Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2000.11a
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- Pages.997-1001
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- 2000
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- 2005-8446(pISSN)
Runout Control of Mgenetically Suspended Grinding Spindle - Experimental Analysis of Adaptive LMS Feedforward Control Method -
자기베어링으로 지지된 연삭 스핀들의 런아웃 제어 -LMS Feedforward 제어를 이용한 실험적 해석-
Abstract
In this paper, the case studies of reducing rotational errors is theoretically done for a grinding spindle with an active magnetic bearing system. The rotational errors acting on the magnetic bearing spindle are due to mass unbalance of rotor, runout, grinding excitation and unmodeled nonlinear dynamics of electromagnets. For the most case, the electrical runout of sensor target is big even in well finished surface, this runout can cause a rotation error amplified by feedback control system. The adaptiveed forward method based on LMS algorithm is discussed to compensate this kind of runout effects, and investigated its effectiveness by numerical simulation and experimental analysis. The electrical runout form the rear sensor target of grind spindle is about 70
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