{"id":121440,"date":"2021-04-11T15:25:52","date_gmt":"2021-04-11T22:25:52","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2021\/04\/rolls-royce-permanent-magnet-technology"},"modified":"2021-04-11T15:25:52","modified_gmt":"2021-04-11T22:25:52","slug":"rolls-royce-permanent-magnet-technology","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2021\/04\/rolls-royce-permanent-magnet-technology","title":{"rendered":"Rolls-Royce | Permanent Magnet Technology"},"content":{"rendered":"

<\/p>\n

https:\/\/youtu.be\/AZeWPlVoLko<\/a><\/p>\n

Permanent magnetic motors circa 2014.<\/p>\n

\n

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.<\/p>\n

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.<\/p>\n

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.<\/p>\n

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.<\/p>\n

Continue reading \u201cRolls-Royce | Permanent Magnet Technology\u201d | ><\/a><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"

https:\/\/youtu.be\/AZeWPlVoLko Permanent magnetic motors circa 2014. 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 [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1514],"tags":[],"class_list":["post-121440","post","type-post","status-publish","format-standard","hentry","category-space-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/121440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=121440"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/121440\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=121440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=121440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=121440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}