한국공작기계학회:학술대회논문집 (Proceedings of the Korean Society of Machine Tool Engineers Conference)
- 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
- /
- Pages.697-703
- /
- 2000
공작기계 자기베어링 - 주축 시스템의 능동진동 안정성 연구
Stability for Active Vibration Magnetic Bearing - Main Spindle of a Machine Tool
초록
In design step of an active vibration control system, the stability analysis is required for obtaining a stable control region so that the system is protected from it violent natural vibration. This paper describes the procedure of stability simulation for the active magnetic bearing-main spindle of a machine tool. The characteristic equation of the overall system is derived by assembling the dynamic equation of a flexible shaft and the transfer functions of feedback components. And the stable region is obtained by calculating the eigenvalues of the characteristic equation. The simulated control stable region is good agreement by comparing the experiment. Therefore the stable control gain is selected in this paper.