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Large vessels sometimes use electrical propulsion motors, the electrical power being provided by a diesel generator. Noise and vibration of electric motors include, besides mechanical and aerodynamic sources, an electromagnetic source due to electromagnetic forces which is responsible for the "whining noise" of the motor.
On marine vessels the Power Management System PMS is in charge of controlling the electrical system. Its task is to make sure that the electrical system is safe and efficient. If the power consumption is larger than the power production capacity, load shedding is used to avoid blackout.
A brushless alternator is composed of two alternators built end-to-end on one shaft. Until 1966, alternators used brushes with rotating field. [20] With the advancement in semiconductor technology, brushless alternators are possible. Smaller brushless alternators may look like one unit, but the two parts are readily identifiable in the large ...
Xanthus-class vessels provided a diverse range of auxiliary repair functions for both the US and British navies. American-flagged ships served in the Pacific with the US Navy, repairing ships damaged in the final battles against Japan. These ships continued their role after the war by providing support for the Allied occupation of Japan ...
For certain types of electric motors or generators to function, the coils of the rotor must be connected to complete an electrical circuit. Originally this was accomplished by affixing a copper or brass commutator or 'slip ring' to the shaft, with springs pressing braided copper wire 'brushes' onto the slip rings or commutator which conduct the current.
Reconstruction of a 19th-century naval architect's office, Aberdeen Maritime Museum General Course of Study leading to Naval Architecture degree Naval architecture, or naval engineering, is an engineering discipline incorporating elements of mechanical, electrical, electronic, software and safety engineering as applied to the engineering design process, shipbuilding, maintenance, and operation ...
An Inspection, Maintenance and Repair (IMR) vessel is a highly technical vessel, deployed in the offshore industry. Their primary task comprises the inspection and repair of subsea facilities and installations. These vessels are often equipped for other tasks including diving support, scale treatment and light construction work.
A repair ship is a naval auxiliary ship designed to provide maintenance support to warships. Repair ships provide similar services to destroyer , submarine and seaplane tenders or depot ships , but may offer a broader range of repair capability including equipment and personnel for repair of more significant machinery failures or battle damage.
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969 E Main St, Columbus, OH · Directions · (614) 257-0248