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Дослідження динамічного напруженого стану в лопатках турбомашин методом комбінованого розкладання по власним формам напружень та переміщень

Дослідження динамічного напруженого стану в лопатках турбомашин методом комбінованого розкладання по власним формам напружень та переміщень

Abstract

Разработан метод анализа динамического напряженного состояния в турбинных лопатках, возникающий в процессе вынужденных гармонических колебаний. Предложенный подход базируется на разложении в ряд по формам перемещений и формам напряжений собственных колебаний и предусматривает существенную конденсацию размерности задачи при использовании подробных конечноэлементных моделей.

Розроблено метод для аналізу динамічного напруженого стану в турбінних лопатках, що виникає в процесі вимушених гармонічних коливань. Запропонований підхід базується на розкладанні в ряд по формам переміщень і формам напружень власних коливань, та передбачає суттєву конденсацію розмірності задачі при використанні докладних скінченно-елементних моделей.

A method has been developed for analysis of the dynamic stress state in turbine blades, which is occurring in forced harmonic vibrations. The proposed approach is based on a superposition of the displacement and stress normal modes, and provides a substantial reduction of the problem size for large finite element models.

Keywords

Динамічний напружений стан; турбінні лопатки; скінченно-елементні моделі, Dynamic stress state; turbine blades; finite element models

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold