수치 해석을 이용하여 제진대와 제진대에 부착된 가속도계의 가속도 비교

다국어 초록 (Multilingual Abstract)

The process of producing high precision and light weight product is always exposed to impact load or shock. Because of this, isolator device is required. To measure the response of the isolator, accelerometer is practically used. However, the measured response of the accelerometer is different to the response of the isolator. To predict the response of the accelerometer and the isolator, 2-DOF damped system with an input shock is modeled using numerical analysis. 1-DOF damped system with a base excitation is also used to predict the response of the isolator. The mass ratio, damping ratio, and natural frequency ratio are then varied. The predicted responses from the two modeling approaches are compared and large errors are found.

참고문헌 (Reference)

1 김광준, "시간지연 제어기법을 이용한 공압 제진대의 저주파 영역에서의 진동 절연 성능 향상" 한국소음진동공학회 16 (16): 1100-1107, 2006

2 Todkar, R. G., "The Effect of Mass Ratio and Air Damper Characteristics on the Resonant Response of an Air Damped Dynamic Vibration Absorber" 1 (1): 93-103, 2011

3 Rivin, E. I., "Passive Vibration Isolation" ASME Press 2003

4 Kato, T., "New, High Precision, Quick Response Pressure Regulator for Active Control of Pneumatic Vibration Isolation Tables" 34 (34): 43-48, 2010

5 Zhang, C. L., "Active Vibration Isolation of a Micro -manufacturing Platform Based on a Neural Network" 129 (129): 634-639, 2002