능동제진시스템용 VCM 최적설계에 관한 연구
A study on optimal design of VCM for active vibration isolator
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초록
Recently, high precision equipment is required for measurement and test process in various industries. These systems are significantly affected by external disturbances, and floor vibration in particular can lead to performance degradation and measurement errors. Passive vibration isolator using springs, pneumatic mounts, and dampers is one method for reducing floor vibration. To overcome the shortcomings of passive vibration isolation, active vibration isolation is being used, which detects external disturbances in real time using vibration sensors and compensates with actuators to suppress vibration. In this study, VCM(Voice Coil Motor) is developed as the actuator for the active vibration isolation system. The conceptual design and optimal design of the VCM structure are conducted to ensure sufficient force to isolate the external disturbance. The optimal design is performed by making the maximum force within the given size and resistance values as the objective function, and the VCM is manufactured based on the optimal design value. Finally, a testbed is constructed to measure the VCM force constant. The optimal design result, simulation result, and experimental result are compared to verify the design.
Abstract
Recently, high precision equipment is required for measurement and test process in various industries. These systems are significantly affected by external disturbances, and floor vibration in particular can lead to performance degradation and measurement errors. Passive vibration isolator using springs, pneumatic mounts, and dampers is one method for reducing floor vibration. To overcome the shortcomings of passive vibration isolation, active vibration isolation is being used, which detects external disturbances in real time using vibration sensors and compensates with actuators to suppress vibration. In this study, VCM(Voice Coil Motor) is developed as the actuator for the active vibration isolation system. The conceptual design and optimal design of the VCM structure are conducted to ensure sufficient force to isolate the external disturbance. The optimal design is performed by making the maximum force within the given size and resistance values as the objective function, and the VCM is manufactured based on the optimal design value. Finally, a testbed is constructed to measure the VCM force constant. The optimal design result, simulation result, and experimental result are compared to verify the design.