A novel fault-tolerant high-thrust inverter-controlled permanent magnet linear actuator as a direct-drive for shipboard loads

In today's large ships a wide use is made of hydrostatic transmission systems combined with traditional hydraulic machinery, such as piston-, rotary-vane- and screw-motors and pumps, to operate high-torque low-speed onboard actuators like rudders, stabilizing fins and bow thrusters. Such mechanical drives are very cumbersome and suffer from serious… CONTINUE READING