Friday, 2 September 2016
Rolls-Royce | Permanent Magnet Technology
The AZ-PM thruster is the latest in a range of Rolls-Royce propulsion products using its permanent magnet technology. This technology is based on electric drive where the motor is in the form of a ring round the propeller. The moving part of the ring is a rim around the propeller blades which carries a series of strong permanent magnets. The rotor, fitted within a series of magnets, turns within an outer ring which form the stator.
When current is supplied to the motor from the variable frequency power supply the electromagnets are excited in a particular sequence and the resulting magnetic fields interact with the field from the rotor magnets creating a torque that turns the rotor and its propeller blades.
At the centre of the thruster the propeller blades are joined to a hub, which has two functions; to carry the bearings taking propeller thrust and provide radial location of the rotor, and to improve the hydro-dynamic efficiency of the thruster. Loads are transferred to the stator through struts. Both rotor and stator are sealed against water ingress and operate fully submerged.
Rolls-Royce PM technology is flexible, and is currently applied in this integrated propeller drive form to tunnel thrusters (TT-PM) and azimuth thrusters (AZ-PM). Other versions in which the PM rotor is arranged to turn an output shaft provide a high torque, low speed, drive for winches.
Among the advantages of this PM thruster technology are high efficiency (at nominal speed) over the entire speed range, leading to low thermal losses and eliminating the need for separate cooling systems of the submerged motor. Thrusters are compact and robust, and require less space within the hull. They are simple, with far fewer components than geared thrusters and are also quieter, with reduced structure and airborne noise. Learn more about Permanent Magnet Thrusters http://www.rolls-royce.com/products-and-services/marine/product-finder/propulsors/azimuthing-thrusters.aspx#section-product-search
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whether magnets can benefit human life?
ReplyDeletehow important is magnetism for human life?
what is the impact if there is no magnet in the world?
magnet comes from the word magnesia, which is the name of a region in Asia Minor, where the discovery of iron rock more than 2000 years ago. In its development, magnets are now used in various tools from simple to very sophisticated and modern
ReplyDeleteThat's sound great. So we will use this technology for future. This tech will reduce the earth polution
ReplyDeleteMagnets are objects that are able to attract other objects around them that have special properties.
ReplyDeleteMagnets were first discovered by the Greeks in a city called Magnesia and were a natural magnetic discovery. We can also make our own magnets by permanently rubbing metals on magnets. And magnetism
ReplyDeletein general, it can also be used in electric motors as a voltage measurement tool.
Commonly, magnets are used in electrical motors and can be found in generator too. innovation engines usually like 3-phase motor magnetic coils are in the rotor
ReplyDeletemagnets are objects that are able to attract other objects around them that have special properties, for example magnets can rotate rotors.
ReplyDeleteMUHAMAT ABDUL RA'UF/XII-L1/20
How long does the magnet last?
ReplyDeleteWhat is the use of magnets in industry?
How do magnets work?
The magnet was frist discovered by the greeks in a city called magnesia and is a natural magnrt.we can also make our own magnet by rubbing metal on permanent magnet.magnets are commonly used in electric motors and can also be used as an electrical measuring instrument.
ReplyDeletemagnet is an object that has a magnetic field that can attract metal objects. magnets can be made in a way Gather supplies, Rub the magnet against the paperclip, Touch the paperclip against the smaller piece of metal. Magnets can also be used in electronic devices such as motors and magnetic switches
ReplyDeleteMagnet is an object that has a magnetic field. First discovered by the Greeks in a city called Magnesia and is a natural magnet. There are 3 types of magnets such as fixed magnets, non-permanent magnets, and artificial magnets. Magnets are generally used in electric motors and can also be used as an electrical measuring instrument.
ReplyDeleteYou want to say Tesla's engine
ReplyDeleteMagnets are objects that are able to attract other objects around them that have special properties.
ReplyDeleteMagnet is a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field. Place your weak magnet within the magnetic field of a much stronger magnet. Setting it right next to the magnet will produce the best result. At work, I use a tool called Magnetic contactors. Magnetic contactors are the same as the electrical relays which are used in a number of electric motors. Magnetic contactors are used in the electric motors to balance the change in frequency of the motor or the state of the motor which can be termed as the switching of the motor from ON and OFF state.
ReplyDeletemagnets are rocks or metals that can attract certain metals, how to make them by rubbing a fixed magnet, induction, and using an electric current or electromagnetic current
ReplyDeleteI think my phone is reading my mind, no really, I've been thinking about this exact same thing but I've never seen it and never spoke of it... Now here is this video, recommend.
ReplyDelete1. Can magnets benefit human life?
ReplyDelete2. How important is magnetism to human life?
3. Can the magnet be used for a long time or can it be durable?
All electric motors have permanent magnet,so what's the difference?It's just a brushless motors and run in water
ReplyDeleteMagnet is an object that can cause symptoms of force, both the tensile force or the repulsive force against certain types of metals such as iron, steel and others. Magnets are also interpreted as an object that can attract other objects that are also made of metal, such as iron, steel, cocoa and nickel.
ReplyDeleteWhether magnets can benefit human life?
ReplyDeleteDo magnets benefit daily life?
How important is a magnet to humans?
magnet is derived from the Greek magnitis lithos which means Magnesian stone. Magnesian is the name of a region in Greece in the past which is now called Manisa . In that region, many magnetic contents have been found since prehistoric times. Magnets are made of metals such as iron and steel. Magnets come in various shapes and are named according to their shape, such as the magnet U and the bar magnet.
ReplyDelete1. Magnet is an object that has a magnetic field. The word magnet comes from the Greek magnítis líthos which means Magnesian stone. Magnesia is the name of a region in Greece in the past which is now called Manisa, which contained magnetic stones found since ancient times in the region.
ReplyDelete2. There are 3 ways to use magnets:
Rubbing = by rubbing a fixed magnet on the iron
Induction. = occurs due to the influence of magnets around it
Electric current = making a magnet using direct electric current.
3. The benefits of magnets in helping work:
a. Scissors tip to make it easier to take the sewing needle.
b. Electric bell to move the bell hitter.
c. Chessboard so that the chess pieces are not easily overturned.
d. Kompas as a north-south direction.
e. Dynamo bikes and generators to generate electricity.
f. Tool for transporting metal objects.
How efficient to help human life?
ReplyDeleteWhat an excess of booster usual?
What speed up with the technology?
Good, very modern technology
ReplyDeletethought of this on my own years ago and then did research and saw that at least ten people/companies had thought of it before me even. Sorry Rolls Royce, some hobbyist inventor even beat you to it, not to mention may
ReplyDeleteprofessional
Jon Andersen 8 bulan lalu this is amazing. great for the ecology
"and hardly no cavitation" ..I
Magnetism is the ability of an object to attract an object that is around it. magnets are widely used for electronic devices, such as electric bells, telephones, and microphones.
ReplyDeletemagnets can produce perfect rotation so the ship can move perfectly
ReplyDeleteMagnet is an object that has a magnetic field.
ReplyDeleteThe coil is powered by an electric current
magnets can be made by flowing electric current in the direction (DC) on the coil. magnet can be used as a compass whose function is as a north-south direction.
Magnet is an object that has a magnetic field. The magnetizing effect is stronger if you heat the rod.
ReplyDeleteInduce a magnetic field with an electric current
A magnet is an object that a magnetic field. The are 3 types of magnets such as fixed magnets, nonpermanent magnets, and artificial magnets. And rotating magnetices field is created by the stator which interacts with the field of the permanent magnets.
ReplyDeleteCan we make them to serve as plane engines?
ReplyDeleteGm technology office reliabiliyy efitieny low environ mental and simpie instaliation, double power highway much more taller than than thevolume 100% .other benefits family friendly fuel efficient roster with reduce noice and vibration levels and heardly no covitation. Megnet technologi that has its component atom so orderd that material exhibits properis of magnrtisms
ReplyDeleteMagnet is derived from the Greek magnitis lithos which means magnesian stone. Magnesian is the name of a region in greece in the past which is now called manisa. In that region, many magnetic contents have been found since prehistoric times. Magnets are made of metals such as iron and steel. Magnets come on various snapes and are named according to their shape, such as the magnet u and the bar magnet.
ReplyDeleteis this tech being used in 4X4 drive vehicles?
ReplyDeleteMagnet is an object that has a magnetic field.There are three ways to make magnets:rubbing magnets, induction and flowing electric current.
ReplyDeletecan be used in everyday life for example taking objects from metal, pointing directions, producing electricity.
What percentage of rare earths?
ReplyDelete> 7 Jul 2020
ReplyDelete.
Dear RR
Maybe you can try install one of the PM Motor
At the Ship Bow below the water
.
Am sure it can help to let the Ship make TIGHTER Turn
AND
To make sudden quick steer away from Topedoes for War Ships
.
Also
Can install these PM Motors on DYNAMIC ANCHORS
So that ships do not need long heavy chains
Just a short one with PM Motors drop into the water
To keep the Ship in a STABLE STEADY Position
.
When we take the work out of rolling a wheel, it rolls faster, easier.
ReplyDeleteMotor in a wheel...big oil loves this concept...not!
ReplyDeleteAm i missing something or is this the same as any other motor of the kind for the last 20 years?
ReplyDeleteNot surprising but much updated
ReplyDeleteAll talkers here but no makers only rolls royce
ReplyDeleteHow it's make
ReplyDelete