Suggested energy equivalence approach for the dynamic analysis of tapered chimneys
Joint Authors
al-Azzawi, Thamir K.
Ghaylan, Diya Badr
Source
Issue
Vol. 11, Issue 3 (30 Sep. 2005), pp.509-521, 13 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2005-09-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Abstract EN
In this paper an energy equivalence approach is suggested for the dynamic analysis of tapered chimneys.
For any mode of vibration ; by equating the Kinetic energy of the actual chimney to that of an equivalent prismatic chimney, a hypothetical equivalent uniform mass has been obtained for the equivalent chimney .Also, by equating the strain energy of the actual and equivalent prismatic chimney , a hypothetical equivalent constant moment of inertia has been derived for the equivalent chimney.
The accuracy of proposed equivalent prismatic model has been checked by comparing the results with that of the conventional segmented model using the stiffness method ,with is deemed to be the more rigorous solution .Free and forced dynamic analyses have been carried out and the results indicated that the proposed equivalence energy model is in a good agreement with the stiffness(segmented chimney) model .The maximum discrepancy in the fundamental natural frequency ranges between 1.2%and 1.44%.
The difference in the maximum dynamic bending moment due to wind vortex shedding is about 3.0%.
American Psychological Association (APA)
al-Azzawi, Thamir K.& Ghaylan, Diya Badr. 2005. Suggested energy equivalence approach for the dynamic analysis of tapered chimneys. Journal of Engineering،Vol. 11, no. 3, pp.509-521.
https://search.emarefa.net/detail/BIM-360760
Modern Language Association (MLA)
al-Azzawi, Thamir K.& Ghaylan, Diya Badr. Suggested energy equivalence approach for the dynamic analysis of tapered chimneys. Journal of Engineering Vol. 11, no. 3 (Sep. 2005), pp.509-521.
https://search.emarefa.net/detail/BIM-360760
American Medical Association (AMA)
al-Azzawi, Thamir K.& Ghaylan, Diya Badr. Suggested energy equivalence approach for the dynamic analysis of tapered chimneys. Journal of Engineering. 2005. Vol. 11, no. 3, pp.509-521.
https://search.emarefa.net/detail/BIM-360760
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 516-521
Record ID
BIM-360760