| Title |
Dynamic Characteristics of Moving Coil Type Linear Oscillatory Actuator |
| Authors |
장석명(Jang, S.M.) ; 정상섭(Jeong, S.S.) ; 권철(Kweon, C.) ; 박희창(Park, H.C.) ; 문석준(Moon, S.J.) ; 박찬일(Park, C.I.) ; 정태영(Chung, T.Y.) |
| Keywords |
moving-coil-type LOA ; thrust & EMF constant ; open circuit test ; dynamic simulation |
| Abstract |
A moving-coil-type linear oscillatory actuator(LOA) consists of the NdFeB permanent magnets with high specific energy as the stator, a coil-wrapped nonmagnetic hollow rectangular structure. The LOA system was represented by the voltage equation of coil and the mechanical equation of motion. This set of equations was manipulated in state-space form. The EMF constant kE of equation parameters in state-space form can be obtained by using the induced voltage in armature coils at open circuit test. kE and other parameters provide the system matrices and transfer function for frequency response and dynamic simulation. Voltage source inverter-fed LOA is examined aiming to compare with results of simulation. |