

confidence: 99%

Section: 𝜆 𝑘 = 𝜆𝑇 𝐴𝐵 𝑙 𝐴𝐵mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations