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Model Basin
A ship model basin is a basin or tank used to carry out hydrodynamic tests with ship models, for the purpose of designing a new (full sized) ship, or refining the design of a ship to improve the ship's performance at sea. It can also refer to the organization (often a company) that owns and operates such a facility. A ship model basin company is an engineering firm that acts as a contractor to the relevant shipyards, and provides hydrodynamic model tests and numerical calculations to support the design and development of ships and offshore structures. History The eminent English engineer, William Froude published a series of influential papers on ship designs for maximising stability in the 1860s. The Institution of Naval Architects eventually commissioned him to identify the most efficient hull shape. He validated his theoretical models with extensive empirical testing, using scale models for the different hull dimensions. He established a formula (now known as the Froude num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emma Maersk 2
Emma may refer to: * Emma (given name) Film * ''Emma'' (1932 film), a comedy-drama film by Clarence Brown * ''Emma'' (1996 theatrical film), a film starring Gwyneth Paltrow * ''Emma'' (1996 TV film), a British television film starring Kate Beckinsale * ''Emma'' (2020 film), a British drama film starring Anya Taylor-Joy Literature * ''Emma'' (novel), an 1815 novel by Jane Austen * '' Emma Brown'', a fragment of a novel by Charlotte Brontë, completed by Clare Boylan in 2003 * ''Emma'', a 1955 novel by F. W. Kenyon * ''Emma: A Modern Retelling'', a 2015 novel by Alexander McCall Smith * ''Emma'' (manga), a 2002 manga by Kaoru Mori and the adapted Japanese animated series * ''EMMA'' (magazine), a German feminist journal, published by Alice Schwarzer Music Artists * E.M.M.A., a 2001–2005 Swedish girl group * Emma (Welsh singer) (born 1974) * Emma Bunton (born 1976), English singer * Emma Marrone or Emma (born 1984), Italian singer Songs * "Emma" (Hot Chocolate song), 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harland & Wolff
Harland & Wolff is a British shipbuilding company based in Belfast, Northern Ireland. It specialises in ship repair, shipbuilding and offshore construction. Harland & Wolff is famous for having built the majority of the ocean liners for the White Star Line, including ''Olympic''-class trio – , and HMHS ''Britannic''. Outside of White Star Line, other ships that have been built include the Royal Navy's ; Royal Mail Line's ''Andes''; Shaw, Savill & Albion's ; Union-Castle's ; and P&O's . Harland and Wolff's official history, ''Shipbuilders to the World'', was published in 1986. As of 2011, the expanding offshore wind power industry had been the prime focus, and 75% of the company's work was based on offshore renewable energy. Early history Harland & Wolff was formed in 1861 by Edward James Harland (1831–95) and Hamburg-born Gustav Wilhelm Wolff (1834–1913; he came to the UK at age 14). In 1858 Harland, then general manager, bought the small shipyard on '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Motion Test
In marine engineering, a ship motion test is hydrodynamic test performed with ship models for the purpose of designing a new (full sized) ship, or refining the design of a ship to improve its performance at sea. Tests are carried out in a ship model basin or "towing tank". There are various types of test: the model may be towed along a straight line or circular path, and may be subjected to oscillations. Forces acting on the vessel are measured using a dynamometer. The tests may be evaluating the overall design, or focusing on the characteristics of a propeller. Straight line test The velocity-dependent derivatives Yv and Nv of the ship at any draft and trim can be determined from the model test carried in the towing tank. The model is towed with a constant velocity corresponding to a given ship Froude number at various angles of attack, β. A dynamometer at the origin O, measures the force Y and the moment N experienced by the model at each value of β. The dimensional ship value ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dieudonné Spiral Test
Dieudonné is a French name meaning "Gift of God", and thus similar to the Greek-derived Theodore or the Spanish Diosdado. It may refer to: People Given name * Dieudonné Cédor (1925–2010), Haitian painter * Dieudonné Costes (1892–1973), French aviator * Dieudonné Disi (born 1980), Rwandan long-distance and cross county runner * Dieudonne Dolassem (born 1979), Cameroonian judoka * Dieudonné Sylvain Guy Tancrède de Dolomieu or Déodat Gratet de Dolomieu (1750–1801), French geologist * Dieudonné Ganga (born c. 1946), Congolese politician and diplomat * Dieudonné Gnammankou, Beninean historian * Dieudonné de Gozon ( 1346–53), French knight * Dieudonné-Félix Godefroid or Félix Godefroid (1818–1897), Belgian harpist * Dieudonné Jamar (1878 – after 1905), Belgian racing cyclist * Dieudonné Kabongo (1950–2011), Congolese-born Belgian humorist and actor * Dieudonné Kalilulika (born 1981), Congolese football player * Dieudonné Kayembe Mbandakulu (born 194 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
System Identification
The field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data. System identification also includes the optimal design of experiments for efficiently generating informative data for fitting such models as well as model reduction. A common approach is to start from measurements of the behavior of the system and the external influences (inputs to the system) and try to determine a mathematical relation between them without going into many details of what is actually happening inside the system; this approach is called black box system identification. Overview A dynamical mathematical model in this context is a mathematical description of the dynamic behavior of a system or process in either the time or frequency domain. Examples include: * physical processes such as the movement of a falling body under the influence of gravity; * economic processes such as stock markets that react to external influences. One o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin-tiergarten Vws 20050404 P1020295 Tiergarten (, literally ''Animal Garden'', historically for ''Deer Garden'') is a locality within the borough of Mitte, in central Berlin (Germany). Notable for the great and homonymous urban park, before German reunification, it was a part of West Berlin. Until Berlin's 2001 administrative reform, Tiergarten was also the name of a borough (Bezirk), consisting of the current locality (''Ortsteil'') of Tiergarten (formerly called ''Tiergarten-Süd'') plus Hansaviertel and Moabit. A new system of road and rail tunnels runs under the park towards Berlin's |
