An analytical method for dynamic analysis of fluid conveying viscoelastic pipes b

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REZAEE MOUSA; ARAB MALEKI VAHID

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Journal: IRANIAN JOURNAL OF MECHANICAL ENGINEERING (ENGLISH) Year:2019 | Volume:21 | Issue:1 Page(s): 6-29

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Title

An analytical method for dynamic analysis of fluid conveying viscoelastic pipes b

Author(s)

REZAEE MOUSA | ARAB MALEKI VAHID | Issue Writer Certificate

Keywords

Fluid conveying pipesQ1

viscoelasticQ1

Dynamic AnalysisQ2

Complex eigenvaluesQ1

InstabilityQ2

Abstract

In this paper, applying the general form of the viscoelastic model, vibration characteristics of viscoelastic Fluid conveying pipes are investigated. By considering various viscoelastic constitutive equations, the equation governing the motion of the Fluid conveying pipes is obtained, and by introducing a new analytical method, the exact mode shapes of the system are derived. Then, the effect of various system parameters on the Complex eigenvalues and the Instability of kind divergence and flutter are studied. The results show that for a pipe with viscoelastic behavior, the natural frequencies decrease and at the higher modes, the divergence critical fluid velocity increases dramatically. As a new result, it is observed the viscoelastic Fluid conveying pipes with certain values of viscoelastic parameters, can experience the flutter Instability before the divergence one. In addition, because the viscoelastic behavior does not affect all the vibration mode shapes in the same manner, therefore, the coupled-mode flutter does not take place.

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APA: Copy

REZAEE, MOUSA, & ARAB MALEKI, VAHID. (2019). An analytical method for dynamic analysis of fluid conveying viscoelastic pipes b. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), 21(1 ), 6-29. SID. https://sid.ir/paper/83514/en

Vancouver: Copy

REZAEE MOUSA, ARAB MALEKI VAHID. An analytical method for dynamic analysis of fluid conveying viscoelastic pipes b. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH)[Internet]. 2019;21(1 ):6-29. Available from: https://sid.ir/paper/83514/en

IEEE: Copy

MOUSA REZAEE, and VAHID ARAB MALEKI, “An analytical method for dynamic analysis of fluid conveying viscoelastic pipes b,” JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), vol. 21, no. 1 , pp. 6–29, 2019, [Online]. Available: https://sid.ir/paper/83514/en

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