title: ÐÐ¸Ð±ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐµÑÐ°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº Ð³Ð°Ð·Ð¾Ð²ÑÑ ÑÑÑÐ±Ð¸Ð½
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: Vibration analysis of ceramic blades of gas turbines
Creators: name: ÐÐ°Ð½ Ð§Ð¶ÑÐ½ÑÑ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: 2022
Subjects: ÐÐ°Ð·Ð¾Ð²ÑÐµ ÑÑÑÐ±Ð¸Ð½Ñ
ÐÐ°Ð³ÑÐ°Ð½Ð¶Ð° ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ
ÐÐ±Ð¾Ð»Ð¾ÑÐºÐ¸
Ð²Ð¸Ð±ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐ±Ð¸Ð½Ð½ÑÑ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº
Ð²Ð°ÑÐ¸Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ ÑÐ°ÑÑÑÑÐ° ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹
ÑÐµÐ¾ÑÐ¸Ñ Ð¾Ð±Ð¾Ð»Ð¾ÑÐµÐº
turbine blade vibrations
variational method for calculation of vibrations
theory of shells

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description: Topic of the final qualification work: Â«Vibration analysis of ceramic blades of gas turbinesÂ». This work is devoted to the study of vibrations of a ceramic gas turbine blade made of ceramic based on aluminum oxide. The turbine blade is considered using a shell model. A variational approach based on the Lagrange equation of the 2nd kind is used. When compiling an expression approximating deflections, it was assumed that the blade performs only bending vibrations, and the cross section experiences deformations in its plane. During the study, the following tasks were solved: 1.Â Calculation of natural frequencies and blade shapes. 2.Â Calculation of forced vibrations of the blade with the determination of mechanical stresses.As a result of the study, the amplitudes of forced oscillations of the blade, which is affected by a harmonic perturbing force, were found; the von Mises stress distribution over the entire volume of the blade was obtained. The proposed approach to considering the vibrations of turbine blades can be used to assess the vibrational reliability of the designed blade.