title: ÐÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÑÐ°ÑÐºÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð¹, ÑÑÑÐ°Ð»Ð¾ÑÑÐ½Ð¾Ð¹ Ð¸ ÑÐµÑÐ¼Ð¾ÑÐ¸ÐºÐ»Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº Ð³Ð°Ð·Ð¾ÑÑÑÐ±Ð¸Ð½Ð½ÑÑ ÑÑÑÐ°Ð½Ð¾Ð²Ð¾Ðº
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Finite element analysis of short - term, fatigue and thermocyclic strength of working blades of gas turbine units
Creators: name: ÐÐ°ÐºÐºÐ°Ñ, ÐÐ°Ð´ÑÐ½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð³Ð°Ð·Ð¾ÑÑÑÐ±Ð¸Ð½Ð½Ð°Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°
ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
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ÑÑÑÐ°Ð»Ð¾ÑÑÐ½Ð°Ñ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ
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ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ ÑÐ¾ÑÐ¼Ñ
ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ ÑÐ°ÑÑÐ¾ÑÑ
Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸
gas turbine unit
finite element analysis
short-term strength
fatigue strength
thermocyclic strength
temperature field
natural shapes
natural frequencies
plastic deformations

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description: This paper examines the influence of operating modes (thermal field, rotation speed, gas pressure), manufacturing technology and choice of material on the short-term and fatigue strength of uncooled rotor blades of gas turbine units. The frequencies and modes of vibration of blades under various loading conditions are studied. The influence of the choice of different blade material options: cast nickel-based polycrystalline heat-resistant alloy, nickel-based single-crystalline heat-resistant alloy and polycrystalline titanium alloy on the stress-strain state, safety margins and vibration properties of the blade is analyzed. Tasks that were solved in the course of consideration of the issues raised in this paper: 1. Investigation of Stress-Strain State of Uncooled Gas Turbine Working Blade under Combined Effect of Thermal Field, Centrifugal Force and Gas Pressure. 2. Analysis of the effect of temperature on the stress state of the blade. 3. Analysis of the effect of rotational speed on the stress state of the blade. 4. Investigation of the influence of the choice of different blade material options: polycrystalline or single-crystalline nickel-based alloy and titanium alloy on the stress-strain state of the blade. 5. Determination of frequencies and modes of vibration of blades under different loading conditions. 6. Obtaining a Campbell diagram for the blade. 7. Investigation of the influence of the choice of different blade material options: polycrystalline or monocrystalline nickel-based alloy and titanium alloy on the vibration properties of the blade. 8. Determination of blade life 6000 rpm emergency mode, considering the occurrence of plastic deformations. 9. Investigation of fatigue strength of the blade. â