نتایج جستجو برای: pontoon

تعداد نتایج: 142  

Journal: :English: Journal of the English Association 2020

Journal: :Coastal Engineering 2022

Wave energy converters(WECs) integrated into floating breakwaters or, more generally, their designs also used as wave absorbers can provide a space- and cost-sharing solution to enhance the efficiency of coastal protection. In this study, hydrodynamic performances an oscillating buoy(OB)-type single-pontoon breakwater(SPFB) water column(OWC)-type dual-pontoon breakwaters(DPFB) are evaluated, re...

ژورنال: مهندسی دریا 2007
حبیبی, بهزاد, شفیعی فر, مهدی,

Tension leg platforms are compliant structures for oil extraction in deep water consisting of hull, deck foundation, tendons and risers. The hull is very important part of a TLP from functionality, weight and cost point of views that is made of vertical column and horizontal pontoon with circular and rectangular sections. The hull geometry plays very important rule in optimum action of the stru...

Journal: :E3S web of conferences 2021

The article discusses the stress-strain state of a reinforced concrete floating pontoon caused by critical stresses before its destruction. investigation was motivated destruction pontoon, which occurred under extreme wind and wave impacts. A method for determining wind, current loads is presented. carried out on finite element computer models. As result investigation, efforts were obtained, ca...

ژورنال: مهندسی دریا 2010
آق تومان, پیمان, حسین زاده, هادی, وفایی, فریدون,

In the present paper optimum height of skirt of Skirt Pontoon Floating Breakwater are reported by physical model. 54 tests on 3 types (skirt heights : 8,16 and 24 cm) of skirt pontoon floating breakwater is conducted in the wave flume of Soil Conservative and Watershed Research Center. Hydrodynamical and geometrical parameters were analysised. In this research optimum height of skirt to water d...

ژورنال: مهندسی دریا 2011
فروزنده, نرگس, آق تومان, پیمان , حکیم زاده, حبیب , کرمی خانیکی, علی ,

In this research study, effects of the draught and sheet height in pontoon floating sheet-breakwaters on the transmission and reflection coefficients against irregular sea waves was investigated. The project has been carried out using an experimental method within a wave flume of Soil Conservation and Watershed Research Institute. The incident waves were irregular and the wave spectrum was JONS...

Journal: :Naše More (Dubrovnik) 2022

The conversion of floating docks from single pontoon to multi is a beneficial alternative for shipyards enhance the performance facilities owned. objective this research analyze technically and economically dock pontoon. results calculations used 2.2 Finite Element Method software was amount stress at after 14.635 MPa smaller than permitted 160 MPa. Besides that, pump ballast filling capability...

2014
Young - Jun You Youn - Ju Jeong Min - Su Park

Due to a lot of limited conditions, a large box type floating structure is inevitably constructed by connecting many pontoons. When a floating structure is made with concrete, concrete shear key with saw-teeth shape is often used to carry shear force. Match casting for the shear key and precise construction on a sea are very important for making separated two pontoons as one body but those are ...

This paper investigates the induced stresses in circular single deck roofs floating on seismically excited storage tanks. Equations of motion are derived using variational principle. Response of deck floating roofs is evaluated for two different classes of ground motions; near-source and long-period far-field records. Besides time histories and frequency contents for a specific tank, peak value...

2014
Dalibor Carević Goran Lončar Neven Kuspilić

The analysis and presentation of plan view parameters for 39 marinas operating in Croatia is made in the paper to enhance improvement of the spatial and economic planning of nautical tourism in Croatia. The following plan view parameters were collected: number of berths, number of dry berths, breakwater length, fixed pier length, pontoon length, waterfront length, water basin area, territory ar...

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