Research Papers: Piper and Riser Technology

Undamped Vibration of Laminated Fiber-Reinforced Polymer Pipes in Water Hammer Conditions

[+] Author and Article Information
D. G. Pavlou

Department of Mechanical and
Structural Engineering and Materials Science,
University of Stavanger,
Stavanger 4036, Norway
e-mail: dimitrios.g.pavlou@uis.no

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received March 3, 2014; final manuscript received September 17, 2015; published online October 12, 2015. Assoc. Editor: Solomon Yim.

J. Offshore Mech. Arct. Eng 137(6), 061701 (Oct 12, 2015) (8 pages) Paper No: OMAE-14-1016; doi: 10.1115/1.4031669 History: Received March 03, 2014; Revised September 17, 2015

A dynamic model for undamped, water hammer-induced, radial vibration of long, thin-walled, laminated, filament wound pipes is derived. The model is based on the interaction of the unsteady flow parameters with the anisotropic elastic properties of the pipe. With the aid of integral transforms and generalized functions, an approximate solution of the derived governing equation is achieved and its implementation on a representative example is discussed.

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Fig. 1

Water hammer-induced dynamic response of an FRP pipe (the aspect ratio of the figures is 1:5 and the scale r¯=5:1 is used for the normalized radius g(x,t))

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Fig. 2

Influence of the number of layers on dynamic response of an FRP pipe

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Fig. 3

Influence of the pipe's diameter on dynamic response of an FRP pipe

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Fig. 4

Dynamic response for the transmission of petrol, sea water, glycerin

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Fig. 5

(a) Axial tension effect and (b) axial compression effect




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