Tension of the Mooring Ropes on the Net Cage Model of Raft Type in Regular Waves.

Fujita, Shinji; Fukahori, Kazuo; Nishinokubi, Hideyuki

doi:10.2331/suisan.57.2229

Cited by 5 publications

(3 citation statements)

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“…Considering the structures have six components of responses under the wave condition, the method of pretension and radical mooring was applied and the pretension value was held at a constant near to the maximum of the wave force. 26,27 This condition was very important for the experiment because the response and motions were infinitesimal and could be neglected under the pretension. 19 Because the wave height and the netting panel height had similar effects on the wave force under certain conditions, two linear dimensions could be generalized as a function of the wave height.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Experimental study on the effect of horizontal waves on netting panels

et al. 2006

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The effect of horizontal waves on flexible netting panels is examined in this study, to evaluate the testing method of pretensioned mooring, radial systems, and flexible netting structures. The netting was suspended at a specific hanging ratio for six polyethylene panels with different characteristics. The aim was to evaluate the calculation method for horizontal wave forces on flexible netting panels. A regular wave was used in the experiment, with wave period 0.8-2.0 s and wave height 50-250 mm. The force on the netting structure was recorded by a tension transducer and digital signal recorder, and was simulated by a cubic spline in terms of the wave experiment under different wave conditions. The horizontal wave force on the netting panel changed periodically and asymmetrically, which was similar to the surface wave elevation. The horizontal wave force was related to the netting panel height and width (l), wave height (H ) and wave length (L), twine diameter (d) and bar length (a) of the mesh. Using dual series relations, least-squares approximation, and multiple stepwise regression analysis, the following formula was obtained for the horizontal wave average apex value (F) on the netting panel:.KEY WORDS: horizontal wave force, netting panel, pretensioned, flume experiment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Experimental study on the effect of horizontal waves on netting panels

et al. 2006

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“…Many attempts have been made by researchers to model the cage for wave and flow forces. [12][13][14][15][16][17][18][19][20][21][22] Further, several studies in recent years have been devoted to four key factors affecting drag force (D) and volume coefficient (Vr = [Vo -Vs]/Vo, Vo is the original volume and Vs is the remained volume) of the cage bag against flow. These factors are: (i) flow velocity (U); (ii) ratio of the depth to width of the cage (A); (iii) diameter of netting twine/bar length of mesh (d/L); and (iv) plummet weight (W).…”

Section: Introductionmentioning

confidence: 99%