Brake system for brake rotary units, comprises brake mechanism which uses active material and compensates for wear, where active material has controlled degree of expansion and tension

摘要

The brake system comprises a brake mechanism which uses an active material and compensates for wear. An active material has a controlled degree of expansion and tension. A ferromagnetic alloying change of shape is used as an actuator which is made of an active material to generate expansion and tension. A magnetostrictive material is used as an actuator. A piezo-electric material is also used as the actuator to generate expansion and tension.