Experimental and numerical study of the crack position and depth effects on natural frequencies of turbine blades
Other Title(s)
دراسة عملية و عددية لتأثير موقع و عمق الحز على الترددات الطبيعية لريش التورباين
Joint Authors
Falih, Mustafa Rahman
Atiyyah, Qasim Abbas
Source
Journal of University of Babylon for Engineering Sciences
Issue
Vol. 27, Issue 3 (30 Sep. 2019), pp.332-344, 13 p.
Publisher
Publication Date
2019-09-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Abstract EN
Turbine blades are the most important and expensive part of turbines; the losses due to maintenance is very large so must be analyze the causes of failure that may occur due to manufacturing defects or vibrations resulting from operating and other service conditions.
in this work will, focus on vibrationthat occurs due to operating conditions.
the blade represents as a cantilever beam manufactured fromaluminum, a square crack have constant breadth 5 mm formed on the blade for positions from (5 to 30) cm to fixed end with different crack depths (2,4,6) mm.the experimental work results were computed by using impulse test, and numerical result gain using finite element method.
good agreement was found between the results.the results showed that the increasing in crack’s depth caused decreasing in the fundamental natural frequency of blade for all crack positions.
American Psychological Association (APA)
Atiyyah, Qasim Abbas& Falih, Mustafa Rahman. 2019. Experimental and numerical study of the crack position and depth effects on natural frequencies of turbine blades. Journal of University of Babylon for Engineering Sciences،Vol. 27, no. 3, pp.332-344.
https://search.emarefa.net/detail/BIM-936789
Modern Language Association (MLA)
Atiyyah, Qasim Abbas& Falih, Mustafa Rahman. Experimental and numerical study of the crack position and depth effects on natural frequencies of turbine blades. Journal of University of Babylon for Engineering Sciences Vol. 27, no. 3 (2019), pp.332-344.
https://search.emarefa.net/detail/BIM-936789
American Medical Association (AMA)
Atiyyah, Qasim Abbas& Falih, Mustafa Rahman. Experimental and numerical study of the crack position and depth effects on natural frequencies of turbine blades. Journal of University of Babylon for Engineering Sciences. 2019. Vol. 27, no. 3, pp.332-344.
https://search.emarefa.net/detail/BIM-936789
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 342-343
Record ID
BIM-936789