| Title |
Fabrication and Characteristics of Flat-type L_{-}-B_{8} Mode Ultrasonic Motors |
| Authors |
우상호(U, Sang-Ho) ; 이은학(Lee, Eun-Hak) ; 김진수(Kim, Jin-Su) |
| Keywords |
L_{-}-B_{8} mode Ultrasonic Motor ; ANSYS simulation ; rotor revolution ; forwarding device |
| Abstract |
In this paper, a flat-type L_{-}-B_{8} mode Ultrasonic Motor[USM] having the size of 80 x 20 x {1.5}mm^3(l×Ω×t) was designed and fabricated to examine the characteristics of an ultrasonic vibration. We used ANSYS simulation program based on FEM to get the optimum design of this USM. As results of experiment, the fastest speed of revolution(v), the maximum torque(T) and the efficiency(n) were 37.5cm/s, 5.0 mN.m and 1.17% when 27.9KHz, 150N, 50V were applied respectively. And this flat-type L_{-}-B_{8} mode USM could be controlled the speed of rotor revolution by applied voltage, frequency and pre-load of rotor as well as showed the characteristics of typical drooping torque-speed, large torque and high speed. So, we think that this flat-type L_{-}-B_{8} mode USM has characteristics of enough torque and velocity to be usable for applications in forwarding device of an electric card or a paper, etc. |