Тип публикации: статья из журнала
Год издания: 2019
Ключевые слова: blade, impeller of hydraulic turbine, optical method, remaining life expectancy, residual stresses, speckle interferometry, strain measurement
Аннотация: The technologies and results of an experimental determination of residual stresses in the impeller blades of a hydraulic unit of the Krasnoyarsk hydroelectric power plant obtained through technical diagnostics beyond the projected periods of use are presented. The investigations of the residual stresses were performed by strain meaПоказать полностьюsurement with excision of templates and the optical method of speckle interferometry. Factual values of the components of the residual stresses in two zones of the blade with nonuniform stress fields were obtained.
Журнал: Power Technology and Engineering
Выпуск журнала: Т. 53, № 1
Номера страниц: 33-38
ISSN журнала: 1570145X
Место издания: Москва
Издатель: Springer New York Consultants Bureau