Results 1 to 10 of about 20,931 (168)

Strip loading test theory and equipment development

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
One of the important issues for geotechnical engineers is the characterization of soil properties such as cohesion and internal friction angle by means of soil testing.
Jiliang Li
doaj   +2 more sources

Slow Drift-Oscillations of a Ship in Irregular Waves [PDF]

open access: yesModeling, Identification and Control, 1980
A procedure to calculate horizontal slow drift excitation forces on an infinitely long horizontal cylinder in irregular beam sea waves is presented. The hydrodynamic boundary-value problem is solved correctly to second order in wave amplitude. Results in
Odd M. Faltinsen, Arne E. Løken
doaj   +1 more source

Design Method of High-efficiency Propeller for Solar-powered UAV in Low Altitude

open access: yesHangkong gongcheng jinzhan, 2022
Currently,the design of conventional propeller and high altitude propeller is popular,and the study on propeller for solar-powered unmanned aerial vehicle(UAV)in low altitude is few.Therefore,a high-efficiency propeller design method for solar-powered ...
QIU Huizhuang   +2 more
doaj   +1 more source

Nonlinear Time-Domain Strip Theory Formulation for Low-Speed Manoeuvering and Station-Keeping [PDF]

open access: yesModeling, Identification and Control, 2004
This paper presents a computer effective nonlinear time-domain strip theory formulation for dynamic positioning (DP) and low-speed manoeuvring. Strip theory or 2D potential theory, where the ship is divided in 20 to 30 cross sections, can be used to ...
Thor I. Fossen, Øyvind N. Smogeli
doaj   +1 more source

On the Comparative Seakeeping Analysis of the Full Scale KCS by Several Hydrodynamic Approaches

open access: yesJournal of Marine Science and Engineering, 2020
The main transport channel of the global economy is represented by shipping. Engineers and hull designers are more preoccupied in ensuring fleet safety, the proper operation of the ships, and, more recently, compliance with International Maritime ...
Florin Pacuraru   +2 more
doaj   +1 more source

Sine–Gordon theory in a semi-strip [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2012
Initial-boundary value problems for complex sine-Gordon and sine-Gordon equations in a semi--strip are treated. The evolution of the Weyl function and a uniqueness result are obtained for complex sine-Gordon equation. The evolution of the Weyl function as well as an existence result and a procedure to recover solution are given for sine-Gordon equation.
openaire   +5 more sources

Determination of Seakeeping Performance for a Case Study Vessel by the Strip Theory Method

open access: yesPolish Maritime Research, 2020
The increase of seakeeping performance is of particular importance for car and passenger ferries, service ships in the gas and oil extraction industry and offshore wind power farm industry, as well as for special purpose ships (including military ...
Niklas Karol, Karczewski Artur
doaj   +1 more source

Numerical Simulation of Seakeeping Performance on the Preliminary Design of a Semi-Planing Craft

open access: yesJournal of Marine Science and Engineering, 2019
This study established a seakeeping program to evaluate the motion responses of a high speed semi-planing craft and to develop a database for future route planning.
Yu-Hsien Lin, Chia-Wei Lin
doaj   +1 more source

Generation a solution to the equations of elasticity theory for a layered strip basing on the principle of compressed mappings

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
A systematic presentation of the modified classical semi-inverse SaintVenant method as an iterative one is given on the example of generating a solution to the differential equations of elasticity theory for a long layered strip.
Evgeny M. Zveryaev   +2 more
doaj   +1 more source

STUDY ON FAILURE MECHANISM OF STRIP FOUNDATION BUILDINGS CAUSED BY SURFACE HORIZONTAL DEFORMATION IN MINING AREA [PDF]

open access: yesCivil Engineering Journal, 2019
The surface deformation caused by underground coal mining will cause great damage to the surface buildings. Especially for the strip foundation buildings, the surface horizontal deformation will cause the walls to crack and open, threatening the safe use
Xiaopeng Liu, Guangli Guo
doaj   +1 more source

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