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High-Redundancy Linear Electro-mechanical Actuator for Fault Tolerance

High-Redundancy Linear Electro-mechanical Actuator for Fault Tolerance. Hasmawati Antong Dr. Roger Dixon and Dr. Christopher Ward Loughborough University. Introduction. Drawbacks of over-actuation Increase size and cost Employs only parallel configuration. Reduces efficiency.

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High-Redundancy Linear Electro-mechanical Actuator for Fault Tolerance

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  1. High-Redundancy Linear Electro-mechanical Actuator for Fault Tolerance HasmawatiAntong Dr. Roger Dixon and Dr. Christopher Ward Loughborough University UKACC PhD Presentation Showcase

  2. Introduction • Drawbacks of over-actuation • Increase size and cost • Employs only parallel configuration Reduces efficiency Useless if lock-up fault present • High-Redundancy Actuator (HRA) • A new concept to fault tolerant actuator • Actuation elements connected in series and parallel to form a single actuator • Improves reliability and availability • Reduceover-sizing UKACC PhD Presentation Showcase

  3. Research Objective and Proposed Configuration • Research objective: To demonstrate the concept of high-redundancy actuator (HRA) with 12 elements HRA test rig Actuation element (linear EMA) 3x4 series in parallel HRA UKACC PhD Presentation Showcase

  4. Work To Date 2) Simulation Result 1) Actuator modeling Actuator displacement : Single actuator = 12.5cm; HRA = 37cm Output force : Single actuator = 0.4N; HRA = 1.2N UKACC PhD Presentation Showcase

  5. Conclusion and future works • Conclusion • Model of the single actuator and HRA has been obtained • The HRA increase both displacement and force • Future Works 1) Real-time experiment 2) Fault-tolerant controller design 3) Health monitoring algorithm design 4) Evaluate performance of the overall system UKACC PhD Presentation Showcase

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