• Title/Summary/Keyword: AFC(Adaptive Feed Control)

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Adaptive Control of Permanent Magnet Linear Synchronous Motor using Wavelet Transform

  • Lee, June;Lee, Jin-Woo;;Lee, Young-Jin;Lee, Kwon-Soon
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.63-67
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    • 2004
  • The problem is improving the positioning precision of a permanent magnet linear synchronous motor (PMLSM). Thus, this paper presents the design and realization of an adaptive dither to reduce the force ripple in PMLSM. A composite control structure is used, consisting of three components: a simple feed-forward component, a PID feedback component and an adaptive feed-forward compensator (AFC). Especially adaptive feed-forward component cancel out detent force using wavelet transformation. Computer simulation results verify the effectiveness of the proposed scheme for high precision motion trajectory tracking using the PMLSM

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Study on Optimized Machining of Duralumin using AFC (AFC를 이용한 두랄루민의 최적화 가공에 관한 연구)

  • Kang, Min-Seog
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.1
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    • pp.49-55
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    • 2020
  • Studies on the optimizations of machining processes use two different methods. The first is feed control in real-time by spindle load in a machine tool. The second is feed scheduling in NC code control by material removal rate using a CAD/CAM system. Each approach possesses its respective merits and issues compared to the other. That is, each method can be complementary to the other. The purpose of the study is to improve the productivity of the bulkhead, an aircraft Duralumin structure. In this paper, acceleration or deceleration of cutting tool by spindle load data is achieved using adaptive feed control macro programming in a machine tool.