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Electric drive
| Морской словарь |
- A propulsion system in which main engines drive generators that send electrical power to motors which drive the propellers. with this system, overall efficiency can be improved by taking surplus units off-line and running the remaining generators at close to full output. it is also a partial answer to the problem of propulsion machinery and drive shafts that occupy space otherwise available for weaponry and ammunition in warships, or passengers and cargo in merchantmen. moreover, electric drives can be placed further aft, reducing the length of propeller shafts for in-hull motors, or to zero for those in external pods. electric drive is far from new. a battery-powered boat motored along moscow’s neva river as early as 1834, and by the 1880s electric propulsion was a viable competitor to mechanical drives for passenger liners. when launched in 1932, ss normandie was the largest and fastest ship in the world (see blue riband), and is still the most powerful steam-turbo-electric propelled passenger vessel ever built. today’s largest is the cruise ship freedom of the seas whose diesel-electric engines power podded drive propulsion. as for warships, submarines have, of necessity, always relied on electric propulsion, while the usn enthusiastically adopted the system for surface ships in the early 1900s. its first aircraft carrier uss langley (the former collier jupiter) had hybrid-electric drive, and the system was installed in lexington class carriers, and tennessee and colorado class battleships. both the united states and royal navies have announced that their next generation surface warships will feature electrical propulsion. see also codag–electric.
- Электропривод
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Drive, английский
- Привод
- [1] generically, to push in some direction. [2] the force of the wind pushing to leeward. [3] to carry as much sail as is possible in heavy wind. [4] a ship is said to drive if her anchor fails to hold.
- Driving. 1. to advance or sink drivepipe or casing through overburden or broken rock formation by chopping, washing, or hammering with a drive hammer or by a combination of all three procedures. 2. to excavate a horizontal underground passage or tunnel. 3. any power-transmission system such as belt drive, gear drive, chain drive, electric drive, etc.
- Designation of the pipe installed from a jacking shaft to a reception shaft.
- Guide, steer
- Guide, steer to push or move forward a plan or project
Drive (drove, driven), английский
Drive a , bore-hole, английский
Бурить скважину
Drive alternation, английский
Попеременное обращение к дисководам drive-array technology технология матричной дисковой памяти; матричный комплекс внешней памяти
Drive assembly, английский
Drive band, английский
In pile driving, a steel band which encircles the head of a timber pile to prevent it from splitting when being driven.
Drive band., английский
Drive bay, английский
- The opening in a computer chassis designed to hold a floppy drive, hard drive, cd-rom drive, tape drive or other device. may be half-height or full-height, exposed or internal.
- Секция под дисковод; ниша дисковода; отсек для дисковода
Drive belt, английский
Drive block, английский
- Drive hammer
- Ударная баба, используемая для аварийных работ на скважинах
Drive boat, английский
Drive cage, английский
Отсек для дисковода
Drive cap, английский
- A steel attachment placed over the top end of a pile to prevent damage while it is driven in the ground.
- Driving cap. see drive head 1.
Drive cap., английский
Drive capstan, английский
Ведущая ось
Drive casing, английский
Heavy, thick-walled casing, which is stronger than standard casing, and hence may be driven through overburden or material with less danger of being damaged than standard casing.
Drive chuck, английский
Mechanism at lower end of a diamond-drill drive rod on the swivel head by means of which the movements of the drive rod can be imparted to the drill string. also called chuck.
Drive circuit, английский
Управляющая схема
Drive code, английский
Управляющий код
Drive collar, английский
- Extra thick walled pipe or casing coupling against which the blow of a drive block is delivered when driving or sinking drivepipe or casing.
- An oversize rod or casing coupling on which the blows of a drive block are delivered when casing is being driven or an attempt is being made to jar loose stuck casing or a drill-rod string.
- Incorrectly used as a synonym for drive shoe,
Drive control, английский
Управление дисководом
Propulsion, английский
- (реактивное) движение; силовая [двигательная] установка; двигатель
- Cредства движения; движение
- Marine propulsion is the act of moving an object through the water or across its surface. poles, paddles, and oars were the earliest forms, while sails represented the most significant historical method. today, common types are underwater propeller, water-jet, paddle wheel and, experimentally, magnetohydrodynamic drive.
Electrical, английский
Efficiency, английский
- A rating on comfort equipment, similar to the miles per gallon rating on your car. the higher the rating, the more efficient the system and the lower your fuel consumption will be.
- A comfort-equipment and fuel-efficiency rating similar to the miles-per-gallon rating for automobiles
- A general term used to describe how effectively a heat pump, air conditioning system, or furnace converts incoming energy to outgoing energy. the higher the number, the more efficient the unit, and the lower the operating costs.
- A measure of a product`s ability to utilize input energy; expressed as a percentage.
- Эффективность; кпд
- Эффективность (производства); производительность (труда), см. yield, utility, productivity
- Эффективность
- Эффективность; полезный эффект результативность в зависимости от затраченных ресурсов (времени, финансов и др.).
- Эффективность (улавливания частиц). применительно к фильтрам, пылеуловителям и брызговым скрубберам — отношение количества частиц, задерживаемых данным устройством, к поступающему в него количеству (обычно выражается в процентах) (предварительный стандарт мос, 8).
- In a loudspeaker, the ratio of acoustic power output to electrical power input.
- The degree and speed with which a market accurately incorporates information into prices.
- An economic goal of receiving the most satisfaction from a given amount of resources; it occurs when satisfaction cannot be increased through increased production of one good and less of another. see allocativeefficiency and productiveefficiency.
- Однокомнатная квартира с плитой и раковиной в жилой комнате
- The ratio of the useful energy output to energy input of a machine or other energy-converting plant.
Ammunition, английский
- Боеприпасы
- This word had an infinite variety of meanings. it includes every description of warlike stores, comprehending not only the ordnance, but the powder, balls, bullets, cartridges, and equipments.—ammunition bread, that which is for the supply of armies or garrisons.—ammunition chest, a box placed abaft near the stern or in the tops of men-of-war, to contain ammunition, for the arms therein placed, in readiness for immediate action.—ammunition shoes, those made for soldiers and sailors, and particularly for use by those frequenting the magazine, being soft and free from metal.—ammunition waggon, a close cart for conveying military effects.—ammunition wife, a name applied to women of doubtful character.
- The explosive and propellant components of military projectiles, including bullets, bombs, cartridges, fuses, grenades, mines, missiles, powder, primers, pyrotechnics, rockets, shot, shrapnel, and the like.
Competitor, английский
- Участник соревнований
- Конкурент
- An entity that sells similar products or services and competes for the same customer segment.
Mechanical, английский
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Electromagnetic railgun, английский
This emerging technology uses high power electromagnetic energy instead of chemical propellants to propel a projectile farther and faster than conventional artillery. two parallel metallic rails are connected to a power supply. when a conductive projectile is placed on them, it completes the circuit, creating a magnetic field which accelerates the projectile along the rails. no explosives are required to fire the weapon and, since the high-velocity projectiles destroy targets by kinetic energy, no explosive rounds need to be stored in the ship’s magazine. a successful experimental firing was conducted at the united states naval surface warfare center, dahlgren, virginia, on january 31, 2008. electronic chart display and information system: a specific form of shipborne computer-based navigation information system that complies with international maritime organization regulations and can be used in lieu of paper navigation charts in some areas. a true ecdis displays information from electronic navigational charts and integrates position information from the global positioning system and other navigational sensors, such as radar, fathometer and automatic identification systems. it may also display additional navigation-related information, such as sailing directions. the term is often incorrectly used to refer to non–imo-compliant types of electronic chart display (cf. raster chart display system).
El nino southern oscillation event, английский
A periodic disruption of the ocean-atmosphere system in the 107 el nino tropical pacific that can have important consequences for weather and climate around the globe, including destructive floods and devastating bush fires. known as enso events, they occur irregularly every 2–7 years due to warmer than usual sea surface temperatures. the name was coined by south american fishers who noted that the phenomenon often appears near christmastime (el nino, which means “the little boy” is a synonym for christ child). an el nino is often followed by a la nina event.
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