68 巻 (2002) 673 号 p. 2736-2742
About the multi-disk brake driven by a piezoelectric actuator and solenoids proposed in the first report, the motion and the acting force of each component of it have been analyzed with consideration of the contact phenomena of stick, slip and separation. The present paper is focused on the wedge mechanism that transforms the kinetic energy of plunger of the solenoid mainly to the elastic energy of the brake pads and disks. Then the relationship between the brake application force and the geometric and dynamic parameters of the wedge mechanism has been investigated both theoretically and experimentally.